Bilstein 19-274379 Suspension Shock Absorber - Rear

Bilstein B4 Rear Shock Absorber for BMW 530i and 540i

The Bilstein B4 OE Replacement rear shock absorber, part number 19-274379, is engineered to restore original ride quality and handling on select BMW 5 Series models. It is built for rear suspension use on vehicles with sport suspension and without electronic suspension.

Key Features

• Bilstein B4 OE Replacement series for factory-style ride restoration
• Twintube internal design for consistent damping response
• Black painted finish
• Rear position shock absorber
• Upper stem mount and lower eye mount
• Boot not included
• Direct replacement for BMW OE part number 33 52 6 866 617

Product Details

Bilstein B4 OE Replacement dampers are built to meet or exceed OE standards while preserving the original driving feel of the vehicle. This rear shock absorber is a direct-fit suspension shock absorber for BMW 530i, BMW 530i xDrive, BMW 540i, BMW 540i xDrive, and BMW 540d xDrive applications listed below. The Bilstein 19-274379 is a practical choice when the goal is to return the rear suspension to factory-like control, comfort, and road manners without changing the vehicle’s intended character.

Compatible With: 2017-2023 BMW 530i rear, sport suspension without electronic suspension; 2017-2023 BMW 530i xDrive rear, sport suspension without electronic suspension; 2017-2023 BMW 540i rear, sport suspension without electronic suspension; 2017-2023 BMW 540i xDrive rear, sport suspension without electronic suspension; 2018 BMW 540d xDrive rear, sport suspension without electronic suspension.

This part cross-references BMW OE 33 52 6 866 617 for the same application.

Common Replacement Reasons

• Rear suspension bounce or reduced damping control
• Excessive body movement over bumps and uneven pavement
• Loss of original ride comfort on BMW 530i and BMW 540i models
• Worn OE shock absorber on sport suspension vehicles
• Uneven rear-end stability during braking or cornering

Installation Notes and Tips

Verify rear fitment by model, year, and suspension configuration before installation. This shock absorber is for rear use only and is specified for sport suspension without electronic suspension. Confirm the upper stem and lower eye mounting points match the original part, and inspect related suspension components such as mounts and bushings during replacement.

Quality Assurance

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards and are backed by Bilstein’s established suspension manufacturing quality. Part number 19-274379 is built as an OE-style replacement for BMW rear suspension service.