Powerflex Differential Rear Mounting Bushes F8X M2, M3, M4 Competition

Product Description

The Powerflex Differential Rear Mounting Bushes are a direct replacement upgrade for compatible BMW F8X M models, including the BMW F87 M2 Competition, BMW F80 M3 and BMW F82 M4. Designed to improve rear differential support, they help reduce unwanted differential movement under acceleration and hard driving.

Each bush features a built-in support washer, providing additional stability to help keep the differential more securely located under load. This can improve drivetrain response and support a more controlled rear-end feel, especially on fast road, track day and performance-focused cars.

The bushes are available in Powerflex Purple or Powerflex Black Series. The Purple option is suited to performance road and fast road use, while the Black Series option is stiffer and more focused towards track or motorsport applications.

These rear differential mounting bushes complement the Powerflex Dual Mount Rear Differential Bracket, with front differential mounting bushes also available separately for customers looking to further improve drivetrain control.

Powerflex part numbers are PFR5-4026 and PFR5-4026BLK, with diagram number 22. Please confirm vehicle model, year, differential setup and bush location before ordering.

Further information below.

Key Features

Powerflex Differential Rear Mounting Bushes for BMW F8X M2, M3 and M4 Competition

Replacement rear differential mounting bushes for improved drivetrain stability

Designed to help control differential movement under acceleration

Built-in support washer provides additional stability and support

Helps improve rear differential location during hard driving

Suitable upgrade for fast road, track day and performance applications

Available in Powerflex Purple or Powerflex Black Series

Black Series option offers a stiffer bush for more focused performance use

Complements the Powerflex Dual Mount Rear Differential Bracket

Front differential mounting bushes also available separately

Vehicle Compatibility

Suitable for compatible BMW F8X M models using the rear differential mounting bush shown as diagram number 22.
Available in Powerflex Purple or Powerflex Black Series depending on required stiffness.
Powerflex part numbers: PFR5-4026 and PFR5-4026BLK.
Complements the Powerflex Dual Mount Rear Differential Bracket.
Please confirm vehicle model, year, differential setup and bush location before ordering.

What's Included

Powerflex rear differential mounting bushes
Built-in support washer

FAQs

What do Powerflex Differential Rear Mounting Bushes do?

They help control rear differential movement, improving drivetrain stability under acceleration.

Which vehicles are these bushes suitable for?

They are suitable for BMW F87 M2 Competition, BMW F80 M3 and BMW F82 M4 applications, depending on differential setup and bush location.

What is the built-in support washer for?

The built-in support washer provides additional stability and support to help keep the differential more securely located under load.

What options are available?

The bushes are available in Powerflex Purple or Powerflex Black Series. The Black Series option is stiffer and more focused towards performance use.

What are the Powerflex part numbers?

The part numbers are PFR5-4026 and PFR5-4026BLK.

What diagram number is this bush?

This bush is shown as diagram number 22.

Does this work with the Powerflex Dual Mount Rear Differential Bracket?

Yes. These bushes complement the Powerflex Dual Mount Rear Differential Bracket.

Are front differential bushes available separately?

Yes. Differential front mounting bushes are also available separately.

Is this suitable for track use?

Yes. These bushes are suitable for fast road, track day and performance applications where improved differential stability is beneficial.

Shipping & Delivery

Dispatch Times

Most stocked items dispatch within 1–2 business days. Some products may have longer lead times due to special ordering, availability, or build times. If your order contains multiple items, they may be shipped together once all items are ready unless otherwise agreed.

UK & International Shipping

We ship worldwide. Transit times vary depending on destination and courier. Tracking details are provided once your order is dispatched.

Import Duties & International Orders

International customers are responsible for all import duties, taxes, and clearance fees. These are not included in our prices and are outside of our control. Refusal or non-payment of import charges may result in return shipping, handling fees, and customs charges being deducted from any refund.

Damaged Shipments

If your parcel arrives visibly damaged, please refuse delivery or note the damage with the courier. If damage is discovered after opening, contact us immediately with photos. Do not install damaged items, as installation voids courier claims and return eligibility.

Returns

Returns must be authorised before sending anything back. Returns must be requested within 14 days of delivery and returned within 14 days of approval, in unused/uninstalled condition and in original packaging. Some items, including special-order, built-to-order, used, installed, or modified parts, are non-returnable.

Full details are available in our Shipping Policy and Returns & Refund Policy.

Warranty & Disclaimer

Warranty

Most products include a manufacturer’s warranty covering manufacturing defects only. Warranties do not cover wear and tear, improper installation, misuse or neglect, track use, competition or racing environments, labour costs, vehicle damage, downtime, or consequential loss. Warranty outcomes are determined by the manufacturer, not Clubsport Garage. Items must be returned for inspection at the customer’s cost unless agreed otherwise.

Fitment & Installation

Many products are aftermarket components and may require professional installation or minor adjustment. Perfect OEM-level fitment cannot be guaranteed. Professional installation by an experienced workshop is strongly recommended. Installed or used items cannot be returned.

Motorsport Use Disclaimer

Some products are intended for off-road, track, or motorsport use only and may not be legal for road use, for example non-TÜV/DOT-approved parts. It is the customer’s responsibility to ensure compliance with local laws, insurance requirements, and vehicle regulations. By purchasing and installing aftermarket parts, you accept all responsibility for ensuring compatibility, legal compliance, proper installation, and any resulting wear, damage, or failure.

Product Images & Descriptions

Product photos are illustrative and may differ slightly from the item supplied. If specific details are important, please contact us before purchasing.

Full details are available in our Terms of Service and related policy pages.