Genuine BMW Genuine BMW Rear Final Drive Differential Assembly - 3.38 Ratio - F25 X3 F26 X4 33107636994KT

Genuine BMW Rear Final Drive Differential Assembly - 3.38 Ratio - F25 X3 F26 X4

Maintain optimal all wheel drive traction and eliminate power robbing differential slop with a Genuine BMW Rear Final Drive Assembly. Engineered to original factory tolerances with a 3.38 final drive ratio, this complete replacement differential assembly eliminates internal gear play and restores instant power transfer to the rear wheels. Pre assembled with factory side flanges and precision valved internal gearing, it provides a seamless repair solution that avoids complex internal gear setting or lash adjustments.
Genuine BMW Genuine BMW
T#: 58489940 | Part#: 33107636994KT
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4011.99 $4011.99
Partial Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Availability:
Available from Supplier
Est. Ship Date:
Ships on Oct 15, 2026
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Genuine BMW Genuine BMW Rear Final Drive Differential Assembly - 3.38 Ratio - F25 X3 F26 X4 33107636994KT
Genuine BMW Rear Final Drive Differential Assembly - 3.38 Ratio - F25 X3 F26 X4
$4011.99

Maintain optimal all wheel drive traction and eliminate power robbing differential slop with a Genuine BMW Rear Final Drive Assembly. Engineered to original factory tolerances with a 3.38 final drive ratio, this complete replacement differential assembly eliminates internal gear play and restores instant power transfer to the rear wheels. Pre assembled with factory side flanges and precision valved internal gearing, it provides a seamless repair solution that avoids complex internal gear setting or lash adjustments.

  • Factory complete assembly guarantees exact 3.38 final drive gearing and drop in chassis installation
  • Built to withstand high torque loads, aggressive launches, and all weather driving conditions
  • Eliminates rear end gear whine, bearing rumble, and driveline vibration caused by worn factory differentials
  • Direct fit replacement for factory part number 33107636994 on 2011 to 2018 F25 X3 and F26 X4 models

Includes a refundable $826 core charge. 

Prop 65 WarningProp 65 Warning

Cross Reference
  • 33107636994, 33-10-7-636-994, 33 10 7 636 994, 33.10.7.636.994
Qty Description Brand T# Part# Lifetime
1 Genuine BMW Rear-Axle-Drive - I=3,38 - 33107636994 Genuine BMW T#224100 33107636994 YES
1 Core Charge CoreCharge T#58489939 33107636994~CO NO

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Lifetime Replacement

Some kit components are covered by our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW F25 X3 sDrive28i N20 2.0L Use vehicle selector to confirm fitment
BMW F25 X3 xDrive28i N20 2.0L Use vehicle selector to confirm fitment
BMW F25 xDrive3.5i N55 3.0L Use vehicle selector to confirm fitment
BMW F26 X4 M40iX N55 3.0L Use vehicle selector to confirm fitment
BMW F26 X4 xDrive28i N20 2.0L Use vehicle selector to confirm fitment
BMW F26 X4 xDrive35i N55 3.0L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.