Bilstein 19-240329 Suspension Shock Absorber - Rear Left

Bilstein B4 Rear Left Shock for BMW X5/X6

The Bilstein B4 OE Replacement shock absorber, part number 19-240329, is built to restore original ride quality and handling on select BMW applications. It is a rear left suspension shock absorber with a twintube internal design and black paint finish, made for standard suspension setups on the BMW X5 and BMW X6.

Key Features

• Bilstein B4 OE Replacement series for factory-style ride restoration
• Twintube internal design for consistent damping response
• Rear left position shock absorber
• Black paint finish
• Upper stem mount and lower eye mount, 15.8 mm
• No boot included
• Part number 19-240329

Product Details

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards while maintaining the original ride characteristics of the vehicle. This shock absorber is a direct-fit suspension replacement for BMW X5 and BMW X6 models with standard suspension, helping preserve the steering feel, body control, and road comfort expected from the factory setup. The Bilstein B4 line focuses on OE-style performance, making it a practical choice when replacing a worn rear shock on a BMW X5 or BMW X6.

This part cross-references BMW OE numbers 33 52 6 851 755 and 33 52 6 867 865 for the same application. The part number 19-240329 is also a useful reference when verifying the correct rear left shock absorber for your vehicle.

What It Helps Address

• Excessive rear-end bounce after bumps
• Reduced damping control from a worn shock absorber
• Uneven ride quality on standard suspension BMW X5 and BMW X6 models
• Loss of factory-like handling response
• Noisy or unstable rear suspension behavior caused by shock wear

Installation Notes

Fits 2014-2018 BMW X5, rear left, standard suspension; B4 OE Replacement. Fits 2015-2019 BMW X6, rear left, standard suspension; B4 OE Replacement. Verify mount style, suspension type, and side before installation. The upper stem mount and lower eye mount should match the original equipment configuration on the vehicle. Part number 19-240329 should be confirmed against the existing shock and OE reference numbers before ordering.

Quality Assurance

Bilstein B4 OE Replacement dampers are built to OE standards for fit and performance, with the brand’s focus on restoring original vehicle behavior rather than changing suspension character. For BMW X5 and BMW X6 owners seeking a factory-style rear shock replacement, 19-240329 provides an OE-replacement solution backed by Bilstein engineering.