Engine mounts


- 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
Engine mount bush insert kit. Porsche 987 gen 1 Boxster /Cayman
Fits:
Porsche 987.1 Boxster 2.7ltr - 2008 to 2008
Porsche 987.1 Boxster S 3.2/3.4ltr - 2008 to 2008
Porsche 987.1 Cayman 2.7ltr - 2006 to 2008
Porsche 987.1 Cayman S 3.4ltr - 2005 to 2008
Choose between three hardness levels:
1. Soft (60A) - Orange: For added performance and to restore and preserve your OEM mount with minimal noise, vibration and harshness (NVH)
2. Sport (70A) - Yellow: For tuned and sport-oriented performance street cars, with less noise, vibration and harshness (NVH) than track versions
3. Track (80A) - Black: For optimized performance on track and racecars where noise, vibration and harshness (NVH) is not a consideration
The OEM engine mount was designed for ride comfort and is prone to sagging and tearing but, above all, it is a detriment to performance. The empty voids in the bush allow for too much engine movement, resulting in sloppy handling, numbed responsiveness and imprecise shifting.
Racecars utilize a solid metal mount to mediate this but it is impractical for road use as it transfers extreme noise and vibration into the cabin.
So how do you achieve the benefits of a solid mount while retaining daily drivability? We offer the most effective and easy to install solution for the Porsche 987.1 Boxster and Cayman. The durable urethane rubber insert simply slips in to fill and fortify the empty voids of the OEM bush, preventing premature wear and undesirable engine movement, all while transmitting minimal added noise and vibration.
The result? Handling is taut and predictable, power delivery is immediate and smooth and gear changes are crisp and confident.
Installation can be completed in about 1.5-hours for the 987.
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Related, superseded, cross reference or alternative numbers for comparison.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 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 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S 3.4L 981 2013-16

PFR57-820 fits all models from 2009 onwards. For any models before this, please use PFR57-520.
OEM Part Number: 9A137504601
OEM Part Number: 9A137502322
Fits:
Porsche 987.2 Boxster 2009-2012
Porsche 987C.2 Cayman 2009-2012
Porsche 981 Boxster 2012-16
Porsche 981C Cayman 2014-2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-820
The product you are viewing cross references to these numbers





- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S 3.4L 981 2013-16

PFR57-821 fits all models from 2009 onwards. For any models before this, please use PFR57-521.
OEM Part Number: 9A137502322
OEM Part Number: 9A137504601
Fits:
Porsche 987.2 Boxster 2009-2012
Porsche 987C.2 Cayman 2009-2012
Porsche 981 Boxster 2012-16
Porsche 981C Cayman 2014-2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-821
The product you are viewing cross references to these numbers





- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster S 981 3.4L 2012-16
- Porsche Boxster Spyder 3.8L 2016
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S 3.4L 981 2013-16

PFR57-821BLK fits all models from 2009 onwards. For any models before this, please use PFR57-521BLK.
OEM Part Number: 9A137502322
OEM Part Number: 9A137504601
Fits:
Porsche 987.2 Boxster 2009-2012
Porsche 987C.2 Cayman 2009-2012
Porsche 981 Boxster 2012-16
Porsche 981C Cayman 2014-2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-821BLK
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

A polyurethane insert fits into these voids in the original mount.
For a complete bush please use PFR57-520.
OEM Part Number: 98737502305
Fits:
Porsche 986 Boxster (1997-2004)
Porsche 987 Boxster (2005-2012)
Porsche 987C Cayman (2005 - 2012)
For all 986/987 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.
PFR57-521
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

A polyurethane insert fits into these voids in the original mount.
For a complete bush please use PFR57-520BLK.
OEM Part Number: 98737502305
Fits:
Porsche 986 Boxster (1997-2004)
Porsche 987 Boxster (2005-2012)
Porsche 987C Cayman (2005 - 2012)
For all 986/987 up to 2009 with engine codes M9625, M9626, M9720, M9721 & M9722.
DIAGRAM REFERENCE: 20
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-521BLK
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 PFR57-521.
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.
PFR57-520
The product you are viewing cross references to these numbers



Enhance Your Porsche Performance with Engine Mounts: Technical Specifications and Benefits
Technical specifications of Performance Engine Mounts:
- Performance engine mounts are specialized mounts designed to improve the stability, control, and overall performance of a Porsche's engine.
- They are typically made from high-quality materials such as polyurethane or solid aluminum.
- Performance engine mounts feature a stiffer construction compared to standard mounts, reducing engine movement and enhancing rigidity.
- They come in various designs and options to fit different Porsche models and engine configurations.
- Performance engine mounts are available as aftermarket upgrades or standard replacements for Porsche vehicles.
Benefits of upgrading or replacing Performance Engine Mounts for your Porsche:
Improved power transfer: Performance engine mounts minimize engine movement during acceleration, ensuring more efficient power transfer to the wheels and reducing power loss.
Enhanced throttle response: By reducing engine movement and improving rigidity, performance mounts provide quicker and more precise throttle response, resulting in a more engaging driving experience.
Reduced drivetrain slack: Upgrading to performance engine mounts helps minimize drivetrain slack and improves shifting feel, leading to smoother gear changes and enhanced driving dynamics.
Enhanced stability and handling: Performance engine mounts contribute to improved stability during high-speed cornering, reducing engine-induced weight transfer and enhancing overall control and handling.
Reduced wheel hop: Stiffer engine mounts help reduce wheel hop, which can be particularly beneficial during aggressive acceleration or launch control situations.
At Design911, we specialize in providing the correct parts and professional advice for your Porsche. We offer a wide range of performance engine mounts specifically designed for Porsche models, including both aftermarket upgrades and OEM replacements. Our experienced team can assist you in selecting the appropriate engine mounts based on your Porsche model, year, and specific performance goals. We understand the importance of finding the right balance between performance and comfort, and we can guide you in choosing the optimal engine mounts that suit your needs. With our expertise and commitment to customer satisfaction, we can help you enhance your Porsche's performance, responsiveness, and overall driving experience. Contact us today to benefit from our comprehensive support and access high-quality parts tailored to your requirements.