Genuine BMW Uprated Rear Differential Bushing F8X M2 M3 M4
Product Description
Reinforced OEM Differential Bush for F8X M2 / M3 / M4
A known weak point on the BMW F8X platform (M2, M2 Competition, M3, M4) is the factory rear differential mounting bush. The original oil-filled rubber bushing often fails over time, especially on tuned or track-driven cars — leading to unwanted drivetrain movement, knocking, and premature wear on surrounding components.
BMW clearly recognised the issue and introduced this updated OEM replacement (part number 33179503009) late in the production cycle. It features a reinforced steel and plastic core with a high-tech foam outer ring — a substantial improvement over the original soft rubber design.
This is a direct-fit solution offering increased durability and control without introducing excessive NVH, making it an ideal upgrade for fast road, track, and even tuned high-power builds.
Why Upgrade Your F8X Diff Bush?
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Replaces the factory oil-filled bush prone to tearing
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OEM BMW part with updated construction
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Steel and plastic core for improved strength
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Longer lifespan under high torque loads
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Reduces drivetrain movement and associated wear
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Compatible with both standard and tuned power levels
💡 Some enthusiasts refer to this as the “TU bush,” referencing BMW’s later technical update
Ideal for Use With Diff Lift Kits
This OEM bush is fully compatible with popular differential lift kits such as those from KMP and Millway Motorsport. If you're raising the diff to correct driveline angles or reduce CV stress, this bush provides the ideal balance of compliance and rigidity for reliable performance.
Compatibility
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BMW F80 M3
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BMW F82 / F83 M4
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BMW F87 M2
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BMW F87 M2 Competition
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Direct replacement for rear diff bush on all F8X M cars
Part Number:
BMW OEM 33179503009
Recommended With
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Millway or KMP diff lift kits
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Clubsport or track-use powertrain upgrades
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.
