Powerflex
Porsche Engine Mount Bushing Insert - Powerflex PFR57-521B
Boxster, Cayman
Race Series, Diagram Reference #20
Description
Details
- SKU:
- PWF-PFR57521B
- FCP Euro ID:
- 577877
- Made in:
- United Kingdom
- Quality:
- Performance
OE Numbers
- 9A137502322, 9A137502321, 98737502305, 98637502304, 98637502307, 98637512303, 98737502303, 99637505503, 98637502303, 98637502305, 98737502302, 98737502304, 98637525501
MFG Numbers
- PFR57-521BLK, PFR57-521B, PFR57521B, PFR57521BLK
Product Information
The Boxster and Cayman factory engine mount bushing are prone to cracking and excessive wear because of the large void left in the rubber material. As the bushing wears you may experience knocking sounds during acceleration, braking, and cornering. Gear changes will also become sloppy and less precise.
A polyurethane insert fits into these voids in the original mount to provide a quick and easy way to limit engine movement and provide additional engine stability under acceleration and gear changes. While inserts are a good way to prolong the life of the original mount, it is recommended that they are fitted to mounts that are still in good condition and without cracking.

Engine mounts are designed to keep your engine and transmission supported and fixed to your vehicles frame or sub-frame without causing excessive vibrations that can enter the cabin. Engine mounts keep your drive-train properly aligned and if failed can promote drive train vibrations and premature component wear. Over time, your engine mounts deteriorate resulting in extra engine noise, engine rocking, a less enjoyable driving experience, and thus must be replaced.
Engine Mount Bushing Failure Symptoms- Engine Vibration
- Drivetrain Vibration
- Uneven Engine surface
- Engine Rock during gear changes
- Engine Rock during braking
About Powerflex
Installation instructions are included in all Powerflex kits
Powerflex has extensive knowledge and design experience in automotive suspension and chassis systems. These design skills have been combined with advanced polyurethane manufacturing techniques leading to the development of a wide range of high-performance automotive polyurethane components that are second to none in quality and performance.
Street Purple - Powerflex Street bushings are purple in color and are meant for street sport applications. Order this compound for daily driven cars and when ultimate performance is not a priority. In some positions, the street compound bushing may also be yellow.
Racing Black - Powerflex Racing bushings are significantly stiffer than their street counterparts, and are designed for vehicles that are driven on race tracks for minimum bushing deflection. Occasionally racing black bushings are denoted for use on street applications in positions where excess load puts significant demand on a bushing and NVH is not effected by the stiffer material.
All component manufacturing is carried out by our in-house engineers utilizing the latest automatic processing equipment to ensure premium quality. Testing of new components is carried out both on test rigs and on the actual vehicle the parts are designed for. Stainless steel and aluminum components are also machined in-house on the latest computer-controlled equipment to ensure perfect repeatability and exceptional quality.
The special type of polyurethane used by Powerflex is an advanced proprietary material which has unique properties. This ensures that each product not only offers the high-performance capabilities our customers expect, but also the exceptionally long life and quality they demand - without increased vibration or noise.
Fits These Cars
Porsche Boxster
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1997 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.5L H6 Gas
Notes: Insert -
1997 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.5L H6 Gas
Notes: Insert -
1998 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.5L H6 Gas
Notes: Insert -
1998 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.5L H6 Gas
Notes: Insert -
1999 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.5L H6 Gas
Notes: Insert -
1999 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.5L H6 Gas
Notes: Insert -
2000 Porsche Boxster Roadster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
Notes: Insert -
2000 Porsche Boxster Roadster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
Notes: Insert -
2000 Porsche Boxster Roadster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2000 Porsche Boxster Roadster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2001 Porsche Boxster Roadster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
Notes: Insert -
2001 Porsche Boxster Roadster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
Notes: Insert -
2001 Porsche Boxster Roadster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2001 Porsche Boxster Roadster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2002 Porsche Boxster Roadster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
Notes: Insert -
2002 Porsche Boxster Roadster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
Notes: Insert -
2002 Porsche Boxster Roadster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2002 Porsche Boxster Roadster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2003 Porsche Boxster Roadster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
Notes: Insert -
2003 Porsche Boxster Roadster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
Notes: Insert -
2003 Porsche Boxster Roadster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2003 Porsche Boxster Roadster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2004 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
Notes: Insert -
2004 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
Notes: Insert -
2004 Porsche Boxster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2004 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2004 Porsche Boxster S Special Edition Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
Notes: Insert -
2004 Porsche Boxster S Special Edition Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
Notes: Insert -
2005 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
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2005 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
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2005 Porsche Boxster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
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2005 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
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2006 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
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2006 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
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2006 Porsche Boxster S Engine Mount BushingAutomatic RWD Convertible 3.2L H6 Gas
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2006 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.2L H6 Gas
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2007 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
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2007 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
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2007 Porsche Boxster S Engine Mount BushingAutomatic RWD Convertible 3.4L H6 Gas
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2007 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
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2008 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
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2008 Porsche Boxster Limited Edition Engine Mount BushingAutomatic RWD Convertible 2.7L H6 Gas
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2008 Porsche Boxster Limited Edition Engine Mount BushingManual RWD Convertible 2.7L H6 Gas
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2008 Porsche Boxster RS 60 Spyder Engine Mount BushingAutomatic RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster RS 60 Spyder Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster S Engine Mount BushingAutomatic RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster S Limited Edition Engine Mount BushingAutomatic RWD Convertible 3.4L H6 Gas
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2008 Porsche Boxster S Limited Edition Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2009 Porsche Boxster Engine Mount BushingAutomatic Dual Clutch RWD Convertible 2.9L H6 Gas
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2009 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.9L H6 Gas
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2009 Porsche Boxster S Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2009 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2009 Porsche Boxster S Porsche Design 2 Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2009 Porsche Boxster S Porsche Design 2 Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2010 Porsche Boxster Engine Mount BushingAutomatic Dual Clutch RWD Convertible 2.9L H6 Gas
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2010 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.9L H6 Gas
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2010 Porsche Boxster S Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2010 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2011 Porsche Boxster Engine Mount BushingAutomatic Dual Clutch RWD Convertible 2.9L H6 Gas
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2011 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.9L H6 Gas
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2011 Porsche Boxster S Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2011 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2011 Porsche Boxster Spyder Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2011 Porsche Boxster Spyder Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster Engine Mount BushingAutomatic Dual Clutch RWD Convertible 2.9L H6 Gas
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2012 Porsche Boxster Engine Mount BushingManual RWD Convertible 2.9L H6 Gas
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2012 Porsche Boxster S Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster S Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster S Black Edition Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster S Black Edition Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster Spyder Engine Mount BushingAutomatic Dual Clutch RWD Convertible 3.4L H6 Gas
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2012 Porsche Boxster Spyder Engine Mount BushingManual RWD Convertible 3.4L H6 Gas
Porsche Cayman
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2006 Porsche Cayman S Engine Mount BushingAutomatic RWD Hatchback 3.4L H6 Gas
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2006 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2007 Porsche Cayman Engine Mount BushingAutomatic RWD Hatchback 2.7L H6 Gas
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2007 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.7L H6 Gas
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2007 Porsche Cayman S Engine Mount BushingAutomatic RWD Hatchback 3.4L H6 Gas
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2007 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2008 Porsche Cayman Engine Mount BushingAutomatic RWD Hatchback 2.7L H6 Gas
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2008 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.7L H6 Gas
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2008 Porsche Cayman S Engine Mount BushingAutomatic RWD Hatchback 3.4L H6 Gas
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2008 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2009 Porsche Cayman Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 2.9L H6 Gas
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2009 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.9L H6 Gas
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2009 Porsche Cayman S Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 3.4L H6 Gas
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2009 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2010 Porsche Cayman Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 2.9L H6 Gas
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2010 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.9L H6 Gas
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2010 Porsche Cayman S Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 3.4L H6 Gas
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2010 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2011 Porsche Cayman Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 2.9L H6 Gas
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2011 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.9L H6 Gas
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2011 Porsche Cayman S Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 3.4L H6 Gas
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2011 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2012 Porsche Cayman Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 2.9L H6 Gas
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2012 Porsche Cayman Engine Mount BushingManual RWD Hatchback 2.9L H6 Gas
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2012 Porsche Cayman R Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 3.4L H6 Gas
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2012 Porsche Cayman R Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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2012 Porsche Cayman S Engine Mount BushingAutomatic Dual Clutch RWD Hatchback 3.4L H6 Gas
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2012 Porsche Cayman S Engine Mount BushingManual RWD Hatchback 3.4L H6 Gas
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