AiYiGu Rear Hatch Struts for 2002–2009 Chevrolet Trailblazer & GMC Envoy — Pair, Direct-Fit Gas Shock Replacements

If your Trailblazer, Envoy, Rainier, Ascender, Bravada or Saab 9-7X liftgate no longer holds itself open or rises sluggishly, worn hatch shocks are often the culprit. These AiYiGu replacement gas struts plug into the factory mounting points (no screws required) and match the original dimensions so the hatch opens and closes with the correct geometry and damping. The set ships as two pieces—left and right—and replaces OEM part numbers such as 4573 and SG330046.

How will these struts affect everyday use of my rear hatch?

Replacing failing hatch struts brings back secure support when you open the liftgate, reduces abrupt drops, and improves the feel of the hatch while loading cargo. You’ll notice smoother, more consistent motion and less strain when lifting and lowering the door.

• Restores even, damped opening and closing.
• Prevents sudden slamming of a heavy liftgate.
• Reduces manual effort to hold or prop the hatch open.

Will these AiYiGu shocks fit my vehicle and how do I confirm fitment?

These struts are compatible with Chevrolet Trailblazer (2002–2009), GMC Envoy (2002–2009), Buick Rainier (2004–2007), Isuzu Ascender (2004–2008), Oldsmobile Bravada (2002–2004), and Saab 9-7X (2005–2009). Match the compressed and extended lengths to the originals to be certain of fit.

• Compressed length: 12.68 inches; extended length: 20.16 inches.
• Direct-replacement for OEM 4573 and SG330046 numbers.
• Sold as a pair (left and right); screws or bolts are not included because factory fittings are reused.

How difficult is installation and what tools do I need?

Installation is straightforward and typically requires only basic tools and a helper or prop to safely hold the heavy liftgate. AiYiGu struts use the vehicle’s original ball-socket style mounts—no new fasteners are required—so replacement is fast when you follow safety precautions.

• Prop the hatch with a support rod or have an assistant hold it before removing old struts.
• Use a flathead screwdriver to pry off the retaining clips and detach the old brackets.
• Snap the new strut ends onto the factory ball studs until they click into place.

What warranty and support come with AiYiGu rear hatch struts?

AiYiGu backs these hatch struts with a two-year warranty against defects in materials and workmanship, and offers customer support if you encounter issues. That coverage gives added confidence after installation.

• Two-year limited warranty from date of purchase.
• Customer service available for fitment or product questions.
• Replacements cover manufacturing defects, per warranty terms.

Who is this for: This AiYiGu rear hatch strut pair is aimed at owners and DIY mechanics of mid-2000s GM SUVs who need a reliable, OEM-dimension replacement to restore liftgate support and motion. It suits anyone replacing worn or leaking struts on Trailblazer, Envoy, Rainier, Ascender, Bravada, or Saab 9-7X models who wants an easy swap using the vehicle’s existing mounts and original hardware.