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Porsche > Cayman 987C / 981C (2005-2016) > Engine Rebuild Parts >

Belts / Tensioners / Rollers

Belts / Tensioners / Rollers

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DISPLAYING 1 to 16 (of 49 products)
1 2 3 4
Drive Belt Tensioning Roller Lever. Porsche 991 / Boxster 981 / Cayman 981C - 9A110221101, 9A210221100, 9A110221200, 99907357901, 94810283900, 0PB903308, PAF008343
4
Drive Belt Tensioning Roller Lever. Porsche 991 / Boxster 981 / Cayman 981C
9A110221101KIT
Product Information
Product Information
Drive Belt Tensioning Roller Lever. Comes complete with roller, bolt and protection cap.

porsche

Fits:
Porsche 981 Boxster 2012>>
Porsche 981C Cayman 2014>>
Porsche 991 Carrera 2012>>
Porsche 991 Turbo 2014>>
Porsche 991 GT3 2014>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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Related, superseded, cross reference or alternative numbers for comparison.

9A110221101KIT
9A110221101
9A210221100
9A110221200
99907357901
94810283900
0PB903308
PAF008343

The product you are viewing cross references to these numbers
Full Pulley & Belt Kit - Tensioner, Bracket, Pulley, Drive Belt & Mounting Bolts - for Porsche 987-2 Boxster & Cayman 2009-2012 - 9A110221100, 9A110221101, 9A210221100, 9A110221200, 99907357901, 94810283900, 94810226100, 99907341101, 9A700803500, 99907324609, 99907324602, 99907341201, 9A110221601, 0PB903308, PAF008361, PAF008362, 0PB903317
2
Full Pulley & Belt Kit - Tensioner, Bracket, Pulley, Drive Belt & Mounting Bolts - for Porsche 987-2 Boxster & Cayman 2009-2012
PULLEYKIT987-2
Product Information
Product Information

Full Pulley & Belt Kit – Tensioner, Bracket, Pulley, Drive Belt & Mounting Bolts – Manual & PDK
This kit includes a replacement hydraulic belt tensioner, a new bracket, pulley, and drive belt, and is compatible with 2.9L and 3.4L S models with either a manual or PDK transmission (option codes 480 / 250). 

Maintain reliable auxiliary drive performance with this complete Full Pulley & Belt Kit for Porsche 987.2 Boxster and Cayman models from 2009 to 2012, suitable for both Manual and PDK gearbox vehicles.

Fits:

  • Porsche Boxster 987 MKII 2.9L 2009-12
  • Porsche Boxster S 987 MKII 3.4L 2009-12
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12

Designed as a comprehensive preventative maintenance and service solution, this kit includes the essential tensioner, bracket, pulley, drive belt, and mounting bolts required to restore smooth accessory drive operation, maintain correct belt tension, and reduce the risk of pulley or belt-related failures.

Kit Contents:
1x OE Match Tensioner Bracket & Pulley 
1x Gates Hydraulic Tensioner Element
1x Dayco Drive Belt 
1x Original Porsche M8 x 60 Bolt for Tensioner Bracket 
1x Original Porsche M8 x 33-10.0 Bolt for Tensioner Element 
1x Original Porsche M8 x 26 Bolt for Tensioner Element 

The auxiliary drive system on the Porsche 987.2 engine is continuously exposed to heat cycles, vibration, and mechanical load. Over time, tensioners, pulleys, brackets, and drive belts can wear or weaken, potentially causing belt squeal, pulley noise, belt slip, or reduced accessory performance.

Replacing all related components together helps ensure long-term reliability while maintaining smooth engine operation and protecting critical engine-driven systems. Including new mounting hardware also helps guarantee secure installation and correct fitment during servicing.

This complete service kit is ideal for routine maintenance, preventative servicing, engine refresh projects, or resolving common issues such as noisy pulleys, worn tensioners, or auxiliary belt vibration on Porsche 987.2 Boxster and Cayman models.

Engineered for precise fitment and dependable operation, this kit helps maintain smooth auxiliary drive performance for everyday road use and spirited driving applications alike.

Perfect for Porsche owners, independent specialists, and workshops maintaining Porsche Boxster and Cayman models to OEM standards.

Key Features

• Complete pulley and drive belt service kit
• Includes tensioner, bracket, pulley, drive belt, and mounting bolts
• Designed for Porsche 987.2 Boxster and Cayman models
• Suitable for Manual and PDK gearbox vehicles
• Suitable for 2009-2012 models
• Helps restore correct belt tension and alignment
• Reduces risk of belt slip and pulley failure
• Helps eliminate pulley noise and belt squeal
• Includes new mounting hardware for secure installation
• Supports reliable accessory drive performance
• OEM-style fitment and functionality
• Suitable for road and fast road applications

Why Replace the Pulley & Belt System?

The auxiliary drive system powers essential engine accessories and operates continuously under heat, vibration, and mechanical load.

Worn pulleys, tensioners, brackets, or belts can lead to:
• Belt squeal or chirping noises
• Inconsistent belt tension
• Pulley bearing wear or failure
• Premature belt wear
• Reduced accessory performance
• Potential auxiliary drive failure

Replacing all related components together helps restore smooth operation and improve long-term reliability.

Complete Preventative Maintenance Solution

This full pulley and belt kit provides a convenient all-in-one solution for servicing the auxiliary drive system on Porsche 987.2 Boxster and Cayman models.

Benefits include:
• Simplified servicing
• Correct component compatibility
• Reduced installation downtime
• Improved long-term reliability
• Professional workshop-level maintenance support

Ideal for preventative maintenance and Porsche engine servicing.

Designed for Porsche 987.2 Boxster & Cayman Models

The Porsche 987.2 platform delivers exceptional balance, refinement, and driving enjoyment, making regular auxiliary drive maintenance essential for long-term reliability and smooth operation.

This kit helps support:
• Reliable accessory drive operation
• Consistent belt performance
• Smooth pulley function
• Reduced mechanical noise
• Proper belt alignment and tension control

Perfect for daily driving, touring, and performance-focused road use.

OEM-Style Fitment & Reliability

Designed for precise fitment and dependable operation, this kit integrates with the factory auxiliary drive system to maintain correct belt routing and smooth operation.

Advantages include:
• OEM-style installation
• Reliable belt tracking
• Smooth pulley rotation
• Consistent tension control
• Reduced vibration and operating noise



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

PULLEYKIT987-2
9A110221100
9A110221101
9A210221100
9A110221200
99907357901
94810283900
94810226100
99907341101
9A700803500
99907324609
99907324602
99907341201
9A110221601
0PB903308
PAF008361
PAF008362
0PB903317

The product you are viewing cross references to these numbers
Full Pulley & Belt Kit - Tensioner, Brackets, Pulleys, Drive Belt & Mounting Bolts - for Porsche 981 Boxster & Cayman 2012-2016 - 9A110221800, 0PB903137A, 9A110221101, 9A210221100, 9A110221200, 99907357901, 94810283900, 0PB903308, PAF008343, 94810226100, 0PB903317, 99907324609, 99907324602, PAF008362, 99907341201, PAF008361, 9A110203001, 0PB145172, 99907341101, 9A700803500, 03G145291, 90038504801, PAF008128, 90038509101, PAF008152
1
Full Pulley & Belt Kit - Tensioner, Brackets, Pulleys, Drive Belt & Mounting Bolts - for Porsche 981 Boxster & Cayman 2012-2016
PULLEYKIT981
Product Information
Product Information
This kit includes a replacement hydraulic belt tensioner, pulley and bracket, upper idler pulley and bracket, drive belt, and new mounting bolts. It is compatible with 2.7L and 3.4L S models with either a manual or PDK transmission (option codes 480 / 250). 

Fits:
Porsche 981 Boxster 2.7L 2012-16
Porsche 981 Boxster S 3.4L 2012-16
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 GT4 3.8L 2016

Kit Contents:
1x OE Match Tensioner Bracket & Pulley 
1x OE Match Upper Idler Pulley & Bracket 
1x Gates Hydraulic Tensioner Element 
1x Gates Drive Belt
2x Original Porsche M8 x 60 Bolt for Upper Idler Pulley Bracket 
1x Original Porsche M6 x 30 Bolt for Upper Idler Pulley Bracket 
1x Original Porsche M10 x 30 Bolt for Tensioner Pulley 
1x Original Porsche M8 x 60 Bolt for Tensioner Console 
1x Original Porsche M8 x 33-10.9 Bolt for Tensioner Element 
1x Original Porsche M8 x 26 Bolt for Tensioner Element 


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

PULLEYKIT981
9A110221800
0PB903137A
9A110221101
9A210221100
9A110221200
99907357901
94810283900
0PB903308
PAF008343
94810226100
0PB903317
99907324609
99907324602
PAF008362
99907341201
PAF008361
9A110203001
0PB145172
99907341101
9A700803500
03G145291
90038504801
PAF008128
90038509101
PAF008152

The product you are viewing cross references to these numbers
Full Pulley & Belt Kit - Tensioner, Idlers & Drive Belt - for Porsche 987-1 Boxster & Cayman (Manual) 2005-2008 - 99710226000, 99710211700, 99610236550, 99907204109, 99907205901, 99710211800, 99710211900, 99610212754, 99610215166, 99610215168
2
Full Pulley & Belt Kit - Tensioner, Idlers & Drive Belt - for Porsche 987-1 Boxster & Cayman (Manual) 2005-2008
PULLEYKIT987-MAN
Product Information
Product Information

Full Pulley & Belt Kit – Tensioner, Idlers & Drive Belt – Manual
This kit includes a replacement tensioner element, all three pulleys, a new drive belt, and is suitable for models with a manual transmission (option code 480 or 481).

Maintain reliable auxiliary drive performance with this complete Full Pulley & Belt Kit for Porsche 987.1 Boxster and Cayman Manual models from 2005 to 2008.

Fits:

  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08

Designed as a comprehensive preventative maintenance and service solution, this kit includes the essential tensioner, idler pulleys, and drive belt components required to restore smooth accessory drive operation, maintain correct belt tension, and reduce the risk of pulley or belt-related failures.

Kit Contents:
1x OE Match Tensioner Element 
1x OE Match Tensioner Pulley Incl. Nut, Bolt, & Dust Cap
1x OE Match Upper Idler Pulley & Cover 
1x OE Match Lower Idler Pulley & Cover 
1x OE Match Drive Belt

The auxiliary drive system on the Porsche 987 engine is continuously exposed to heat cycles, vibration, and mechanical load. Over time, tensioners, idler pulleys, and drive belts can wear, leading to pulley noise, belt slip, bearing failure, or reduced accessory performance.

Replacing all related components together helps ensure long-term reliability while maintaining smooth engine operation and protecting critical engine-driven accessories.

This complete service kit is ideal for routine maintenance, preventative servicing, engine refresh projects, or resolving common issues such as belt squeal, noisy pulleys, or worn tensioner operation on Porsche 987.1 Boxster and Cayman Manual models.

Engineered for precise fitment and dependable operation, this kit helps maintain smooth auxiliary drive performance for everyday road use and spirited driving alike.

Perfect for Porsche owners, independent specialists, and workshops maintaining Porsche Boxster and Cayman models to OEM standards.

Key Features

• Full pulley and drive belt service kit
• Designed for Porsche 987.1 Boxster and Cayman Manual models
• Suitable for 2005-2008 vehicles
• Includes tensioner, idler pulleys, and drive belt
• Complete auxiliary drive system maintenance solution
• Helps restore correct belt tension and alignment
• Reduces risk of belt slip and pulley failure
• Helps eliminate pulley noise and belt squeal
• Supports reliable accessory drive performance
• OEM-style fitment and functionality
• Suitable for road and fast road applications

Why Replace the Pulley & Belt System?

The auxiliary drive system powers critical engine accessories and is constantly exposed to heat, vibration, and mechanical load.

Worn pulleys, tensioners, or belts can cause:
• Belt squeal or chirping noises
• Inconsistent belt tension
• Pulley bearing noise
• Premature belt wear
• Reduced accessory performance
• Potential auxiliary drive failure

Replacing all related components together helps restore smooth operation and improve long-term reliability.

Complete Preventative Maintenance Solution

This full pulley and belt kit provides a convenient all-in-one solution for servicing the auxiliary drive system on Porsche 987 Boxster and Cayman models.

Benefits include:
• Simplified servicing
• Correct component compatibility
• Reduced installation downtime
• Improved long-term reliability
• Professional workshop-level maintenance support

Ideal for preventative maintenance and Porsche engine servicing.

Designed for Porsche 987 Boxster & Cayman Models

The Porsche 987 platform delivers exceptional balance, performance, and driving enjoyment, making regular auxiliary drive maintenance essential for long-term reliability and smooth operation.

This kit helps support:
• Reliable accessory drive operation
• Consistent belt performance
• Smooth pulley function
• Reduced mechanical noise
• Proper belt alignment and tension control

Perfect for daily driving, touring, and performance-focused road use.

OEM-Style Fitment & Reliability

Designed for precise fitment and dependable operation, this kit integrates with the factory auxiliary drive system to maintain correct belt routing and smooth operation.

Advantages include:
• OEM-style installation
• Reliable belt tracking
• Smooth pulley rotation
• Consistent tension control
• Reduced vibration and operating noise



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

PULLEYKIT987-MAN
99710226000
99710211700
99610236550
99907204109
99907205901
99710211800
99710211900
99610212754
99610215166
99610215168

The product you are viewing cross references to these numbers
Full Pulley & Belt Kit - Tensioner, Idlers & Drive Belt - for Porsche 987-1 Boxster & Cayman (Tiptronic) 2005-2008 - 99710226000, 99610236550, 99907204109, 99907205901, 99610211757, 99610211856, 99610212553, 99610211958, 99610212754, 99610215166, 99610215168
2
Full Pulley & Belt Kit - Tensioner, Idlers & Drive Belt - for Porsche 987-1 Boxster & Cayman (Tiptronic) 2005-2008
PULLEYKIT987-TIP
Product Information
Product Information

Full Pulley & Belt Kit – Tensioner, Idlers & Drive Belt – Tiptronic
This kit includes a replacement tensioner element, all three pulleys, a new drive belt, and is suitable for models with a Tiptronic transmission (option code 249).

Maintain reliable auxiliary drive performance with this complete Full Pulley & Belt Kit for Porsche 987.1 Boxster and Cayman Tiptronic models from 2005 to 2008.

Fits:

  • Porsche Boxster 987 2.7L 2005-08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08

Designed as a comprehensive preventative maintenance and service solution, this kit includes the essential tensioner, idler pulleys, and drive belt components required to restore smooth accessory drive operation, maintain correct belt tension, and reduce the risk of pulley or belt-related failures.

Kit Contents:
1x OE Match Tensioner Element 
1x OE Match Tensioner Pulley Incl. Nut, Bolt, & Dust Cap
1x OE Match Upper Idler Pulley & Cover 
1x OE Match Lower Idler Pulley & Cover 
1x OE Match Drive Belt

The auxiliary drive system on the Porsche 987 engine is continuously exposed to heat cycles, vibration, and mechanical load. Over time, tensioners, idler pulleys, and drive belts can wear, leading to pulley noise, belt slip, bearing failure, or reduced accessory performance.

Replacing all related components together helps ensure long-term reliability while maintaining smooth engine operation and protecting critical engine-driven accessories.

This complete service kit is ideal for routine maintenance, preventative servicing, engine refresh projects, or resolving common issues such as belt squeal, noisy pulleys, or worn tensioner operation on Porsche 987.1 Boxster and Cayman Tiptronic models.

Engineered for precise fitment and dependable operation, this kit helps maintain smooth auxiliary drive performance for everyday road use and spirited driving alike.

Perfect for Porsche owners, independent specialists, and workshops maintaining Porsche Boxster and Cayman models to OEM standards.

Key Features

• Full pulley and drive belt service kit
• Designed for Porsche 987.1 Boxster and Cayman Tiptronic models
• Suitable for 2005-2008 vehicles
• Includes tensioner, idler pulleys, and drive belt
• Complete auxiliary drive system maintenance solution
• Helps restore correct belt tension and alignment
• Reduces risk of belt slip and pulley failure
• Helps eliminate pulley noise and belt squeal
• Supports reliable accessory drive performance
• OEM-style fitment and functionality
• Suitable for road and fast road applications

Why Replace the Pulley & Belt System?

The auxiliary drive system powers critical engine accessories and is constantly exposed to heat, vibration, and mechanical load.

Worn pulleys, tensioners, or belts can cause:
• Belt squeal or chirping noises
• Inconsistent belt tension
• Pulley bearing noise
• Premature belt wear
• Reduced accessory performance
• Potential auxiliary drive failure

Replacing all related components together helps restore smooth operation and improve long-term reliability.

Complete Preventative Maintenance Solution

This full pulley and belt kit provides a convenient all-in-one solution for servicing the auxiliary drive system on Porsche 987 Boxster and Cayman models.

Benefits include:
• Simplified servicing
• Correct component compatibility
• Reduced installation downtime
• Improved long-term reliability
• Professional workshop-level maintenance support

Ideal for preventative maintenance and Porsche engine servicing.

Designed for Porsche 987 Boxster & Cayman Models

The Porsche 987 platform delivers exceptional balance, performance, and driving enjoyment, making regular auxiliary drive maintenance essential for long-term reliability and smooth operation.

This kit helps support:
• Reliable accessory drive operation
• Consistent belt performance
• Smooth pulley function
• Reduced mechanical noise
• Proper belt alignment and tension control

Perfect for daily driving, touring, and performance-focused road use.

OEM-Style Fitment & Reliability

Designed for precise fitment and dependable operation, this kit integrates with the factory auxiliary drive system to maintain correct belt routing and smooth operation.

Advantages include:
• OEM-style installation
• Reliable belt tracking
• Smooth pulley rotation
• Consistent tension control
• Reduced vibration and operating noise



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

PULLEYKIT987-TIP
99710226000
99610236550
99907204109
99907205901
99610211757
99610211856
99610212553
99610211958
99610212754
99610215166
99610215168

The product you are viewing cross references to these numbers
Underdrive crankshaft pulley (with A/C) for Porsche 996 / 997 / 986 Boxster - 99610211562, 99610511563 - AP987130, AP-987-130
1
Underdrive crankshaft pulley (with A/C) for Porsche 996 / 997 / 986 Boxster
3609001601-AC
Product Information
Product Information
Under drive crankshaft pulley (with A/C) kit. Includes pulley, drive belt and new bolt. Pulley is made from 6061-T6 aluminum, Improve horsepower and torque while reducing parasitic drag from the alternator, power steering pump and water pump.

Pulley outer diameter: 123mm (measured from ribs to ribs)

FITMENT GUIDE:
Porsche 986 Boxster:
1997-1999 2.5L H6
2000-2004 2.7L H6
2000-2004 S 3.2L H6
986 Spec Boxster Legal

Porsche 987 Boxster / Cayman
2005- 2.7L H6
2005-2006 3.2L H6
2007- 3.4L H6

Porsche 996 / 997
1999 3.4L H6 NA
2001-2004 3.6L H6 NA
2005- 3.6L H6 NA

Will not work on 3.8L (S) or Turbo models

For INSTALLATION GUIDE CLICK HERE

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

3609001601-AC
99610211562
99610511563

The product you are viewing cross references to these numbers
Drive belt deflection roller Porsche 996 / Boxster 986 / Boxster 987 / 997 - 99610211856
2
Drive belt deflection roller Porsche 996 / Boxster 986 / Boxster 987 / 997
Special Order item
99610211856
Product Information
Product Information
Drive belt deflection roller.

porsche

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
Porsche 986 Boxster 2.5L 2.7L / 3.2L 1997-04 Manual & Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic gearbox

Click 'Zoom in' for large parts diagram.
Diagram ref No 15

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

99610211856
99610211856

The product you are viewing cross references to these numbers
Drive belt deflection roller Porsche 996 / Boxster 986 / Boxster 987 / 997 - 99610211856, 99610211850, 99610211852, 99610211853, 99610211855, 99610291853
4
Drive belt deflection roller Porsche 996 / Boxster 986 / Boxster 987 / 997
99610211856/2
Product Information
Product Information
Drive belt deflection roller.

oematch

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
Porsche 986 Boxster 2.5L 2.7L / 3.2L 1997-04 Manual & Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic gearbox

Click 'Zoom in' for large parts diagram.
Diagram ref No 15

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

99610211856
99610211856
99610211850
99610211852
99610211853
99610211855
99610291853

The product you are viewing cross references to these numbers
Drive belt deflection roller Porsche 996 / Boxster 987 / Cayman 987C / 997 - 99710211900, 4149031111
4
Drive belt deflection roller Porsche 996 / Boxster 987 / Cayman 987C / 997
Special Order item
99710211900
Product Information
Product Information
Drive belt deflection roller.

porsche

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 6-speed Manual transmission
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08 Manual transmission
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Manual transmission
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Manual transmission

Click 'Zoom in' for large parts diagram.
Diagram ref No 12

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

99710211900
99710211900
4149031111

The product you are viewing cross references to these numbers
Drive belt deflection roller. Porsche 996 / Boxster 986 / Boxster 987 / Cayman 987C / 997 - 99610211958, 99610211957
4
Drive belt deflection roller. Porsche 996 / Boxster 986 / Boxster 987 / Cayman 987C / 997
Special Order item
99610211958
Product Information
Product Information
Drive belt deflection roller.

porsche

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997-04 Manual & Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L /3.4L 2005-08 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic

Click 'Zoom in' for large parts diagram.
Diagram ref No 12

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

99610211958
99610211958
99610211957

The product you are viewing cross references to these numbers
Drive belt deflection roller. Porsche 996 / Boxster 986 / Boxster 987 / Cayman 987C / 997 - 99610211952, 99610211954, 99610211955, 99610211957, 99610211958, 99610291955 - 10952
6
Drive belt deflection roller. Porsche 996 / Boxster 986 / Boxster 987 / Cayman 987C / 997
99610211958/1
Product Information
Product Information
Drive belt deflection roller.
Also referred to as a relay roller or deflection roller, responsible for guiding and maintaining proper routing and tension of the accessory drive belt system.

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997 - 2005 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005 - 2008 Tiptronic gearbox
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2004 Manual & Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L /3.4L 2005 - 2008 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005 - 2008 Tiptronic

Diagram ref No 12

The idler pulley supports the accessory drive belt, helping to:
•  Maintain proper belt routing and tension, preventing slipping and reducing premature wear.
•  Guide the belt around engine accessories such as the alternator, power steering pump, A/C compressor, and water pump.
•  Ensure smooth operation of components driven by the belt for optimal engine performance.
If the idler pulley wears out or the bearing fails, you may hear squealing, chirping, or grinding noises, see uneven belt wear, or experience belt misalignment - indicators it’s time for replacement.

A worn or failing idler pulley can cause the drive belt to slip, misalign, or break, which can in turn disrupt power to critical engine accessories. Symptoms include belt noise, squealing, or loss of accessory function (e.g., A/C, alternator charging), potentially leading to more costly repairs if ignored. Replacing it with an OE Match pulley ensures proper belt tension and routing, helping keep your engine’s accessory systems functioning smoothly.

Replace the idler pulley if you notice any of the following:
•  Squealing, chirping, or grinding noises from the belt area
•  Visible belt misalignment or excessive wear
•  Pulley bearing play or rough rotation to the touch
•  Cracks or deterioration of the pulley surface

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

99610211958
99610211952
99610211954
99610211955
99610211957
99610211958
99610291955

The product you are viewing cross references to these numbers
Drive belt deflection roller. Porsche 996 / Boxster 987 / 997 - 99710211800, 4149031110
2
Drive belt deflection roller. Porsche 996 / Boxster 987 / 997
Special Order item
99710211800
Product Information
Product Information
Drive belt deflection roller.

porsche

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 6-speed Manual transmission
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08 Manual transmission
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Manual transmission
Porsche 987C.1 Cayman 987C 2.7L / 3.4L 2005-08 Manual transmission

Click 'Zoom in' for large parts diagram.
Diagram ref no 15

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

99710211800
99710211800
4149031110

The product you are viewing cross references to these numbers
Drive belt deflection roller. Porsche 996 / Boxster 987 / 997 - 99710211800, 4149031110 - 34541
2
Drive belt deflection roller. Porsche 996 / Boxster 987 / 997
99710211800/1
Product Information
Product Information
Drive belt deflection roller.
This tensioner (or idler) pulley is designed for Porsche 911 (996/997) and Boxster/Cayman vehicles. It supports the serpentine/drive belt system, ensuring smooth, stable rotation and correct belt alignment. It helps maintain proper tension, reduces noise, and protects engine accessories from excessive stress. Built to original Porsche standards and engineered for precise fitment and durability.

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 6-speed Manual transmission
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08 Manual transmission
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Manual transmission
Porsche 987C.1 Cayman 987C 2.7L / 3.4L 2005-08 Manual transmission

Diagram ref no 15

Ideal replacement when the original pulley shows signs of wear, bearing noise, belt misalignment or visible belt damage - restoring accessory-drive reliability and avoiding secondary damage from belt failure.

The idler pulley plays a critical role in your accessory belt drive, maintaining the correct path and tension of the belt that powers many engine-mounted systems. When the pulley bearing deteriorates, or the surface becomes worn or grooved, the belt can slip, make noise, or even break—potentially causing loss of alternator, AC compressor or power-steering function. By replacing this component proactively with a quality OE-Match unit, you safeguard those systems and maintain proper engine accessory operation.

When and why to replace:
• Audible bearing noise or rumble coming from the pulley/belt area.
• Visible belt wear, glazing, fraying or mis-tracking across the pulley surface.
• Occasional belt slippage or accessory drive belt squeal on start-up or load.
• Accessory drive servicing (belt replacement, tensioner replacement) where it makes sense to fit the pulley at the same time.
• Higher-mileage vehicle where original pulley may have been in service for many years and bears may be near end-of-life.

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

99710211800
99710211800
4149031110

The product you are viewing cross references to these numbers
Drive belt deflection roller. Porsche 996 / Boxster 987 / Cayman 987C / 997 - 99710211900
2
Drive belt deflection roller. Porsche 996 / Boxster 987 / Cayman 987C / 997
99710211900/1
Product Information
Product Information
Drive belt deflection roller.
A direct-fit idler/deflection pulley for the auxiliary (serpentine) drive belt. Built to OE geometry, it guides the belt path, stabilises belt tracking, and helps maintain correct wrap on the alternator, A/C compressor and power-steering/water pump pulleys.

Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 6-speed Manual transmission
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08 Manual transmission
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Manual transmission
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Manual transmission

Diagram ref No 12

The deflection roller maintains smooth, stable tension in the auxiliary belt system. It helps guide the belt precisely over pulleys, reduces vibration, and ensures efficient power delivery to engine accessories such as the alternator, A/C compressor, and power steering pump. Built with OE-spec bearings, it delivers quiet operation and long-lasting reliability under high-speed, high-load conditions.

Over time, the bearing inside the roller can wear, dry out, or seize due to constant load and heat exposure. A failing roller may cause belt noise, vibration, or premature belt wear, potentially leading to accessory drive failure.

Replace the deflection roller when:
• You hear squeaking, chirping, or grinding from the belt area
• The pulley feels rough or loose when rotated by hand
• During belt or tensioner replacement as preventive maintenance
• There are signs of belt misalignment or edge fraying

Installing a new deflection roller ensures correct belt tracking, quiet performance, and dependable accessory drive operation.

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

99710211900
99710211900

The product you are viewing cross references to these numbers
Drive belt idler pulley. Porsche 718 Boxster / 718 Cayman / 991 / 95B Macan - 0PB145257, 9A110203001SK, 9A110203001, 94610211730, 9A210223500, 03G145291
2
Drive belt idler pulley. Porsche 718 Boxster / 718 Cayman / 991 / 95B Macan
Special Order item
0PB145257
Product Information
Product Information
Drive belt idler pulley. D=70.

porsche

Fits:
Porsche 991.1 Carrera 3.4L / 3.8L 2011-16 (A104)
Porsche 991.2 Carrera 3.0L 2017-19
Porsche 991 Turbo 3.8L 2014-20
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017-21
Porsche 718 (982) Cayman 2017-21
Porsche 95B.1 Macan 3.0L / 3.6L 2013-18

Click 'Zoom in' for large parts diagram.
Diagram ref no 8

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

0PB145257
0PB145257
9A110203001SK
9A110203001
94610211730
9A210223500
03G145291

The product you are viewing cross references to these numbers
Drive belt idler pulley. Porsche 718 Boxster / 718 Cayman / 991 / 95B Macan - 0PB145257, 9A110203001SK, 9A110203001, 94610211730, 9A210223500, 03G145291, 102205
3
Drive belt idler pulley. Porsche 718 Boxster / 718 Cayman / 991 / 95B Macan
0PB145257/1
Product Information
Product Information
Drive belt idler pulley.
with bolt and protective cap.

oematch

Fits:
Porsche 991.1 Carrera 3.4L / 3.8L 2011-16 (A104)
Porsche 991.2 Carrera 3.0L 2017-19
Porsche 991 Turbo 3.8L 2014-20
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster 2017-21
Porsche 718 (982) Cayman 2017-21
Porsche 95B.1 Macan 3.0L / 3.6L 2013-18


Material: Plastic
Outer Diameter: 70 mm
Pulley Surface Width: 26 mm

Click 'Zoom in' for large parts diagram.
Diagram ref no 8



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

0PB145257
0PB145257
9A110203001SK
9A110203001
94610211730
9A210223500
03G145291
102205

The product you are viewing cross references to these numbers
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About Belts / Tensioners / Rollers

Engine Rebuild Belts, Tensioners & Rollers – Precision Timing for Reliable Porsche Performance

Engine rebuild belts, tensioners, and rollers are essential components in maintaining your Porsche’s precise engine timing and smooth operation. These parts work together to synchronise the camshaft and crankshaft, ensuring valves open and close at exactly the right time for optimal combustion. Over time, these components can wear or deteriorate, especially under high performance or extended use, making replacement vital during an engine rebuild or major service.

At Design911, we supply a full range of genuine and high-quality belts, tensioners, and rollers for various Porsche models including, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is designed for strength, accuracy, and long-lasting reliability — ensuring your rebuilt Porsche engine performs flawlessly mile after mile.

What Do Engine Belts, Tensioners & Rollers Do?

These components form the heart of the engine’s timing and auxiliary systems. They:

  • Drive key engine components, including the camshaft, alternator, and water pump.
  • Maintain accurate timing for optimal combustion and efficiency.
  • Reduce friction and noise through smooth roller and tensioner operation.
  • Ensure consistent belt tension to prevent slippage or premature wear.

Together, they guarantee your Porsche’s engine runs smoothly, efficiently, and reliably — whether cruising or driving at peak performance.

Why Do Belts, Tensioners & Rollers Fail?

Exposure to high temperatures, vibration, and constant motion causes natural wear over time. Common causes of failure include:

  • Aging rubber belts becoming brittle or cracked.
  • Worn bearings in rollers or tensioners leading to noise or vibration.
  • Loss of tension causing belt slippage or timing misalignment.
  • Contamination from oil or coolant degrading materials.
  • Extended maintenance intervals leading to unexpected failure.

Symptoms of failing components include squealing noises, poor engine performance, rough idle, or even timing belt failure, which can cause severe engine damage if ignored.

Why Replace Belts, Tensioners & Rollers During an Engine Rebuild?

Replacing these components during an engine rebuild ensures long-term reliability and eliminates the risk of future timing-related failures. A fresh set of belts, rollers, and tensioners restores precision, efficiency, and performance — protecting your investment.

Benefits of replacement include:

  • Restored precise timing and smooth operation.
  • Reduced risk of catastrophic engine failure.
  • Enhanced reliability and longevity of the rebuild.
  • Quieter, more efficient engine performance.

All components available from Design911 are made using premium-grade materials, precision bearings, and advanced heat-resistant compounds, ensuring maximum durability and performance in high-stress Porsche engines.

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