Stabilus 4B-030091 Back Glass Lift Support

Back Glass Lift Support for GM SUVs

This Stabilus back glass lift support is built for rear glass applications that need controlled opening and steady hold. With a 339 N (76 lb) force rating, 447 mm extended length, and plastic socket connections, it is a direct-fit style replacement for select Chevrolet, GMC, and Cadillac models with rear glass defrost terminals not present.

• Brand: Stabilus
• Part number: 4B-030091
• Force rating: 339 N / 76 lb
• Extended length: 447 mm (17.598 in)
• Compressed length: 288 mm (11.339 in)
• Rod diameter: 8 mm (0.315 in)
• Tube diameter: 18 mm (0.709 in)
• Rod connection: plastic socket
• Tube connection: plastic socket
• OE-style replacement for rear glass lift support service

Fitment and application details

Fits 1999 Cadillac Escalade, N/A, w/o electrical terminals for defrost. Fits 1992-1999 Chevrolet C1500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 Chevrolet C2500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 Chevrolet K1500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 Chevrolet K2500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1995-1999 Chevrolet Suburban 1500, N/A, w/o Electrical Terminals for Defrost. Fits 1995-1999 Chevrolet Tahoe, N/A, w/o electrical terminals for defrost. Fits 1994-1999 GMC C1500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 GMC C2500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 GMC K1500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 GMC K2500 Suburban, N/A, w/o electrical terminals for defrost. Fits 1994-1999 GMC Yukon, N/A, w/o electrical terminals for defrost. Fits 1995-1997 Chevrolet Silverado, N/A. Fits 1994 Chevrolet Blazer, N/A, w/o electrical terminals for defrost. Fits 1992-1993 Chevrolet Blazer, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 Chevrolet C2500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 Chevrolet K1500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 Chevrolet K2500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 GMC C1500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 GMC C2500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 GMC K1500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 GMC K2500 Suburban, N/A, w/o Electrical Terminals for Defrost. Fits 1992-1993 GMC Yukon, N/A, w/o Electrical Terminals for Defrost.

This part cross-references AMS Automotive 4184 and Focus Auto Parts 84184 for the same application. The Stabilus 4B-030091 is also referenced by common aftermarket numbers used for rear glass lift support replacement on these GM platforms.

What this lift support helps fix

• Rear glass that will not stay open
• Liftgate glass that drops too quickly
• Weak or worn gas strut performance
• Hard-to-lift back glass on GM SUVs and trucks
• Noise or inconsistent support when opening the rear glass

Installation notes and tips

Verify the vehicle has no electrical terminals for rear defrost before ordering. Match the compressed length, extended length, rod diameter, tube diameter, and plastic socket connections to the original support before installation. Inspect the mounting points and surrounding hardware for wear or damage, and replace any worn attachment points before fitting the new lift support. Confirm the rear glass opens and closes smoothly after installation.

Quality assurance

Stabilus is a recognized OE supplier for gas springs and lift supports, and this back glass lift support is built to match the specified force and dimensional requirements for the listed GM applications. Part number 4B-030091 is specified for rear glass service on select Chevrolet, GMC, and Cadillac models.