Description
Powerflex Rear Subframe Rear Mounting Insert (PFR5-423) for BMW 3 Series (E9X) / BMW 1 Series (E8X).
Function and design
Subframe and beam mounts connect a suspension-carrying assembly to the body. Their compliance affects how that assembly moves relative to the chassis under braking, cornering and driveline loads.
What to consider
A replacement bushing and a reinforcement insert are different approaches to that mounting point. Changes in isolation can make road or drivetrain noise more noticeable; select the construction and specification appropriate to the build.
Application
BMW 3 Series (E9X) / BMW 1 Series (E8X).
Technical details
- Construction: reinforcement insert for the compatible original mounting arrangement. It is not a complete replacement mount; the retained mount must be suitable for reuse.
Choose your series
- Street: the road-oriented series; compound selection depends on the individual application.
- Black Series: the firmer series generally intended to prioritize movement control. Product-specific fitment and intended-use restrictions still apply.
Available options and part numbers
| Series | Manufacturer SKU |
|---|---|
| Street | PFR5-423 |
| Black Series | PFR5-423BLK |
Installation considerations
Confirm the subframe or beam design and mounting position. Follow the support, fastener and installation requirements for the vehicle, with an alignment check where the suspension location is affected.