Bilstein B6 Performance OE Upgrade Rear Shock Absorber/Damper - BMW G20 G21 G42 G81 (2 & 3 Series) & ALPINA B3 - Monotube Gas Pressure - Non-Electronic Suspension - Part 24-303347 BILSTEIN-24-303347

BILSTEIN B6 Rear Damper Upgrade - Part No. 24-303347

Give your G-series chassis a serious suspension refresh with the BILSTEIN B6 performance rear damper, part 24-303347. This gas-charged monotube unit is a direct-fit replacement for the back axle on selected BMW 2 Series Coupe, 3 Series Saloon and Touring, plus ALPINA B3. Expect sharper body control, confident stability and crisp response on British roads while keeping everyday comfort intact.

We have installed these B6 rear dampers for customers and the verdict is consistent. Tighter roll management, stronger traction out of bends and a more composed ride on uneven tarmac. If you want an OE-quality upgrade that simply works without changing springs, this is it.

Why it is a smart upgrade

• Direct-fit rear damper for cars without adaptive damping or EDC
• Gas pressure monotube design for precise control and fade-resistant performance
• Improved lane stability, better grip and more confidence at speed and in poor weather
• High durability and strong reserves for daily use, load carrying and towing
• Tuned by BILSTEIN for real-world road conditions
• Works seamlessly with standard factory coil springs

Technical details

• Location: rear axle
• Technology: gas-charged monotube
• Design: separate spring fitment - spring not carried on the damper
• Mounting style: bottom eye - top pin
• For vehicles without electronic damping control - passive suspension only

Vehicle applications

Engineered for specific ALPINA and BMW G-series models. If you are unsure, use our free fitment check before dispatch.

ALPINA

• B3 G20 from 09.2019 onwards - BITURBO All-wheel Drive

BMW

• 2 Series Coupe G42 from 08.2021 onwards - 218i, 220i, 230i, M240i xDrive
• 3 Series Saloon G20 from 11.2018 onwards - 318i, 320i 1.6, 320i, 320i xDrive, 330i, 330i xDrive, M340i, M340i xDrive, M340i Mild-Hybrid xDrive, 316d, 316d Mild-Hybrid, 318d, 318d Mild-Hybrid, 320d, 320d Mild-Hybrid, 320d xDrive, 320d Mild-Hybrid xDrive, 330d, 330d Mild-Hybrid, 330d xDrive, 330d Mild-Hybrid xDrive, 320e Plug-in Hybrid, 330e Plug-in Hybrid, 330e Plug-in Hybrid xDrive
• 3 Series Touring G21, G81 from 07.2019 onwards - 320i, 330i, M340i xDrive, 320d, 320d Mild-Hybrid, 320d xDrive, 320d Mild-Hybrid xDrive, 330d, 330d xDrive, 320e Plug-in Hybrid, 320e Plug-in Hybrid xDrive, 330e Plug-in Hybrid, 330e Plug-in Hybrid xDrive, M340d Mild-Hybrid xDrive

Ideal for

• Fast-road and B-road driving where control and confidence matter
• Daily commuting and long-distance touring
• Cars that carry passengers or luggage regularly
• Owners wanting OE-quality ride with a performance edge

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

We verify fitment before shipping. Provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm this BILSTEIN B6 rear damper suits your vehicle.

Part numbers and identifiers

• Part number: 24-303347
• Reference: BILSTEIN-24-303347
• EAN: 4025258856113
• UPC: 651860863818

Search-friendly terms

BMW G20 rear damper, G21 rear shock, G42 suspension upgrade, G81 rear shock, BMW 3 Series shock absorber, BMW 2 Series shock, ALPINA B3 rear damper, M340i rear shock, 330e PHEV rear damper, 320d rear shock, 330d rear shock, xDrive rear suspension, passive suspension damper, non adaptive damping, OE quality upgrade, direct fit rear shock, bottom eye top pin, BILSTEIN B6 gas monotube.