Bilstein 19-028637 Suspension Shock Absorber - Rear

Bilstein B4 Rear Shock for BMW 7 Series

The Bilstein B4 OE Replacement shock absorber restores factory-style ride control for select BMW 7 Series models. This rear damper is built to meet or exceed OE standards while preserving the original handling balance of the vehicle.

• Bilstein B4 OE Replacement series
• Rear suspension shock absorber
• Twintube internal design
• Black paint finish
• Upper mount type: stem
• Lower mount type: eye 14.2mm
• Boot not included

OE Replacement Details

Bilstein B4 OE Replacement dampers are engineered for drivers who want to return the suspension to original ride quality without changing the vehicle’s character. On BMW 735i, 735iL, 740i, 740iL, and 750iL applications, this rear shock absorber supports controlled damping and consistent road feel. Part number 19-028637 is a direct OE-style replacement for rear suspension service on these BMW models.

This part cross-references KYB 341129 for the same application.

Vehicle Fitment

• Fits 1993-1994 BMW 740i, rear, without electronic or self-leveling suspension; B4 OE Replacement
• Fits 1993-1994 BMW 740iL, rear, without electronic or self-leveling suspension; B4 OE Replacement
• Fits 1988-1992 BMW 735i, rear, without electronic or self-leveling suspension; B4 OE Replacement
• Fits 1988-1992 BMW 735iL, rear, without electronic or self-leveling suspension; B4 OE Replacement
• Fits 1988-1989 BMW 750iL, rear, without electronic or self-leveling suspension; B4 OE Replacement
• Fits 1987 BMW 735i, rear; B4 OE Replacement

What This Shock Absorber Helps Address

• Excessive rear-end bounce after bumps
• Reduced damping control on worn suspension
• Uneven ride quality from aging OE shocks
• Rear suspension noise caused by worn shock performance
• Loss of stability during braking and cornering

Installation Notes

Confirm rear suspension configuration before ordering, since this Bilstein shock is for vehicles without electronic or self-leveling suspension where noted. Verify upper stem and lower eye 14.2mm mounting points, and inspect related bushings and hardware during replacement. For BMW 740i, 740iL, 735i, 735iL, and 750iL service, replacing shocks in pairs is standard practice to maintain balanced rear suspension response.

Quality Assurance

Bilstein B4 OE Replacement dampers are built to OE-level standards for fit, function, and ride quality. The B4 line is Bilstein’s OE replacement series, focused on restoring original suspension behavior for factory-equipped vehicles.