BMW Drivetrain Parts

Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...

T#:580353

Part#: B8800025

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05-03-2026

$ 24.74 USD

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The proper size for removing BMW drain plugs.

Differential Fluid Extraction Adapter

T#:578659

Part#: B3300000

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05-03-2026

$ 21.33 USD

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Differential Fluid Extraction Adapter is an essential tool for efficiently draining and refilling differential fluid, ensuring your vehicle's differential system remains in optimal condition. Designed to work with most extraction pumps, this adapter simplifies maintenance tasks, making it easier to service your differential without the mess or hassle of traditional methods.

Efficient fluid extraction: Allows for quick and clean draining of differential fluid.
Versatile compatibility: Works with most extraction pumps, offering flexibility for various vehicle makes and models.
Hassle-free maintenance: Simplifies the process of refilling and draining differential fluid, reducing time and effort.
Durable construction: Built from high-quality materials to withstand frequent use and harsh conditions.
Easy installation: Designed for a secure fit and easy attachment to extraction pumps.

This Differential Fluid Extraction Adapter is a must-have for any vehicle owner looking to maintain the longevity and performance of their differential system.

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Bav Auto Transmission/Differential Drain Plug Socket Set

T#:580446

Part#: B8800141

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05-03-2026

$ 27.74 USD

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Drain plug socket set. Set of 3 hex-head sockets make removal of transmission and differential drain plugs so much easier. Includes 10mm, 14mm and 17mm sizes. 3/8" drive

Clutch Slave Cylinder Bleeder Tool

T#:585675

Part#: CBTTOOL

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05-03-2026

$ 70.42 USD

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$ 70.42 USD

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Bleed your slave cylinder with confidence using this clutch slave cylinder bleeder tool. Get the job done right the first time and assure that your clutch pressure is appropriate. Use the tools' adjustable piston rod to apply pressure to the cylinders' piston rod, making the process much simpler.

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Bav Auto Fluid Transfer Pump - 200ml - Viton Seals

T#:580336

Part#: B8800004

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05-03-2026

$ 29.24 USD

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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids.

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Bav Auto Wheel Hub and Rotor Grinding Kit

T#:580437

Part#: B8800132

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$ 43.19 USD

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Used to remove corrosion and ensure brake rotors, wheel spacers, etc sit flush on your hubs

Bav Auto Axle Shaft Impact Force Screw Adapter

T#:580429

Part#: B8800122

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05-03-2026

$ 36.89 USD

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For use with B8800120 (Hub Puller Adapter) as an impact driver to aid in removal of stuck CV axle shafts.

Bav Auto Fluid Transfer Pump - 1 Liter - Viton Seals

T#:580335

Part#: B8800003

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05-03-2026

$ 51.84 USD

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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids. For draining differentials we recommend using the Bavarian Autosport adapter part # B3300000.

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Bav Auto Wheel Hub Puller / Axle Press - 4 lug bolt - BMW & MINI ...

T#:580367

Part#: B8800043

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05-03-2026

$ 32.29 USD

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Use this tool to press the splined axle end out of the wheel flange or hub on rear-wheel drive and front-wheel drive 4 LUG BMWs and MINIs. This tool is also used to pull the front wheel bearing hub on 2-wheel drive BMW models with sealed bearing and hub assemblies.

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BMS Differential Support Bracket Brace For G Chassis BMW/Supra ...

T#:49822560

Part#: BMSDSBBG

Ships on Aug 28, 2026

$ 229.00 USD

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$ 229.00 USD

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For G-Chassis BMW & A90/A91 Toyota Supra High torque loads, hard launches, and aggressive driving expose the factory differential mounting’s built-in compliance. Under power, the differential can shift excessively, resulting in wheel hop, inconsistent traction, and increased stress on drivetrain components—issues that become more pronounced on tuned or track-driven cars. The BMS Differential Support Bracket Brace corrects this weakness by reinforcing the differential mounting point and securely tying it to the subframe. By controlling unwanted movement, the brace improves rear-end stability and ensures power is transferred to the ground more efficiently. Why Upgrade? OEM differential mounts favor NVH reduction over control. As torque output increases, that compliance translates into drivetrain shock and lost traction. This brace stiffens the system where it matters most, reducing flex and improving load management under acceleration. Performance Benefits Improved launch consistency Significant reduction in wheel hop Increased rear-end stability under load More precise and predictable power delivery Engineered for Demanding Use Designed around factory mounting points, the BMS Differential Support Bracket delivers precise OE-level fitment with increased structural rigidity. Its robust construction resists deflection under high torque, while upgraded hardware provides greater clamping force for long-term reliability. Fully bolt-on for straightforward installation on both stock and modified vehicles. Key Features Reinforces rear differential mounting Limits differential movement under load Enhances traction and drivetrain response Heavy-duty construction for high-performance applications Bolt-on installation using factory locations Compatible with G-chassis BMW and A90/A91 Supra A focused drivetrain upgrade for drivers who demand consistency, control, and durability at higher performance levels.

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Bav Auto 36MM 12 Point Socket - 1/2" Drive

T#:580421

Part#: B8800114

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$ 22.49 USD

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This is a thin-walled 1/2" drive 36mm impact socket - useful in removing or installing wheel bearing and axle nuts on several BMW models.

Automatic Transmission Fluid Filler Plug

T#:50031926

Part#: 24117507787

Ships in 1 Business Day

$ 30.99 USD

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$ 30.99 USD

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BMW Oil Filler Plug - This item fits the following BMW Chassis: E82,E83 X3,E90,E92,E93 Genuine BMW Oil Filler Plug - This item fits the following BMW Chassis: E82,E83 X3,E90,E92,E93

URO Position Switch - BMW E3X 5

T#:49996980

Part#: 24107512755

Ships in 1 Business Day

$ 471.99 USD

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$ 471.99 USD

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Replaces faulty or damaged position switch.

Lower Engine Mount / Rubber

T#:50934345

Part#: 22116783094

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$ 39.99 USD

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$ 39.99 USD

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Billet Diff Lock Down Kit

T#:21176906

Part#: VTT-A9X-DLD

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This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD

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Starting at $ 291.99 USD

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VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.

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Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...

T#:580447

Part#: B8800142

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05-03-2026

$ 14.99 USD

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Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.

Bav Auto Hub Puller Slide Hammer Adapter

T#:580428

Part#: B8800121

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05-03-2026

$ 17.99 USD

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Necessary in order to use Bav Auto's Hub Adapter/Puller (B8800120) . 5/8" x 18T UNF thread.

Rogue Engineering E46 M3 Differential Bushing (Front Position) FIX ...

T#:54388516

Part#: RE.484.FIX

Ships in 8 Business Days

$ 64.00 USD

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$ 64.00 USD

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A common failure point on the BMW E46 M3 platform occurs when the side differential mounting bolt backs out, leading to stripped threads in the differential cover.