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Your Vehicle  //  Porsche  //  997 (911) MK2 2009-2012  //  997 MKII Carrera C2 3.6L 2009-12
Porsche997 (911) MK2 2009-2012997 MKII Carrera C2 3.6L 2009-12Engine Rebuild Parts

Crankshaft & Parts

Crankshaft & Parts

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DISPLAYING 1 to 16 (of 17 products)
1 2
Bearing clearance gauge kit, Plastigauge - PLA007, PLA008
2
Bearing clearance gauge kit, Plastigauge
PLASKIT
Product Information
Product Information
Bearing clearance gauge kit


Kit includes:
1 x Plastigauge PL-A box 
1 x Plastiguage Mineral grease 
1 x Plastiguage Silicone grease 

PLASTIGAUGE PL-A is widely used in the measurement of clearance in plain automotive bearings. Measurement of clearance in big-end bearings can be achieved without dismantling the crankshaft.

3G Minerak Grease: To coat journal prior to use of Plastigauge 
3G Silicone Grease: To apply to surface of shell





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Related, superseded, cross reference or alternative numbers for comparison.

PLASKIT
PLA007
PLA008

The product you are viewing cross references to these numbers
Bearing clearance gauge pack of 100, Plastigauge. - PL-A
3
Bearing clearance gauge pack of 100, Plastigauge.
PLA007
Product Information
Product Information
Bearing clearance gauge pack
100 Plasigauge strips per box



PLASTIGAUGE PL-A is widely used in the measurement of clearance in plain automotive bearings. Measurement of clearance in big-end bearings can be achieved without dismantling the crankshaft.

For measurements of: 0.001″ to 0.007″ (0.025mm – 0.175mm)

Suitable for use at temperatures between 0°C and 35°C

Contents: 

  • 100 gauges (each 10cm in length)
  • Measurement reading cards (mm & inches)
  • Instructions
  • We highly recommend the use of Silicone and Mineral greases. 



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PLA007
PL-A

The product you are viewing cross references to these numbers
Connecting Rod Bush. Porsche 987.2 Boxster / Cayman / 997.2 Carrera 2009-12 - 9A110312202
2
Connecting Rod Bush. Porsche 987.2 Boxster / Cayman / 997.2 Carrera 2009-12
Special Order item
9A110312202
Product Information
Product Information
Connecting Rod Bush.

The Genuine Porsche Connecting Rod Bush (Part Number: 9A110312202) is a precision-engineered internal engine component designed to provide a durable, low-friction bearing surface between the connecting rod small end and the piston pin on selected Porsche 911, Boxster and Cayman engines.
Sold Each.
x6 Required Per Car.

Fits:

  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12  

Diagram Ref No 7

Manufactured to Porsche's original equipment specifications, this connecting rod bush is designed to withstand the demanding operating conditions found within Porsche's high-performance flat-six engines, including repeated mechanical loading, high temperatures and continuous rotational movement.

The connecting rod bush is installed within the small end of the connecting rod, providing a precisely fitted bearing surface that allows the piston pin to articulate smoothly as the piston moves up and down inside the cylinder.

Maintaining the correct clearance between the connecting rod bush and piston pin is essential for smooth engine operation, efficient power transfer and long-term internal engine reliability.

Over time, connecting rod bushes can become worn, scored or damaged due to inadequate lubrication, excessive mechanical loading, overheating or prolonged engine operation. Excessive clearance can result in unwanted engine noise, increased vibration and accelerated wear of the piston pin and connecting rod assembly.

Replacing a worn or damaged connecting rod bush with a Genuine Porsche component helps restore the correct bearing clearance and maintain reliable operation of the engine's reciprocating assembly.

Ideal for professional engine rebuilding, connecting rod refurbishment and internal engine repairs, this Genuine Porsche connecting rod bush provides the correct replacement specification for compatible Porsche engines.

What This Product Does:
The connecting rod bush, also known as a small-end bush or piston pin bush, is an essential component within the engine's piston and connecting rod assembly.

Its primary function is to provide a low-friction bearing surface between the small end of the connecting rod and the piston pin, also known as the gudgeon pin or wrist pin.

During engine operation, combustion forces push the piston downwards within the cylinder. These forces are transferred through the piston pin and connecting rod to the crankshaft, converting the piston's reciprocating movement into rotational motion.

The connecting rod bush allows controlled relative movement between the piston pin and connecting rod while maintaining the precise clearance required for reliable operation.

Its main functions include:

  • Reducing friction: Provides a low-friction bearing surface between the piston pin and connecting rod small end.
  • Supporting smooth piston movement: Allows the piston pin to articulate correctly as the connecting rod changes angle during engine operation.
  • Maintaining correct bearing clearance: Helps preserve the precise mechanical tolerances required between the piston pin and connecting rod.
  • Distributing mechanical loads: Transfers combustion and inertial forces across the bearing contact surface.
  • Protecting the connecting rod: Reduces direct metal-to-metal wear between the piston pin and connecting rod bore.
  • Supporting engine reliability: Helps maintain dependable operation of the reciprocating assembly under demanding engine loads.
  • Reducing mechanical noise: Correct bearing clearances help minimise unwanted movement and knocking associated with excessive small-end wear.
  • Supporting efficient power transfer: Maintains the mechanical connection that transfers piston forces through the connecting rod to the crankshaft.

Symptoms Of Wear Or Failure:
Connecting rod bushes operate under significant mechanical loads and are subjected to continuous movement throughout the engine's operating cycle.

Although designed for long service life, the bushes may deteriorate due to lubrication problems, excessive temperatures, contamination, high engine loads or incorrect assembly clearances.

Common symptoms of a worn or failing connecting rod bush include:

  • Engine knocking or tapping noises: Excessive clearance between the piston pin and connecting rod bush may produce a metallic tapping or knocking sound during engine operation.
  • Unusual engine noise during acceleration: Changes in combustion load may make excessive small-end clearance more noticeable.
  • Increased mechanical vibration: Severe wear may contribute to abnormal movement within the piston and connecting rod assembly.
  • Excessive piston pin clearance: A worn bush may allow movement beyond the manufacturer's specified tolerance.
  • Scoring or surface damage: Inspection during engine dismantling may reveal scratches, scoring or wear marks on the internal bearing surface.
  • Discolouration or overheating damage: Insufficient lubrication or excessive friction can cause heat-related damage to the bush and piston pin.
  • Uneven bearing wear: Incorrect alignment, lubrication problems or excessive loading may produce irregular wear patterns.
  • Metallic particles in engine oil: Severe internal wear may introduce metallic debris into the lubrication system.
  • Damage to the piston pin: Excessive bush wear may cause scoring or deterioration of the corresponding piston pin surface.
  • Reduced engine reliability: Continued operation with excessive small-end clearance may increase the risk of further damage to the piston and connecting rod assembly.

Why Replacement Matters:
Replacing a worn connecting rod bush is essential for maintaining the correct mechanical clearances and long-term reliability of the engine's piston and connecting rod assembly.

A deteriorated bush may develop excessive clearance around the piston pin, allowing unwanted movement and increasing contact stresses within the connecting rod small end.

If left unresolved, this wear may result in abnormal engine noise, damage to the piston pin, accelerated wear of surrounding components and potentially serious internal engine damage.

Installing a Genuine Porsche replacement connecting rod bush helps to:

  • Restore correct bearing clearance: Maintain the precise fit required between the piston pin and connecting rod small end.
  • Reduce unwanted mechanical movement: Eliminate excessive play caused by a worn bush when correctly fitted and machined.
  • Protect the piston pin: Provide a renewed bearing surface to reduce friction and prevent further pin damage.
  • Support smooth engine operation: Maintain controlled movement within the piston and connecting rod assembly.
  • Improve internal engine reliability: Replace worn bearing surfaces before further mechanical damage develops.
  • Maintain efficient force transfer: Preserve the mechanical connection between the piston and crankshaft.
  • Reduce the risk of engine damage: Prevent continued operation with excessive small-end clearance that could damage associated components.
  • Support professional engine rebuilding: Provide a replacement bearing component during connecting rod refurbishment.
  • Preserve original Porsche specifications: Restore the intended dimensions and mechanical characteristics when correctly installed.
  • Maintain long-term durability: Support reliable operation under the high loads experienced in Porsche flat-six engines.

Replacing connecting rod bushes is particularly recommended during engine rebuilding when inspection identifies excessive clearance, scoring, deformation or other damage.

Because these components are located inside the engine, replacement generally requires significant engine disassembly and specialist machining procedures.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A110312202
9A110312202

The product you are viewing cross references to these numbers
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997 - 9A110106300, 0PB105561E
3
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997
Special Order item
0PB105561E
Product Information
Product Information
Crankshaft bearing shell with partial-groove. 6 per engine. Sold individually. Colour designation: RED

Fits:
Porsche 987.2 Boxster 2.9L / S 3.4L 2009-12
Porsche 981 Boxster 2.7L / S 3.4L / Spyder 2012-16
Porsche 987C.2 Cayman 2.9L / S 3.4L 2009-12
Porsche 981C Cayman 2.7L / S 3.4L / GT4 2012-16
Porsche 997.2 Carrera 3.6L / S 3.8L 2009-12
Porsche 997 Turbo 3.8L 2010-13
Porsche 991.1 Carrera / S 2012-2016
Porsche 991 Turbo 3.8L 2014-18

Click 'Zoom in' for large parts diagram.
Diagram Ref No 11

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Related, superseded, cross reference or alternative numbers for comparison.

0PB105561E
9A110106300
0PB105561E

The product you are viewing cross references to these numbers
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997 - 9A110106302, 0PB105561G
5
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997
Special Order item
0PB105561G
Product Information
Product Information
Crankshaft bearing shell with partial-groove. 6 per engine. Sold individually. Colour designation: BLUE

Fits:
Porsche 987.2 Boxster 2.9L / S 3.4L 2009-12
Porsche 981 Boxster 2.7L / S 3.4L / Spyder 2012-16
Porsche 987C.2 Cayman 2.9L / S 3.4L 2009-12
Porsche 981C Cayman 2.7L / S 3.4L / GT4 2012-16
Porsche 997.2 Carrera 3.6L / S 3.8L 2009-12
Porsche 997 Turbo 3.8L 2010-13
Porsche 991.1 Carrera / S 2012-2016
Porsche 991 Turbo 3.8L 2014-18

Click 'Zoom in' for large parts diagram.
Diagram Ref No 11

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Related, superseded, cross reference or alternative numbers for comparison.

0PB105561G
9A110106302
0PB105561G

The product you are viewing cross references to these numbers
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997 - 0PB105561R, 0PB105561F, 9A110106301
3
Crankshaft bearing shell with partial-groove. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997
Special Order item
0PB105561R
Product Information
Product Information
Crankshaft bearing shell with partial-groove - Colour designation: YELLOW
Sold individually - 6 per engine. 

Fits:
Porsche 987.2 Boxster 2.9L / S 3.4L 2009-12
Porsche 981 Boxster 2.7L / S 3.4L / Spyder 2012-16
Porsche 987C.2 Cayman 2.9L / S 3.4L 2009-12
Porsche 981C Cayman 2.7L / S 3.4L / GT4 2012-16
Porsche 997.2 Carrera 3.6L / S 3.8L 2009-12
Porsche 997 Turbo 3.8L 2010-13
Porsche 991.1 Carrera / S 2012-2016
Porsche 991 Turbo 3.8L 2014-18

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Diagram Ref No 11

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Related, superseded, cross reference or alternative numbers for comparison.

0PB105561R
0PB105561R
0PB105561F
9A110106301

The product you are viewing cross references to these numbers
Crankshaft pulley with vibration damper. Porsche 987.2 / 981 / 997.2 / 991.1 - 9A110214604, 9A110214603, 9A110214602
5
Crankshaft pulley with vibration damper. Porsche 987.2 / 981 / 997.2 / 991.1
Special Order item
9A110214604
Product Information
Product Information
Crankshaft pulley with vibration damper

Fits:
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 987.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Boxster / Boxster S - 2012 to 2016
Porsche 981 Cayman / Cayman S - 2012 to 2016
Porsche 997.2 Carrera 2 / Carrera 2S - 2009 to 2012
Porsche 997.2 Carrera 4 / Carrera 4S - 2009 to 2013
Porsche 997.2 turbo / turbo S - 2009 to 2012
Porsche 991.1 Carrera 2S / Carrera 4 - 2012 to 2016
Porsche 991.1 Carrera 2S / Carrera 4S - 2012 to 2016
Porsche 991.1 / 991.2  turbo - 2012 to 2019

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Diagram ref no 16


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9A110214604
9A110214604
9A110214603
9A110214602

The product you are viewing cross references to these numbers
Crankshaft. Porsche 997.2 Carrera 3.6L 2009-12 - 9A110208104, 9A110208103
5
Crankshaft. Porsche 997.2 Carrera 3.6L 2009-12
Special Order item
9A110208104
Product Information
Product Information
Crankshaft.

Fits:
Porsche 997 Carrera MKII 3.6L 2009>>2012
Cars With Engine Codes:

A102


Diagram Ref No 1





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Related, superseded, cross reference or alternative numbers for comparison.

9A110208104
9A110208104
9A110208103

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Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) - SR069
1
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1)
SR069
Product Information
Product Information
Exhaust bolt repair kit for Porsche DFI Engines on 911/997/991/ Boxster & Cayman (9A1) 2009-Onwards

Holy broken bolts Batman! Even the latest generation of DFI (9A1) heads on the water-cooled engines are reporting broken exhaust bolts. Tasks ranging from a simple exhaust system update through an engine removal, are consistently plagued by snapped, rusted, and broken exhaust manifold bolts. Rarely can an accurate removal of the broken bolt be performed with the engine in the car, and even after removal, the task is time consuming and if not done carefully can lead to a damaged head or faulty repair. STOMSKI RACING's answer to these problems is the SR069, a kit that easily, accurately, and flexibly allows you to drill out the broken bolts - with the engine still in the car- saving time and headaches. A CNC milled plate indexes precisely off the broken bolts and/or bolt holes. Using our uniquely designed Thumb Screws, the SR069 plate is locked in place (by threading a Thumb Screw over a broken bolt or by using a supplied bolt threaded through the SR069 Thumb Screw). With the included pilot drills and drill guides, the faulty bolt can be drilled out, producing a perfectly perpendicular and centered hole that if necessary can be chased with an included M8x1.25 tap.

Kit includes anodized aluminum fixture, drill bits, tap with extension, drill jigs/guides, Thumb Screws, and hardware in a sturdy storage case. Also includes our SR065D drill guide.
Front shaft oil seal. Porsche 997.2 / 987.2 / 991 / 981 / 982 - 9A110122202, 0PB105247, 247.110
3
Front shaft oil seal. Porsche 997.2 / 987.2 / 991 / 981 / 982
Special Order item
0PB105247
Product Information
Product Information
Front shaft oil seal. 52 x 72 x 9.

Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017>>
Porsche 991 Turbo 2014-18
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16 incl. Spyder
Porsche 982 (718) Boxster 2017>>
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2012-16 incl. GT4
Porsche 981C (718C) Cayman 2017>>

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Diagram ref no 4

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0PB105247
9A110122202
0PB105247
247.110

The product you are viewing cross references to these numbers
Front shaft oil seal. Porsche 997.2 / 987.2 / 991 / 981 / 982 - 9A110122202, 0PB105247, 247.110
3
Front shaft oil seal. Porsche 997.2 / 987.2 / 991 / 981 / 982
0PB105247/1
Product Information
Product Information
Front shaft oil seal. 52 x 72 x 9.

Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017>>
Porsche 991 Turbo 2014-18
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16 incl. Spyder
Porsche 982 (718) Boxster 2017>>
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2012-16 incl. GT4
Porsche 981C (718C) Cayman 2017>>

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Diagram ref no 4

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Related, superseded, cross reference or alternative numbers for comparison.

0PB105247
9A110122202
0PB105247
247.110

The product you are viewing cross references to these numbers
Hexagon head bolt crankshaft pulley BM8x1x25. Porsche 981 Spyder / 718 / 991 turbo / GT4 - 90038512702, 90038512701
3
Hexagon head bolt crankshaft pulley BM8x1x25. Porsche 981 Spyder / 718 / 991 turbo / GT4
Special Order item
90038512702
Product Information
Product Information
Hexagon head bolt crankshaft pulley - BM8x1x25
Sold each

Fits:
Porsche 987.2 Boxster / Cayman - 2009 to 2012       
Porsche 981 Boxster / Cayman - 2012 to 2016
Porsche 718 Boxster / Cayman - 
Porsche 997.2 - 2009 to 2012
Porsche 991 - 2012 to 2019
Porsche 718 Cayman GT4

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Diagram ref no 17



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90038512702
90038512702
90038512701

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Main crankshaft bearing shell. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997 - 9A110106400
3
Main crankshaft bearing shell. Porsche 987/981 Boxster / 987/981 Cayman / 991 / 997
Special Order item
9A110106400
Product Information
Product Information
Main crankshaft bearing shell. 8 per engine. Sold individually. Colour designation: RED

Fits:
Porsche 987.2 Boxster 2.9L / S 3.4L 2009-12
Porsche 981 Boxster 2.7L / S 3.4L / Spyder 2012-16
Porsche 987C.2 Cayman 2.9L / S 3.4L 2009-12
Porsche 981C Cayman 2.7L / S 3.4L / GT4 2012-16
Porsche 997.2 Carrera 3.6L / S 3.8L 2009-12
Porsche 997 Turbo 3.8L 2010-13
Porsche 991.1 Carrera / S 2012-2016
Porsche 991 Turbo 3.8L 2014-18
Porsche 991 GT3 2014-18

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Diagram Ref No 10

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9A110106400
9A110106400

The product you are viewing cross references to these numbers
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249
4
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
Special Order item
0PB105249
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11. 

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5. 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249 - 81-34819-00
3
Rear Main Seal - Crankshaft Oil Seal (85x105x11) - for Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
0PB105249/1
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11. 

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5. 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
Rear Main Seal - Crankshaft Oil Seal (85x105x11). Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1 - 99911347640, 99911349040, 99911349041, 94810121202, 99710121200, 99710121201, 0PB105249 - POR94810121202#F/4
3
Rear Main Seal - Crankshaft Oil Seal (85x105x11). Porsche 986 / 987 / 981 / 718 / 996 / 997 / 991 / 992 / 955 / 958 / 970 / 95B-1
0PB105249/4
Product Information
Product Information
Rear main seal (crankshaft oil seal) - 85 x 105 x 11
OE Match rear main seal / crankshaft oil seal, 85 x 105 x 11, for Porsche 986, 987, 981, 718, 996, 997, 991, 992, 955, 958, 970, and 95B.1 models. This replacement seal helps prevent engine oil leaks from the rear crankshaft area and supports correct engine sealing.

Fits:
Porsche 986 Boxster 2.5L 1997-99
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04

Porsche 987-1 Boxster 2.7L 2005-08
Porsche 987-1 Boxster S 3.4L 2005-08

Porsche 987-1 Cayman 2.7L 2005-08
Porsche 987-1 Cayman S 3.4L 2005-08

Porsche 987-2 Boxster 2.9L 2009-12
Porsche 987-2 Boxster S 3.4L 2009-12
Porsche 987-2 Boxster Spyder 3.4L 2011-12

Porsche 987-2 Cayman 2.9L 2009-12
Porsche 987-2 Cayman S 3.4L 2009-12
Porsche 987-2 Cayman R 3.4L 2012

Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
Porsche 981 Boxster GTS 3.4L 2015-16
Porsche 981 Boxster Spyder 3.8L 2016

Porsche 981 Cayman 2.7L 2014-16
Porsche 981 Cayman S 3.4L 2014-16
Porsche 981 Cayman GTS 3.4L 2014-16
Porsche 981 Cayman GT4 3.8L 2016

Porsche 718 (982) Boxster 2.0L 2017>>
Porsche 718 (982) Boxster T 2.0L 2020>> 
Porsche 718 (982) Boxster S 2.5L 2017>>
Porsche 718 (982) Boxster GTS 2.5L 2018-19
Porsche 718 (982) Boxster GTS 4.0L 2019>>
Porsche 718 (982) Boxster Spyder 4.0L 2019>> - Excludes RS

Porsche 718 (982) Cayman 2.0L 2017>>
Porsche 718 (982) Cayman T 2.0L 2020>> 
Porsche 718 (982) Cayman S 2.5L 2017>>
Porsche 718 (982) Cayman GTS 2.5L 2018-19
Porsche 718 (982) Cayman GTS 4.0L 2019>> 
Porsche 718 (982) Cayman GT4 4.0L 2019>> - Excludes RS   

Porsche 996-1 Carrera 3.4L 1998-01
Porsche 996-1 Carrera 4 3.4L 1999-01

Porsche 996-2 Carrera 3.6L 2002-04
Porsche 996-2 Carrera 4 3.6L 2002-04
Porsche 996-2 Carrera 4S 3.6L 2002-05
Porsche 996-2 Targa 3.6L 2002-04

Porsche 997-1 Carrera 3.6L 2005-08
Porsche 997-1 Carrera 4 3.6L 2006-08
Porsche 997-1 Carrera S 3.8L 2005-08
Porsche 997-1 Carrera 4S 3.8L 2006-08
Porsche 997-1 Targa 4 3.6L 2007-08
Porsche 997-1 Targa 4S 3.8L 2007-08

Porsche 997-2 Carrera 3.6L 2009-12
Porsche 997-2 Carrera 4 3.6L 2009-12
Porsche 997-2 Carrera S 3.8L 2009-12
Porsche 997-2 Carrera GTS 3.8L 2011-12
Porsche 997-2 Carrera 4 GTS 3.8L 2011-12
Porsche 997-2 Carrera 4S 3.8L 2009-12
Porsche 997-2 Targa 4 3.6L 2009-12
Porsche 997-2 Targa 4S 3.8L 2009-12

Porsche 997-2 Turbo / S 3.8L 2010-13

Porsche 991-1 Carrera 3.4L 2012-16
Porsche 991-1 Carrera 4 3.4L 2012-16
Porsche 991-1 Carrera S 3.8L 2012-16
Porsche 991-1 Carrera 4S 3.8L 2012-16
Porsche 991-1 Carrera GTS 3.8L 2015-16
Porsche 991-1 Carrera 4 GTS 3.8L 2016
Porsche 991-1 Targa 4 3.4L 2015-16
Porsche 991-1 Targa 4S 3.8L 2015-16
Porsche 991-1 Targa 4 GTS 3.8L 2015-16

Porsche 991-2 Carrera 3.0L 2017-19
Porsche 991-2 Carrera 4 3.0L 2017-19
Porsche 991-2 Carrera S 3.0L 2017-19
Porsche 991-2 Carrera 4S 3.0L 2017-19
Porsche 991-2 Carrera GTS 3.0L 2017-19
Porsche 991-2 Carrera 4 GTS 3.0L 2017-19
Porsche 991-2 Targa 3.0L 2017-19
Porsche 991-2 Targa 4 3.0L 2017-19
Porsche 991-2 Targa 4 GTS 3.0L 2017-19 

Porsche 991-1 Turbo 3.8L 2014-16
Porsche 991-2 Turbo 3.8L 2017-20

Porsche 992-1 Carrera 3.0L 2019-24
Porsche 992-1 Carrera T 3.0L 2023-24
Porsche 992-1 Carrera S 3.0L 2019-24
Porsche 992-1 Carrera GTS 3.0L 2022-24
Porsche 992-1 Carrera 4 3.0L 2019-24
Porsche 992-1 Carrera 4S 3.0L 2019-24
Porsche 992-1 Carrera 4 GTS 3.0L 2022-24
Porsche 992-1 Targa 4 3.0L 2019-24
Porsche 992-1 Targa 4S 3.0L 2019-24
Porsche 992-1 Targa 4 GTS 3.0L 2022-24

Porsche 992-1 Turbo / S 3.7L 2020>> 

Porsche 992-2 Carrera 3.0L 2024>>
Porsche 992-2 Carrera T 3.0L 2024>>
Porsche 992-2 Carrera S 3.0L 2024>>
Porsche 992-2 Carrera GTS T-Hybrid 3.6L 2024>>
Porsche 992-2 Carrera 4 GTS T-Hybrid 3.6L 2024>> 

Porsche 955 Cayenne S 4.5L V8 2003-06
Porsche 955 Cayenne Turbo 4.5L V8 2003-06

Porsche 957 Cayenne S 4.8L V8 2007-10
Porsche 957 Cayenne GTS 4.8L V8 2008-10
Porsche 957 Cayenne Turbo 4.8L V8 2007-10

Porsche 958-1 Cayenne S 4.8L V8 2011-14
Porsche 958-1 Cayenne GTS 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo 4.8L V8 2011-14
Porsche 958-1 Cayenne Turbo S 4.8L V8 2011-14

Porsche 958-2 Cayenne S 3.6L V6 2015-18
Porsche 958-2 Cayenne GTS 3.6L V6 2015-18
Porsche 958-2 Cayenne Turbo 4.8L V8 2015-18
Porsche 958-2 Cayenne Turbo S 4.8L V8 2015-18

Porsche 970-1 Panamera 3.6L V6 2010-13
Porsche 970-1 Panamera 4 3.6L V6 2010-13
Porsche 970-1 Panamera S 4.8L V8 2010-13
Porsche 970-1 Panamera 4S 4.8L V8 2010-13
Porsche 970-1 Panamera GTS 4.8L V8 2013
Porsche 970-1 Panamera Turbo 4.8L V8 2010-13
Porsche 970-1 Panamera Turbo S 4.8L V8 2010-13

Porsche 970-2 Panamera 3.6L V6 2014-16
Porsche 970-2 Panamera 4 3.6L V6 2014-16
Porsche 970-2 Panamera S 3.0L V6 2014-16
Porsche 970-2 Panamera 4S 3.0L V6 2014-16
Porsche 970-2 Panamera GTS 4.8L V8 2014-16
Porsche 970-2 Panamera Turbo 4.8L 2014-16
Porsche 970-2 Panamera Turbo S 4.8L 2014-16

Porsche 95B-1 Macan S 3.0L V6 2014-18
Porsche 95B-1 Macan GTS 3.0L V6 2014-18
Porsche 95B-1 Macan Turbo 3.6L V6 2014-18

Diagram ref. 5

The rear main seal seals the rear crankshaft exit point to prevent engine oil from leaking into the bellhousing or transmission area. A correctly fitted seal is essential for maintaining oil system integrity and keeping the clutch, flywheel, torque converter, and gearbox area free from oil contamination.

Functions
•  Replaces the rear main crankshaft oil seal
•  Helps prevent engine oil leaks from the rear crankshaft area
•  Supports correct engine oil sealing
•  Helps protect clutch, flywheel, and transmission components from oil contamination
•  Suitable for engine, clutch, flywheel, or gearbox service
•  Replaces hardened, worn, cracked, leaking, or damaged rear main seals
•  OE Match replacement for Porsche engine sealing repair.

Why Replace This Part?
Rear main seals are exposed to heat, oil pressure, crankshaft rotation, age, and engine vibration. Over time, the seal can harden, wear, crack, or lose sealing tension. A leaking rear main seal may cause oil drips between the engine and gearbox, oil contamination around the bellhousing, clutch slip on manual vehicles, burning oil smell, or failed inspection. Replacing the seal helps restore reliable engine sealing and prevents further oil leakage.

When to Replace This Part
•  Oil is leaking between the engine and gearbox
•  Rear main seal leakage is confirmed
•  The gearbox has been removed for service
•  Clutch, flywheel, or torque converter work is being carried out
•  The original seal is hardened, worn, cracked, or damaged
•  Engine rebuild or major service work is being completed
•  Preventative replacement is required while access is available.

Where it fits on the car
This seal fits at the rear of the crankshaft, between the engine and transmission area. It forms part of the engine oil sealing system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

0PB105249
99911347640
99911349040
99911349041
94810121202
99710121200
99710121201
0PB105249

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 17 products)
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About Crankshaft & Parts

Precision Crankshafts & Components – Engine Balance, Power, and Reliability for Porsche Models

The crankshaft is the backbone of every Porsche engine, responsible for transforming the reciprocating motion of pistons into smooth, rotational power. It endures immense pressure, heat, and mechanical load — making precision, strength, and perfect balance essential for sustained performance.

At Design911, we stock a comprehensive range of high-precision crankshafts and related components, including main bearings, thrust washers, oil seals, dowels, bolts, and pulleys. Each component is engineered from motorsport-grade materials to deliver optimal strength, fatigue resistance, and rotational balance for both classic and modern Porsche engines.

Whether you’re carrying out a complete engine rebuild or restoring a vintage air-cooled flat-six, our manufacturer-quality crankshaft parts ensure durability, smooth operation, and maximum efficiency under all driving conditions.

What Do Crankshafts and Crankshaft Parts Do?

The crankshaft plays a central role in the internal combustion process, converting piston motion into rotational energy that powers the drivetrain. Supporting components like bearings, seals, and bolts keep it perfectly aligned and lubricated for friction-free motion.

Core Functions:

  • Convert linear piston motion into rotational energy to drive the vehicle.
  • Maintain engine balance and smoothness across the RPM range.
  • Support precise oil flow and bearing lubrication for reduced friction.
  • Ensure stable load distribution, protecting connecting rods and bearings.

High-precision crankshaft assemblies are fundamental to maintaining Porsche’s signature smoothness, responsiveness, and reliability.

Why Do Crankshafts Fail?

Even the strongest crankshaft components can wear or fail over time due to extreme forces, lubrication issues, or age-related fatigue. Left unaddressed, these issues can lead to major engine damage.

Common Causes of Failure Include:

  • Oil starvation, leading to bearing wear and journal scoring.
  • Excessive vibration from imbalance or worn dampers.
  • Cracks or fatigue stress caused by high RPM or detonation.
  • Bearing seizure due to contamination or low oil pressure.
  • Improper torque or alignment during rebuilds.

Replacing worn or damaged components during an engine rebuild restores smooth rotation, lubrication integrity, and power delivery.

Why Replace with Precision-Engineered Crankshaft Components?

Using high-quality, precision-balanced crankshaft parts is vital to maintaining your Porsche’s performance and reliability. Upgrading or replacing aged components improves both powertrain smoothness and long-term engine life.

Key Benefits:

  • Restores rotational balance and smooth power delivery.
  • Prevents bearing failure and vibration from worn journals or misalignment.
  • Improves oil control and lubrication efficiency.
  • Enhances reliability and engine lifespan under load or high-RPM conditions.
  • Crafted from forged or billet materials for strength and durability.
  • Precision-fit design for both air-cooled and water-cooled Porsche engines.

Engine rebuilders and performance specialists trust these components to achieve race-grade precision with road-going reliability.

Highlights:

  • Comprehensive range of crankshafts, bearings, bolts, and seals for Porsche engines.
  • Precision-balanced components for smooth and efficient rotation.
  • Motorsport-grade materials ensure exceptional fatigue resistance.
  • Ideal for classic rebuilds, performance upgrades, and preventive maintenance.
  • Perfect fitment across air-cooled and modern Porsche models.
  • Restores original power delivery, efficiency, and reliability.

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