Part number: PFR5-4025
Fitment: BMW 4 Series M4 F82 F83
Product: Powerflex Poly Bushes Pack – Rear Diff Front Mounting Bush
Upgrade your BMW M4 F82 F83 with the Powerflex PFR5-4025 Rear Diff Front Mounting Bush kit. This performance polyurethane bush kit replaces all four bushes in the original rear differential front mounting bracket and includes aluminium sleeves with built-in support to control rear diff movement. The result is sharper handling, improved road holding and more consistent chassis performance from your BMW 4 Series M4.
Powerflex poly bushes are engineered to reduce unwanted suspension flex so your tyres maintain better contact with the road. Expect improved steering precision, enhanced stability and a more confidence-inspiring drive. Correctly formulated polyurethane can match or outperform rubber when it comes to noise, vibration and harshness control while delivering long-lasting durability. Backed by a Lifetime Warranty from Powerflex.
- Replaces all four bushes in the rear diff front mounting bracket
- Includes aluminium sleeves with built-in support to limit diff movement
- Improves handling, stability and braking consistency
- Reduces uneven tyre wear and restores chassis precision
- Durable polyurethane construction with Lifetime Warranty
What’s in the box:
- Number of bushes in the pack: 4
- Diagram Reference: 21
We run these bushes on our own builds at Nforcd and they deliver exactly what performance-focused BMW owners are looking for. Our customers consistently report a tighter rear end with more predictable traction and an overall improvement in driving feel on both road and spirited drives.
OEM cross reference: 33172284774
Professional fitting: For installation and setup, we recommend our in-house fitting service at Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
Common searches: Powerflex rear diff bush M4, BMW M4 rear differential front mounting bush, PFR5-4025, Powerflex M4 F82 F83 poly bushes, BMW 4 Series M4 diff mount upgrade, polyurethane suspension bushes BMW M4, rear diff mount bushes F82 F83, performance suspension bushes BMW M4.