Stabilus 4B-029727 Hatch Lift Support

Stabilus Liftgate Gas Strut for GM SUVs

This Stabilus gas strut is built for liftgate support on select Chevrolet, GMC, Buick, Oldsmobile, Saab, and Isuzu applications. The 4B-029727 uses a 725 N (163 lb) force rating, plastic socket connections, and OE-style dimensions for direct replacement service.

Key Features

• Brand: Stabilus
• Part number: 4B-029727
• Force rating: 725 N / 163 lb
• Extended length: 20.079 in (510 mm)
• Compressed length: 12.598 in (320 mm)
• Rod diameter: 0.394 in (10 mm)
• Tube diameter: 0.866 in (22 mm)
• Plastic socket rod and tube connections
• OE-style replacement for liftgate support service

Detailed Description

The Stabilus 4B-029727 is a gas spring designed for liftgate applications on 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, 2005-2009 Saab 9-7x, 2008 Isuzu Ascender, 2004-2007 Buick Rainier, and 2002-2004 Oldsmobile Bravada. It is specified with a 510 mm extended length, 320 mm compressed length, 10 mm rod diameter, and 22 mm tube diameter, making it a precise replacement for vehicles that use this mounting style and force rating. This part cross-references Tuff Support 612248 for the same application.

Common Uses

• Restores liftgate support when the hatch no longer stays open
• Addresses slow, weak, or uneven liftgate movement
• Helps reduce sagging liftgate operation on GM SUVs
• Replaces worn gas struts that lose pressure over time
• Supports consistent opening and closing effort

Installation Notes

Verify the existing strut length, end fittings, and force rating before installation. This 4B-029727 uses plastic socket connections at both ends, so confirm the vehicle’s mounting points match the OE-style attachment design. For fitment-specific searches, this part is commonly selected for Chevrolet Trailblazer liftgate support, GMC Envoy rear hatch service, and Buick Rainier liftgate replacement applications.

Quality Assurance

Stabilus is a recognized OE supplier of gas springs and lift support components. The 4B-029727 is built to match the listed dimensions and force specification for direct replacement use on the confirmed vehicle applications.