Whiteline
Whiteline Rear Diff Mount Insert
Whiteline Rear Diff Mount Insert
Part number: 1PE15
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
Rear Diff Mount Insert by Whiteline for the rear position. Worn bushings let parts move too much, causing clunks and vague steering. The fitment section lists 14 applications.
Key features
- Rear position
Specifications
- Brand: Whiteline
- Part type: Bushing kit
- Position: Rear
Fitment
- 1991 - 1998 BMW 318i Base
- 1991 - 1997 BMW 318is Base
- 1995 - 1999 BMW 318ti Base
- 2000 BMW 323Ci Base
- 1998 - 2000 BMW 323i Base
- 1998 - 1999 BMW 323is Base
- 1991 - 1995 BMW 325i Base
- 1991 - 1995 BMW 325is Base
- 1991 BMW 325iX Base
- 2000 BMW 328Ci Base
- 1996 - 2000 BMW 328i Base
- 1996 - 1999 BMW 328is Base
- 1995 - 1999 BMW M3 Base
- 1995 BMW M3 Lightweight
What it does
Bushings cushion the joints between suspension parts and the body. Worn suspension and steering parts show up as clunks, wandering, uneven tire wear and a vague feel; fresh parts restore control, and performance parts sharpen it.
Installation & tips
- Tighten bushing bolts with the car at ride height so the bushings are not preloaded.
- Alignment: New bushings can shift alignment.
- This part affects how the vehicle stops, steers or holds the road. If you are not sure how to fit it, have it installed or checked by a qualified mechanic.
FAQ
Which side or position does it fit?
It is listed for the rear position. If you are replacing both sides, check whether you need one of each.
How many vehicles is it listed for?
14 applications are listed in the fitment section above.
Can I install it myself?
Many owners do this job at home with the right tools and a service manual, but because it is a safety-related part, have the work checked by a qualified mechanic if you are not sure.
Before you order
- Check the position: this part is listed as rear.
- Measure the part you are replacing and compare it with the specifications above.
- Plan for a wheel alignment after fitting if the job changes the suspension or steering geometry.

Whiteline bushings: what to know
Worn bushings let parts move too much, causing clunks and vague steering.
Fitment notes
- Specs, lead time and warranty come from Whiteline and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentWhat else to plan for
- Alignment. New bushings can shift alignment.
More for your car: Suspension & steering
Questions about bushings
Will this fit my car?
Rubber or poly?
Where do specs and warranty details come from?
Questions & answers
No questions yet about this part. Ask about fitment, what's in the box or installation and we'll answer here.