BMW F20 F30 F83 Rear Shock Dust Cover & Bump Stop Kit - Bilstein 11-305880

For F20, F30 and F83 chassis running Bilstein B1 rear dampers: this is the exact dust cover and bump stop kit you need to keep things sealed, quiet and functional - not a generic ‘OEM replacement’ or vague ‘fitment pack’.

It’s the Bilstein 11-305880 assembly: one-piece rubber dust cover + separate polyurethane bump stop. No guesswork. No mismatched parts. Just what Bilstein shipped with their B1s for these models.

• Fits: F20 (114i-M140i), F30 (316d-340i), F83 (M240i) - all with factory-fitted or retrofitted Bilstein B1 rears
• Not for: N54/N55-powered E90/E92, B58-powered G20/G22, or any car with M-sport, M Performance or M Adaptive dampers
• Solves: Cracked boots letting in grit, collapsed bump stops causing clonk on full compression, or missing covers after damper service
• Search terms covered: BMW F30 rear gaiter kit, F20 shock boot replacement, F83 bump stop Bilstein, 11-305880 fitment, fast road suspension refresh, track day prep, daily driver damper protection

Because race car.