BMW 3 Series Type 188 Rear Differential OEM Bearing & Seal Rebuild Kit (8 Bolt)

To tell if your differential is a Type 188 please count the number of bolts holding the rear cover to the diff housing, there should be 8 bolts.

Alternatively you can use the RealOEM website and enter your vehicle details. Click on the axle icon and then click on the final drive gasket set icon. Number 1 will either be Type 168 or Type 188.

If your rear cover takes 7 bolts you have a Type 168 differential fitted to your vehicle and these parts will not fit.


This kit contains the following parts -

1 x Pinion double ball bearing - Koyo OE bearing no. 7525256 03 - 31.75mm x 73.29mm x 29.375mm

1 x Pinion double ball bearing - Koyo OE bearing no. 7531620 03 - 40.5mm x 93mm x 38mm

2 x Differential / Crown wheel ball bearings - Koyo OE Bearing no. 7537981 02 - 46mm x 90mm x 20mm

1 x Pinion Flange oil seal - Corteco OEM seal - 45mm x 75mm x 10/14mm

2 x Drive shaft Flange oil seals - Corteco OEM seal - 44mm x 90mm x 10/15mm

1 x Pinion flange nut lock washer - OE

1 x Compression spacer for the pinion bearings - OE part



Please feel free to contact us if you have any questions regarding this product.

If you are unsure if this will fit please send us the registration or the VIN number of your vehicle, we will then identify the correct parts.

Order number - ASAP22915

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More parts are available that are yet to be listed, please contact us if you cannot find the part you are looking for.