Bilstein 11-305798 B1 Front Shock Dust Boot & Bump Stop Kit BMW F10 5 Series & F06/F12 6 Series Front Axle

Bilstein 11-305798 B1 Strut Gaiter and Jounce Bumper Set – BMW F10 5 Series, F06 Gran Coupe, F12 Convertible – Front End

Keep the front end of your BMW tight, quiet and protected with the Bilstein B1 service kit, part number 11-305798. This kit pairs a high quality protector sleeve with a precisely matched jounce bumper to guard the damper rod from grit, spray and road salt, helping preserve smooth damping and extend the life of your shocks. Ideal when replacing struts or carrying out a suspension refresh on F10 5 Series and F06 F12 6 Series.

Search-friendly terms: BMW F10 strut boot, BMW 5 Series shock boot, BMW 6 Series damper cover, front strut gaiter, shock protector sleeve, jounce stop, bumpstop buffer, bellows kit, damper service kit, suspension repair kit, front end shock protection, piston rod guard, Bilstein B1 11-305798, BMW F10 F06 F12 front strut components.

Why it belongs on your BMW

• Exact-fit Bilstein quality – built to OE standards for a hassle-free install.
• Protects the damper rod from contamination to help maintain consistent ride and handling.
• Reduces the risk of premature wear, knocking and harsh bottoming.
• Perfect partner for new struts or as part of a preventative front end refresh.
• Compatible with factory-style dampers and Bilstein replacements.

What you get

• Protective tube and matching jounce bumper for the front axle.
• Durable materials engineered for long service life in UK conditions.
• Direct fit for the specified BMW applications below.

Vehicle applications

Front axle fitment for the following models:

• BMW 5 Series F10 Saloon, 2009 to 2016
  • 520i, 523i, 528i, 530i, 535i, ActiveHybrid, 550i, 518d, 520d, 525d, 530d, 535d, M550d xDrive
• BMW 6 Series F12 Convertible, 2010 to 2018
  • 640i, 640i xDrive, 650i, 650i xDrive, 640d, 640d xDrive
• BMW 6 Series F06 Gran Coupe, 2012 to 2018
  • 640i, 640i xDrive, 650i, 650i xDrive, 640d, 640d xDrive

More search terms to help you find the right part: BMW F10 front strut boot kit, F10 bump stop front, F06 shock bellows, F12 front shock sleeve, BMW 520d 530d 535i 550i strut protector, BMW 640d 640i 650i damper gaiter, front suspension jounce bumper set.

Fitting and support

Professional installation available at MJ Modifications, Warwickshire. For a fitting quote or advice, email info@mjmodifications.co.uk. We have installed these kits in-house and customer feedback has been excellent as part of shock replacement and suspension refresh work.

Compatibility check

We will verify fitment before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout so we can confirm suitability for your exact vehicle.

Part details

• Part number: Bilstein 11-305798
• Range: Bilstein B1 Service Parts
• Position: Front axle
• Manufacturer: Bilstein
• EAN: 4025258858629
• UPC: 651860866345

Why buy from us

Trusted performance parts, fast UK dispatch and expert support. Choose the Bilstein 11-305798 B1 strut gaiter and bump stop set to protect your investment, preserve comfort and keep your BMW’s front suspension performing at its best.