Bilstein 11-276548 B1 Rear Shock Absorber Dust Cover Boot & Bump Stop Kit for BMW E82 1 Series M, E90 E92 M3 (CRT, GTS) EDC Compatible

Bilstein 11-276548 B1 rear strut gaiter and jounce bumper set for BMW 1M E82 and M3 E90 E92

Keep grit, salt and moisture away from your rear dampers and preserve that razor-sharp chassis feel. The Bilstein B1 accessory kit, part number 11-276548, combines a high-quality protective sleeve with a progressive bumpstop to safeguard your suspension on the rear axle. It is an OE-spec solution engineered by Bilstein for BMW applications including the E82 1 Series M Coupe and the E9x M3 platform, including CRT and GTS derivatives, and it is fully compatible with Electronic Damper Control.

We run these B1 service components on our own cars and customer builds at MJ Modifications. Fit and finish are spot on, the parts are quiet in use, and they keep rear shocks working smoothly for longer by shielding the piston rod and seals from contamination.

What this kit does for your BMW

• Shields the damper shaft with a robust bellows to reduce wear and corrosion from road debris.
• Includes a correctly rated rear jounce bumper to control end-of-travel and minimise harshness.
• OE-grade materials for consistent operation, long service life and a tidy, factory look.
• Precisely matched dimensions for Bilstein units and suitable for OE replacement dampers.
• Ideal when refreshing suspension, addressing perished boots or pairing with new shocks or coils.

Key details

• Manufacturer: Bilstein
• Range: B1 service components
• Part number: 11-276548
• Position: Rear axle
• Compatibility: Works with cars equipped with or without EDC
• EAN: 4025258805128
• UPC: 651860809120

Vehicle fitment

• BMW 1 Series
  • E82 1 Series M Coupe
• BMW 3 Series
  • E90 M3 Saloon including CRT
  • E92 M3 Coupe including GTS

Why buy from MJ Modifications

Trusted by enthusiasts and track-day drivers alike, we supply the suspension consumables we use ourselves. Our customers love the quiet operation, snug fit and the way these sleeves and bump rubbers refresh tired rear assemblies without adding NVH.

Fitting service

Prefer expert installation. Book professional fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check

We will confirm fitment before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout and we will verify suitability for your specific chassis.

Search terms to help you find the right part

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In the box

Bilstein B1 rear protective sleeve and matched bump rubber, engineered to shield your rear dampers and maintain precise handling.