Bilstein B1 Rear Shock Absorber Dust Cover Boot & Bump Stop Kit (Damper Gaiter) - BMW E32 E34 E38 5 & 7 Series - 11-289333

Bilstein 11-289333 Rear Damper Protection Sleeve Set for BMW E32 E34 E38

Give your classic BMW’s rear suspension the protection it deserves with the Bilstein B1 service kit, part number 11-289333. This rear axle protection set pairs a robust bellows-style sleeve with an OE-grade bumpstop to shield the piston rod from grit and moisture while controlling end-of-travel compression. It is a direct-fit replacement for aging rear damper guards on BMW 5 Series E34 and 7 Series E32 and E38, delivering quiet, consistent ride quality and long-term durability.

Why enthusiasts choose this setup

• Engineered by Bilstein for a precise rear axle fit on E32, E34 and E38 platforms
• High-quality bellows keeps road grime off the rod for smoother, longer-lasting damping
• Correct-rate bumpstop helps manage bottom-out events to protect the rear shock internals
• Ideal OE replacement for cracked dust sleeves, perished buffers and tired gaiters
• Simple, tidy install with factory-style finish

Real-world results

We have installed this kit on multiple customer E34 and E38 projects and the fitment has been spot on. Feedback has been consistently positive, with owners noting a cleaner, better-protected rear damper assembly and renewed confidence in ride quality.

Vehicle coverage

BMW 5 Series E34

• 5 Series Saloon E34 02.1987 - 12.1995
  • 518i, 520i, 520i 24V, 525i, 525i 24V, 525iX 24V, 530i, 530i V8, 535i, 524td, 525td, 525tds
• 5 Series Touring E34 07.1991 - 07.1996
  • 518i, 520i, 525td, 525tds

BMW 7 Series E32

• 7 Series E32 03.1985 - 10.1994
  • 730i, 730iL, 730i V8, 730iL V8, 735i, 735iL, 740i V8, 740iL V8

BMW 7 Series E38

• 7 Series E38 03.1994 - 11.2001
  • 728i, 728iL, 730i, 730iL, 735i, 735iL, 740i, 740iL, 750i, 750iL, 725tds, 730d, 740d

Position and function

• Location: Rear axle
• Function: Piston rod guard and jounce buffer to keep contaminants out and control compression

Part numbers and identifiers

• Bilstein reference: 11-289333
• EAN: 4025258851965
• UPC: 651860859736

Professional fitting

Want it installed correctly the first time? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check

We verify suitability before dispatch. Add your UK registration or the last 7 characters of your VIN at checkout and we will confirm this kit matches your specific car.

What you gain

• Cleaner, protected rear damper assembly for consistent performance
• Reduced wear on seals and sliding surfaces
• Factory-style solution for worn sleeves, torn bellows and tired buffers

Search-friendly terms

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Choose a proven solution trusted by us and our customers. The Bilstein 11-289333 rear damper protection set restores confidence, preserves your rear shocks and keeps your classic BMW driving the way it should.