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Subframe

Subframe bushings are a common failure point on BMWs - replace these to refresh your BMW.

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Whiteline Subframe Mount Bushings - E9X E82/88 BMW

T#:558800

Part#: KDT918

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$ 60.99 USD

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Designed to work with the original bushing and eliminate over compliance or better known in motorsport as 'lost motion' of the rear crossmember. This Whiteline kit dramatically reduces rear cross member misalignment and movement which allows a more positive feel from the rear end during cornering.

Features:

Performance - Whiteline's engineered "Synthetic Elastomer" bushings feature the quality ride of rubber at lower speeds and at higher speeds react when under cornering, accelerating and braking loads, for CHASSIS CONTROL and improved handling.
Durable - The advanced synthetic elastomer characteristics ensure superior elasticity, memory and outright durability for all forms of driving applications!
Resistant - Whiteline's synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering
Lubricant - Supplied with extreme pressure molybdenum disulphide (LM) based grease (where required) for extended life.
Installer Friendly - Designed with the installer in mind by reducing the need of specialized skills, tools and equipment.
Black - The neutral (black) appearance favored by restorers and racers.
Lifetime Warranty - All Whiteline bushing kits are backed by a lifetime warranty

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Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M

T#:2051

Part#: TMS2051

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$ 291.99 USD

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$ 291.99 USD

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Any subframe work or reinforcement project on the rear of the E46 M3 should include a new set of subframe mounts. It's the worn rubber bushings that contribute to failed rear subframes on the E46 (but not the only reason). As the rubber gets worn, there is more flex to the mount. This flexing is then transferred to the sheetmetal in the floor where the spot welds will pop and the sheetmetal will crack. Additional force coming from stiffer suspensions and stickier tires will only increase the flexing of the mounts/chassis.

Of course, stiffer mounts would help prevent this problem but with a stiffer bushing comes ride harshness, vibration, and additional noise. Our engineers and technicians recommend replacement with the factory rubber bushings (along with the appropriate reinforcement of the floor). The rubber bushings help isolate bumps and impacts and are quiet. They are also a perfect fitment and require no maintenance.

This item is a set of 4 Original BMW rubber subframe mounts. Individual part numbers - 33 31 2 283 573 (left front), 33 31 2 283 574 (right front), and 33 31 2 283 419 (left and right rear, x 2).

Applications:
2001-2006 E46 M3, M3 CSL coupe, convertible
2007-up Z4 M Roadster, M Coupe

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Control arm - lower front inner bushing

T#:26938506

Part#: W63401

Ships in 3 Business Days

$ 56.99 USD

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$ 56.99 USD

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Control arm - upper front bushing

T#:26938504

Part#: W63403

Ships in 3 Business Days

$ 81.99

This product was last offered at the strikethrough price on
08-13-2026

$ 75.99 USD

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$ 75.99 USD

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After comprehensive development and rigorous material testing focused on achieving strength, durability, geometry retention, and memory without compromising comfort, WHITELINE has achieved a breakthrough with its progressive, long-chain Synthetic Elastomer. This innovative material seamlessly combines the advantageous properties of solid bushings with the extreme flexibility characteristics of rubber, resulting in an unmatched balance of performance and comfort.

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Subframe

Whiteline Subframe Mount Bushings - E9X E82/88 BMW

Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M

Control arm - lower front inner bushing

Control arm - upper front bushing

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