Genuine BMW Uprated Rear Differential Bushing F8X M2 M3 M4 - Clubsport Garage

Genuine BMW Uprated Rear Differential Bushing F8X M2 M3 M4

By BMW
£99.95
Available – Dispatched within 1–3 Days
Worldwide Shipping
Official Dealer
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Product Description

The Genuine BMW Reinforced Rear Differential Bush is an updated OEM replacement for the rear differential mounting bush on compatible BMW F8X M cars, including the BMW F87 M2, F87 M2 Competition, F80 M3 and F82/F83 M4.

The factory rear differential bush is a known weak point on the F8X platform, particularly on tuned, high-power or track-driven cars. The original oil-filled rubber bush can deteriorate or fail over time, allowing unwanted differential and drivetrain movement, which may lead to knocking, reduced stability and increased wear on surrounding components.

BMW introduced this later updated replacement bush, part number 33179503009, with a reinforced construction featuring a steel and plastic core and a high-tech foam outer ring. This makes it a useful durability upgrade over the earlier soft rubber design while retaining OEM levels of refinement and avoiding excessive NVH.

This bush is also well suited for use with differential lift kits from brands such as KMP and Millway Motorsport, where a balance of compliance and rigidity is important for correcting driveline angles and reducing drivetrain stress.

Ideal for fast road, track and tuned F8X builds, this Genuine BMW bush provides a direct-fit solution for improving rear differential support while retaining OEM quality and compatibility.

Further information below.

Key Features
  • Genuine BMW reinforced rear differential bush
  • Updated OEM replacement for BMW F8X M cars
  • Direct replacement for the factory rear differential mounting bush
  • BMW part number: 33179503009
  • Designed to replace the original oil-filled rubber bush
  • Reinforced steel and plastic core
  • High-tech foam outer ring
  • Improved durability over the original soft rubber design
  • Helps reduce unwanted differential movement
  • Can help reduce drivetrain knocking caused by worn rear diff bushes
  • Supports improved drivetrain control under acceleration
  • Suitable for standard, tuned and high-power builds
  • Designed to retain OEM refinement without excessive NVH
  • Compatible with popular differential lift kits
  • Suitable for use with KMP and Millway Motorsport diff lift kits
  • Ideal for fast road, track and clubsport-style F8X builds
  • Often referred to by enthusiasts as the TU bush

Vehicle Compatibility
  • BMW F87 M2
  • BMW F87 M2 Competition
  • BMW F80 M3
  • BMW F82 M4
  • BMW F83 M4 Convertible
  • Direct replacement for the rear differential bush on compatible BMW F8X M cars.
  • Compatible with standard and tuned vehicles.
  • Suitable for use with selected differential lift kits, including KMP and Millway Motorsport setups.
  • Please confirm vehicle model, differential setup, bush location and any differential lift kit compatibility before ordering.
  • BMW part number: 33179503009

What's Included
  • Genuine BMW reinforced rear differential bush
  • Updated OEM bush construction
  • Reinforced steel and plastic core
  • High-tech foam outer ring
  • BMW part number: 33179503009
  • Bush only; differential lift kit and fitting hardware are not included unless supplied separately

FAQs

What does this rear differential bush do?

This bush supports the rear differential and helps control differential movement under acceleration, torque load and hard driving.

Why upgrade from the original factory bush?

The original oil-filled rubber bush can fail over time, especially on tuned or track-driven cars. This updated BMW bush uses a reinforced construction for improved durability.

Is this a genuine BMW part?

Yes. This is a genuine BMW OEM replacement bush.

What is the BMW part number?

The BMW part number is 33179503009.

Which vehicles does this bush fit?

It is designed for BMW F8X M cars, including F87 M2, F87 M2 Competition, F80 M3, F82 M4 and F83 M4 Convertible.

What is different about this updated bush?

It features a reinforced steel and plastic core with a high-tech foam outer ring, making it stronger than the original soft oil-filled rubber bush.

Will this increase NVH?

This is still an OEM BMW bush, so it is designed to improve durability and control without introducing excessive NVH.

Is it suitable for tuned cars?

Yes. It is suitable for standard, tuned and higher-power F8X builds.

Can this be used with a diff lift kit?

Yes. It is compatible with popular differential lift kits such as those from KMP and Millway Motorsport.

Why is it sometimes called a TU bush?

Some enthusiasts refer to it as the TU bush because it was introduced later in the production cycle as an updated replacement.

Is fitting hardware included?

No. This listing is for the bush only unless hardware is supplied separately.

What should I check before ordering?

Please confirm vehicle model, differential setup, bush location and any differential lift kit compatibility before ordering.

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.