Powerflex Transmission Mount Bushing - BMW / 3-Series / 5-Series / Z4 / Toyota Supra | PFF5-4655


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Part# PFF5-4655

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PFF5-4655 is a transmission mount that will fit many different models of BMW throughout the years. This is available in 3 different versions. 

  • Street: Yellow 70A Durometer
  • Performance: Purple 80A Durometer
  • Race: Black 95A Durometer

These bushings are designed with street and track in mind to replace the tear-prone soft rubber mounts, which is a common cause of knocking, mis-shifting and over-revving. 

Made using CNC machined Aluminum Caps with captive securing bolts and a Yellow 70A Durometer polyurethane body, they increase stiffness over OE by 150%, while minimizing NVH transmission. 

Aside from our Street Series offering, they are available in our stiffer Purple 80A material for Performance use (260% stiffer) and Black Series 95A material, mainly intended for track use (375% stiffer) for those wanting to further reduce drivetrain movement. The harder the material used, the less deflection they offer and the higher the NVH transmission. 


OE / OEM Cross Reference Numbers: OEM Part Number: 2231679331 / 22316771219 OEM Part Number: 23711137817 / 22316796617 OEM Part Number: 22316875904 / 22312284819

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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