Bilstein B4 19-227634 Front Right Suspension Shock Absorber Strut (OSF RH) for BMW 6 Series F12 Cabriolet/Convertible 2010-2018 640i 650i 640d – OEM Spec Gas Pressure Twin-Tube Damper Replacement

Bilstein 19-227634 B4 Offside Front Damper for BMW F12 6 Series Cabriolet

Bring back the tight, composed feel your BMW deserves with the Bilstein 19-227634 B4 right-hand front damper. Engineered as a like-for-like OE-spec unit for the F12 6 Series cabriolet, this offside front strut restores factory comfort, steering precision and stability on 640i, 650i and 640d models. If your drop-top feels bouncy, crashy or vague, this direct-fit Bilstein replacement transforms the way it rides and handles without altering the original character.

We fit these at MJ Modifications and they simply deliver. Customers consistently report a smoother ride, sharper front-end response and renewed confidence on British roads. For a dependable suspension refresh on the F12 chassis, the B4 is our go-to choice.

Why this Bilstein unit is a smart upgrade

• Right-hand front fitment for the F12 6 Series cabriolet OSF position
• OE-level comfort with crisp, controlled damping for daily driving and motorway miles
• Gas-pressurised twin-tube design for consistent performance under load
• Direct replacement with original-style top pin and bottom fork mountings
• Built to OEM standards for reliability, longevity and safety

Construction and benefits

• Gas pressure technology helps reduce fade and keeps the front end planted
• Twin-tube layout delivers supple low-speed compliance and stability at speed
• Balanced damping restores confident braking, turn-in and mid-corner control
• High-quality materials for durability through UK weather and road conditions

Technical details

Vehicle compatibility

BMW 6 Series Cabriolet F12 (12.10 to 06.18) suitable for 640i, 650i and 640d petrol and diesel variants.

Tip for best results and even braking stability, replace both front dampers together. The matching left-hand front part is Bilstein 19-227627.

Fitting and support

Professional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

Fitment check before dispatch

We will confirm compatibility before shipping. Add your UK registration or the last 7 of your VIN at checkout to ensure this OSF damper suits your F12 6 Series.

Part numbers and identifiers

• Part number 19-227634 Bilstein 19-227634
• EAN 4025258718862
• UPC 651860719047
• Brand Bilstein

Search-friendly terms

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