FCS 84574 Liftgate Lift Support

Liftgate Support for Extended-Body SUVs

FCS 84574 is a liftgate lift support built for specific extended-body SUV applications that need controlled rear hatch movement. With a compressed length of 16.38 inches, an extended length of 23.23 inches, and a 6.85-inch stroke, it is sized to match the liftgate geometry on the listed vehicles.

Compatible With 2002-2006 Chevrolet Trailblazer EXT, 2002-2006 GMC Envoy XL, 2003-2006 Isuzu Ascender, 2004-2005 GMC Envoy XUV, and 2007-2008 Isuzu Ascender w/ Extended Version. FCS 84574 is a direct-fit liftgate support for rear access panels that require stable opening and closing action.

Key Features

• Compressed length: 16.38 inches
• Extended length: 23.23 inches
• Stroke length: 6.85 inches
• Application-specific sizing for listed liftgate configurations
• FCS 84574 for rear liftgate support service

Product Details

FCS 84574 is a gas-charged liftgate support intended for rear body door service on the listed Chevrolet, GMC, and Isuzu models. The length specifications are the most important fitment factors for this part, helping ensure the liftgate opens to the correct height and stays supported during use. This part number is commonly searched as FCS 84574 liftgate lift support for Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, and Isuzu Ascender applications.

FCS is the brand line for this lift support, and this part is cataloged for extended-body rear liftgate applications rather than standard-length versions. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Addresses

• Liftgate drops instead of staying open
• Rear hatch feels heavy or difficult to raise
• Liftgate opens unevenly or loses support
• Worn support no longer holds the hatch at full extension
• Rear access panel movement becomes inconsistent on extended-body models

Installation Notes and Tips

Verify the vehicle’s body style before ordering, especially on Isuzu Ascender and GMC Envoy applications where extended versions use different support lengths. Match the compressed length, extended length, and stroke length to the original support before installation. Confirm the liftgate opens and closes smoothly after replacement.

Quality Assurance

FCS 84574 is cataloged to the listed vehicle applications and dimensional specifications for accurate rear liftgate support replacement. Use the fitment details to confirm the correct part for your Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, or Isuzu Ascender.