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Porsche // Cayman 987C / 981C (2005-2016) // Cayman 2.7L 987C 2006-08
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- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
The Porsche Cayenne 958 engine mounts play a crucial role in keeping the engine and transmission securely connected to the frame or sub-frame. They provide stable support while minimizing vibrations that could otherwise transfer into the cabin. Properly functioning engine mounts help maintain drivetrain alignment, ensuring smooth performance and preventing premature wear on other components. Price is each fits left or right side
Over time, engine mounts can wear out or deteriorate due to heat, stress, and age. When this happens, you may experience increased engine noise, excessive vibration, and noticeable engine movement — all signs that your mounts need replacement. Replacing worn mounts restores comfort, stability, and overall driving enjoyment.
Fits:
Porsche 958 Cayenne V6 3.6L TURBO / TURBO GTS / Bi-TURBO 2015-18
Engine code: CURA / CUR / CXZA / CXZ
Common Symptoms of Engine Mount Failure
- Excessive engine vibration
- Noticeable drivetrain vibration
- Uneven engine alignment or sagging
- Engine rocking or movement during gear changes
- Engine shifting or jerking when braking
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94637505833
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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
Position: center engine mount (the central mount that locates the engine fore/aft and resists torque).
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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
Replace the part when it has lost its ability to control engine movement and damp vibration. Typical triggers to replace the centre mount include:
- Hard clunk or bang on acceleration, deceleration or gear changes (engine shifting against chassis).
- Excessive vibration into the cabin, especially at idle or specific RPM bands.
- Visible damage — torn, separated rubber, oil-soaked or collapsed mount/bushing, or corrosion of mating faces.
Common issues & failure causes
- Rubber deterioration: age, heat cycling and mechanical fatigue cause the rubber to harden, crack or de-bond from the metal, reducing isolation and allowing increased engine movement.
- Fluid contamination: oil or coolant leaks accelerate rubber breakdown (softening or swelling), commonly seen on older engines where leaks occur.
- Mechanical shock / abuse: repeated hard launches, aggressive shifting or collisions can cause sudden mount failure or promote early fatigue.
- Bracket wear / corrosion: the bushing may be fine, but the aluminium bracket can crack, corrode, or the bushing may need pressing into a worn bracket — which is why some techs prefer replacing the full assembly.
This product supersedes Porsche's old part numbers:
- 98737502304
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98737502305
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 987 Boxster / S 2005-08
Porsche 987 Boxster / S 2009-12
Porsche 987C Cayman / S 2005-08
Porsche 987C Cayman / S 2009-12
This product supersedes Porsche's old part numbers:
- 98737525503
- 98737525505
Price is for each.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A137525701
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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
Our polyurethane bushes are ideal replacements for worn or damaged parts. Engine mount bushes are particularly prone to cracking of the rubber because of a large amount of voiding in the material to allow for excessive movement. For an insert only please use PFR57-521BLK.
OEM Part Number: 98737502305
OEM Part Number: 9A137502322
Fits:
Porsche Boxster 986 (1997-2004)
Porsche Boxster 987 (2005-2009)
Porsche Cayman 987C (2005 - 2009)
up to 2009 with engine codes M9625, M9626, M9720, M9721 & M9722
DIAGRAM REFERENCE: 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-520BLK
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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
Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987C.1 Cayman 2006-08
Click 'Zoom in' for large parts diagram.
Fits to no. 2 on the diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98737502305
The product you are viewing cross references to these numbers