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Crankcase Parts
Fits:
Porsche Cayenne 955 3.2L 2004-05
Porsche Cayenne 957 3.6L 2008-10
Porsche Cayenne 958 3.6L 2011>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510121500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche Cayenne 955 3.2L 2004-05
Porsche Cayenne 957 3.6L 2008-10
Porsche Cayenne 958 3.6L 2011>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510121500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche Cayenne 955 3.2L 2004-06
Porsche Cayenne 957 3.0L DIESEL 2009-10
Porsche Cayenne 958 3.0L DIESEL 2011
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0119034
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
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Crankcase Sealing Plug (Core Plug) A16
Sold each
Restore the integrity of your Porsche engine with this OE
Match Crankcase Sealing Plug (Core Plug) A16. This precision-engineered sealing plug provides a secure seal within the
crankcase, helping to prevent oil leaks and maintain the integrity of the
engine block.
Fits:
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Diagram ref no 3
Core plugs play a vital role in sealing machined openings within the engine during manufacture. Over time, corrosion, engine heat and age can cause these plugs to deteriorate, making replacement essential during engine repairs or rebuilds. This OE Match component offers the correct dimensions and fit for dependable sealing and long-term reliability.
Whether you're rebuilding an engine, repairing an oil leak or carrying out preventative maintenance, this OE Match crankcase sealing plug provides a reliable OE-quality solution.
What Does the Crankcase Sealing Plug Do?
The crankcase sealing plug closes a machined opening within the engine block or crankcase.
Its primary functions include:
- Sealing casting and machining openings within the engine.
- Preventing engine oil leaks.
- Maintaining crankcase integrity.
- Helping protect the engine against dirt and moisture ingress.
- Supporting long-term engine reliability.
- Providing a secure, leak-free seal under normal operating conditions.
Although simple in design, the sealing plug is essential for maintaining a properly sealed engine.
Why Does the Crankcase Sealing Plug Fail?
Over time, sealing plugs are exposed to harsh operating conditions.
Common causes of failure include:
- Corrosion caused by moisture and coolant contamination.
- Age-related deterioration.
- Heat cycling causing material fatigue.
- Mechanical damage during engine repairs.
- Incorrect installation.
- Wear associated with high-mileage engines.
A failing core plug can lead to oil leaks, contamination and unnecessary engine repairs if left unattended.
When Should It Be Replaced?
Replacement is recommended when:
- An oil leak is traced to the sealing plug.
- The original plug shows corrosion or damage.
- Carrying out a complete engine rebuild.
- The crankcase has been dismantled.
- Performing preventative maintenance on a high-mileage engine.
- Replacing other crankcase sealing components.
Replacing ageing core plugs during engine work helps avoid future leaks and reduces the likelihood of repeat labour costs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
N0119034
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L (engines 022Y)
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95511076500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L (engines 022Y)
Click 'Zoom in' for large parts diagram.
Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95511076500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L 2004-06
M >> BFD 20318
Click 'Zoom in' for large parts diagram.
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510108500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L 2004-06
M >> BFD 20318
Diagram ref no 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510108500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
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12 Month Warranty
Worldwide Delivery
The OE Match Crankshaft Oil Seal, 48 x 10mm is a premium-quality replacement engine sealing component designed to prevent engine oil from escaping around the crankshaft while protecting the engine from external contaminants. Manufactured to OE specifications for fit, sealing performance and durability, this precision-engineered oil seal ensures reliable lubrication retention and helps maintain the integrity of the engine throughout its operating life.
Fits:- Porsche 955 Cayenne 3.2L V6 2004-06 (M >> BFD 20318)
Diagram Ref No 15
Manufactured from high-performance oil-resistant fluoroelastomer (FKM) rubber with a precision-moulded sealing lip and reinforced metal outer casing, the seal is engineered to withstand continuous exposure to engine oil, high rotational speeds, elevated temperatures and repeated thermal cycling. Designed for direct OE-style installation, it provides a secure, leak-free seal and is ideal for engine rebuilds, crankshaft servicing and preventative maintenance.
What This Product Does:
- Creates a leak-free seal around the crankshaft.
- Prevents engine oil from escaping the crankshaft housing.
- Protects the engine from dust, dirt and moisture ingress.
- Maintains correct engine oil pressure and lubrication.
- Supports reliable engine operation.
- Helps protect surrounding engine components from oil contamination.
- Restores factory sealing performance.
- Forms an essential part of the engine lubrication system.
Symptoms Of Wear Or Failure:
- Engine oil leaking from the front or rear of the engine.
- Oil residue around the crankshaft area.
- Oil spots beneath the vehicle.
- Low engine oil level requiring frequent topping up.
- Burning oil smell caused by oil contacting hot engine components.
- Oil contamination of the timing belt, auxiliary belt or flywheel/clutch area (depending on seal location).Visible cracking or hardening of the seal.
- Excessive oil consumption due to leakage.
- Engine bay contamination.
- Premature wear of nearby components caused by oil leaks.
Why Replacement Matters:
- The crankshaft oil seal operates under demanding conditions, continually sealing against a rotating crankshaft while exposed to engine oil, heat, pressure and vibration. Over time, the sealing lip naturally wears and the rubber material can harden, shrink or crack, reducing its ability to maintain an effective seal.
- A leaking crankshaft oil seal can result in progressive oil loss, reduced engine lubrication and contamination of surrounding components. Depending on its location, leaking oil may damage drive belts, the clutch assembly or other engine components, increasing repair costs and reducing engine reliability.
- Replacing a worn or damaged seal restores the integrity of the engine lubrication system and helps prevent costly oil leaks. The OE Match Crankshaft Oil Seal, 48 x 10mm is manufactured to OE standards using premium oil-resistant materials, providing factory-style fitment, excellent sealing performance and long-lasting durability, ensuring the protection, reliability and performance expected from your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510108500
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L 2004-06
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510115102
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2L 2004-06
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510115102
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 955 Cayenne 3.2ltr - 2003 to 2006 (2 sets per engine required)
Porsche 957 Cayenne 3.6ltr - 2007 to 2010 (1 set per engine required)
Porsche 958 Cayenne 3.6ltr - 2010 to 2018 (1 set per engine required)
For engine codes
955 - 055Y
957 - 5501
958 - 5502 / CEYA
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510263501
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
Shop Securely
12 Month Warranty
Worldwide Delivery
Precision Crankcase Parts – Strength, Balance, and Reliability for Porsche Engines
The crankcase forms the core of every Porsche engine, housing key rotating components such as the crankshaft, bearings, and connecting rods. It provides structural rigidity, oil containment, and precise alignment for the engine’s moving parts — making it critical to both performance and longevity.
At Design911, we offer a wide range of precision-engineered crankcase components, including bearing shells, seals, breather valves, dowels, plugs, and fasteners, all manufactured to exacting tolerances. Each part is crafted from high-strength, heat-resistant materials to ensure lasting durability and performance under the most demanding driving conditions.
Whether you’re restoring an air-cooled 911 or maintaining a modern 992, our manufacturer-quality crankcase parts ensure perfect fitment, oil-tight sealing, and reliable performance for years to come.
What Do Crankcase Parts Do?
Crankcase components perform vital structural and lubrication roles within the engine, protecting internal parts and maintaining pressure balance.
Core Functions:
- House and support the crankshaft, connecting rods, and bearings.
- Contain and distribute oil to lubricate moving components.
- Maintain structural rigidity to prevent vibration and misalignment.
- Control crankcase ventilation to reduce oil contamination and pressure build-up.
In performance and classic Porsche engines alike, the crankcase ensures stability, smooth rotation, and reliable oil management — key to consistent power and reduced wear.
Why Do Crankcase Parts Fail?
Over time, crankcase components can degrade due to heat cycles, vibration, oil contamination, and mechanical fatigue. When neglected, these failures can lead to oil leaks, pressure imbalance, and even catastrophic engine damage.
Common Causes of Failure Include:
- Oil seal wear causing leaks and pressure loss.
- Bearing fatigue from prolonged high load or low oil pressure.
- Warped surfaces due to overheating or corrosion.
- Clogged breather valves causing pressure build-up and oil blow-by.
- Fastener fatigue leading to structural loosening or vibration.
Replacing worn crankcase parts during an engine rebuild or maintenance interval is essential to preserve oil control, alignment, and crankshaft integrity.
Why Replace with Precision-Engineered Crankcase Parts?
High-quality crankcase components ensure your Porsche engine retains its strength, sealing capability, and precise alignment — essential for performance, reliability, and longevity.
Key Benefits:
- Restores internal alignment for smooth crankshaft rotation.
- Prevents oil leaks and pressure loss, maintaining engine performance.
- Improves lubrication control and bearing life.
- Reduces vibration and noise caused by worn or loose components.
- Crafted from corrosion- and heat-resistant materials for lasting strength.
- Perfect fitment and tolerance for air-cooled and water-cooled Porsche engines.
Engineers and restorers trust precision crankcase parts to maintain Porsche’s legendary reliability and mechanical balance — whether on the road or the track.
Highlights:
- Comprehensive range of crankcase seals, bearings, bolts, and breather components.
- Precision-machined parts designed for high-load, high-temperature performance.
- Manufacturer-quality materials and tolerances.
- Perfect for classic engine restorations and high-performance rebuilds.
- Improves oil management, structural rigidity, and reliability.
- Compatible with air-cooled and modern Porsche engine architectures.
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Oil System Parts
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Fuel System Parts
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Gaskets & Sets
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Belts / Tensioners / Rollers
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Chains & Tensioners
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Engine Bearings / Shells
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Engine Valves / Guides / Springs
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Engine Bolts / Studs
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Engine Mounts
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Engine Cylinders / Liners / Pistons
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Connecting Rod
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Cylinder Head / Camshaft Carrier
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Crankshaft & Parts
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Air Intake & Injection
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Specialist Tools
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