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BMW

Genuine BMW Rear Differential Pinion Seal 45x75x10 AW 188 - OEM 31507609535 - Fits E82 F20 G11 G30 (135i, M240i xDrive, 535i xDrive, Z4 30i)

Genuine BMW Rear Differential Pinion Seal 45x75x10 AW 188 - OEM 31507609535 - Fits E82 F20 G11 G30 (135i, M240i xDrive, 535i xDrive, Z4 30i)

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Factory-Spec Rear Final Drive Input Shaft Oil Seal 45 x 75 x 10 AW 188 — BMW P/N 31507609535

Stop gear oil weeps at the propshaft flange and keep your rear axle running quiet and protected. This BMW factory component seals the input shaft on AW 188 final drives with exact sizing of 45 x 75 x 10. Part number 31507609535 delivers the precise fit, durability and long-term reliability enthusiasts expect on performance and daily-driven cars alike.

We use this seal in-house and on customer vehicles. It presses in squarely, seats perfectly and delivers a dry, dependable result. Owners report straightforward installation and leak-free operation after thousands of miles.

Why it belongs on your car

  • Genuine factory part for OE-grade sealing and correct interference fit
  • Dimensions: 45 x 75 x 10 — AW 188 application
  • Stops hypoid oil misting at the input shaft and prevents contamination
  • Ideal during differential refresh, bearing replacement or ratio changes
  • Built for the torque and heat cycles of turbo and xDrive applications

Fitment overview

Suitable for many BMW models using the AW 188 rear final drive across E, F and G chassis, including popular platforms such as E82, F20, G11 and G30. Common searches for this seal include:

  • BMW 135i E82
  • BMW M240i xDrive F22
  • BMW 535i xDrive G30
  • BMW Z4 30i G29

If you are unsure, we are happy to confirm fitment against your registration or VIN before dispatch.

Part details

  • BMW part number: 31507609535
  • Application: Rear axle input shaft seal — AW 188 final drive
  • Size: 45 x 75 x 10

Professional installation

Prefer expert fitting and alignment of the seal and flange surface prep for a first-time fix We can help. Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote.

Fitment verification

Add your UK registration or the last 7 of your VIN at checkout and we will verify compatibility prior to shipping for total peace of mind.

Warranty

Two-year manufacturer warranty for UK customers and one-year manufacturer warranty for international customers when a compatible VIN is provided at checkout.

Search-friendly terms

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