Bilstein B1 Service Kit 11-271338 Rear Shock Dust Cover for BMW X3 F25 2010-2017 & X4 F26 2013-2018 - Shock Absorber Boot Strut Gaiter Damper Bellows Dust Shield Sleeve Protector, Rear Axle OE Quality

Bilstein 11-271338 B1 Rear Damper Protection Kit for BMW X3 F25 and BMW X4 F26

Keep your rear suspension working smoothly with the Bilstein 11-271338 B1 rear damper protection kit. This OE-grade service component shields the rear damper rod and seals from grit, water and road contamination, helping maintain consistent handling, quiet operation and long-term reliability on BMW X3 F25 and BMW X4 F26 models.

We run this exact kit on our own builds at MJ Modifications and across customer cars. Fit and finish are spot on, and feedback has been excellent for durability and the factory-style fitment you expect from Bilstein.

Why choose this rear suspension protection kit

• Genuine Bilstein B1 service part in OE quality
• Direct-fit rear axle application for BMW X3 F25 and BMW X4 F26
• Helps guard damper shafts and seals from dirt ingress
• Supports consistent damping and extends component life
• Works with factory dampers and Bilstein replacement units

Fitment position

Rear axle

Vehicle compatibility

Designed for:

• BMW X3 F25 2010 to 2017
• BMW X4 F26 2013 to 2018

Suitable across popular variants including sDrive and xDrive petrol and diesel models such as 20i, 28i, 35i, 18d, 20d, 30d and 35d. If you are unsure, we are happy to confirm fitment.

What this part helps with

• Rear damper sleeve and bellows protection
• Rear strut shroud to reduce contamination
• Shock absorber guard to preserve seals and rod surface
• Smoother, more consistent ride quality over time

Search-friendly terms customers use

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Professional fitting

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

Compatibility check

We can verify fitment before dispatch. Provide your UK registration or the last 7 characters of your VIN at checkout or via email and we will confirm compatibility.

Part details

Part number: 11-271338

Manufacturer: Bilstein

EAN: 4025258795245

UPC: 651860799735