Bilstein 46-274922 Suspension Shock Absorber Conversion Kit - Rear

Bilstein B6 4600 Rear Shock Conversion Kit

Bilstein B6 4600 part number 46-274922 is a rear suspension shock absorber conversion kit for vehicles originally equipped with Nivomat load-leveling shocks. It replaces the OE self-leveling setup with a standard coil spring suspension while restoring factory ride height and improving ride quality.

Key Features

• Includes (2) B6 4600 monotube shock absorbers
• Includes (2) springs to restore factory ride height after Nivomat removal
• Non-adjustable damping for consistent rear suspension response
• 46mm body diameter with smooth-body, non-coilover design
• Velocity-sensitive digressive piston reacts to changing road conditions
• Yellow painted finish with blue straight boot
• Rear position application

Product Details

The Bilstein B6 4600 line is built for OE-style replacement applications where the original rear Nivomat system is being converted to a standard coil spring suspension. By removing the load-leveling damper and installing the included springs and monotube shocks, this kit restores the rear spring rate and returns the vehicle to proper ride height. Part number 46-274922 is engineered for a controlled, stable feel with improved handling and comfort over worn or removed self-leveling components.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible Vehicles

• Fits 2003-2006 Cadillac Escalade ESV, rear; use to convert vehicles with Nivomat self leveling suspension to standard coil spring suspension
• Fits 2002-2006 Cadillac Escalade EXT, rear; use to convert vehicles with Nivomat self leveling suspension to standard coil spring suspension
• Fits 2002-2006 Chevrolet Avalanche 1500, rear; use to convert vehicles with Nivomat self leveling suspension to standard coil spring suspension
• Fits 2000-2006 Chevrolet Suburban 1500, rear; use to convert vehicles with Nivomat self leveling suspension to standard coil spring suspension
• Fits 2000-2006 GMC Yukon XL 1500, rear; use to convert vehicles with Nivomat self leveling suspension to standard coil spring suspension

Common Issues This Kit Addresses

• Rear ride height sag after Nivomat shock removal
• Reduced rear spring rate from deleting the OE load-leveling damper
• Worn or failing self-leveling rear shocks
• Uneven rear suspension response on loaded vehicles
• Loss of ride comfort and handling control in the rear suspension

Installation Notes

Install at the rear only and verify the vehicle is equipped with Nivomat self-leveling suspension before ordering. This conversion kit is intended to replace the original rear load-leveling setup with standard coil spring suspension components. Professional installation is recommended, and the suspension should be inspected for worn mounts, springs, and related hardware during service.

Quality Assurance

Bilstein B6 4600 shocks use a monotube internal design and a velocity-sensitive digressive piston for consistent damping response. The B6 4600 series is a dedicated replacement line for OE suspension conversions, and part number 46-274922 is built to match the listed rear applications.