StrongArm 4575 Back Glass Lift Support

Brand StrongArm 4575
Compressed Length 13.97
Cylinder Outside Diameter 15.0
End 1 Type Ball Socket (Nylon) 8mm
End 2 Type Ball Socket (Nylon) 8mm
Extended Length 19.97
Inner Shaft Diameter 6.0
Internal Rebound Spring No
Materials Rubber
Materials Teflon
Maximum Force 42.0
Outer Cylinder Color Black
Outer Cylinder Material Steel
Stroke Length 6.0
Universal Or Specific Fit Specific
Fits Saturn, Chevrolet, GMC, and Isuzu · 34 vehicles

Specific fit. Custom engineered for a precise replacement application.

Steel cylinder. Durable construction with a black finish for dependable support.

Smooth operation. Pressurized design delivers steadier, longer-lasting lift support.

Cross-references AMS Automotive 4575, 510-968 and 819-6188 for the same application. See all 7.

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Back Glass Lift Support for Specific Fit Applications

StrongArm 4575 is a specific-fit back glass lift support for rear window glass applications on select GM and Isuzu vehicles. It uses a pressurized cylinder design to help hold the back glass in position and deliver smooth, controlled operation.

  • Specific-fit back glass lift support for rear window glass
  • Compressed length: 13.97 in.; extended length: 19.97 in.
  • Stroke length: 6.0 in. with 42.0 maximum force
  • Black steel outer cylinder with nylon 8 mm ball socket ends
  • Rubber and Teflon materials for consistent movement
  • No internal rebound spring

Vehicle Fitment

  • Fits 2003-2007 Isuzu Ascender, N/A
  • Fits 2005-2007 Saturn Relay, N/A
  • Fits 2002-2006 Chevrolet Trailblazer EXT, N/A
  • Fits 2002-2006 GMC Envoy XL, N/A
  • Fits 2004-2005 GMC Envoy XUV, N/A

Detailed Description

StrongArm 4575 is engineered as a direct replacement back glass lift support for select Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, Saturn Relay, and Isuzu Ascender models. The pressurized cylinder construction helps maintain rear glass position during opening and closing, while the steel outer cylinder and nylon ball socket ends support reliable attachment at the liftgate glass mounting points. This part cross-references Monroe Shocks & Struts 901652 for the same application.

What This Part Helps Address

  • Rear glass that will not stay open
  • Back window glass that drops unexpectedly
  • Weak or slow lift support movement
  • Uneven or inconsistent rear glass operation
  • Noise or binding from a worn lift support

Installation Notes and Quality

Verify compressed length, extended length, stroke, and 8 mm ball socket end type before installation. Replace in pairs when servicing both sides of the rear glass support system to maintain balanced operation. StrongArm states that each lift support is custom engineered and manufactured beyond industry standards for smoother operation and longer-lasting performance.

StrongArm 4575 is built for specific-fit applications and is intended to match the original mounting style on the listed vehicles. Confirm vehicle fitment by year, make, and model before ordering.

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersWheel BasePositionNotes
2007IsuzuAscender4.2LL6N/A
2007SaturnRelay2N/A
2007SaturnRelay3N/A
2007SaturnRelay1N/A
2006ChevroletTrailblazer EXT129.0"N/A
2006GMCEnvoy XLSLT129.0"N/A
2006GMCEnvoy XLSLE129.0"N/A
2006GMCEnvoy XLDenali129.0"N/A
2006IsuzuAscender113.0"N/A
2006IsuzuAscender129.0"N/A
2006SaturnRelay2N/A
2006SaturnRelay3N/A
2005ChevroletTrailblazer EXT129.0"N/A
2005GMCEnvoy XLSLT129.0"N/A
2005GMCEnvoy XLSLE129.0"N/A
2005GMCEnvoy XLDenali129.0"N/A
2005GMCEnvoy XUV129.0"N/A
2005IsuzuAscender113.0"N/A
2005IsuzuAscender129.0"N/A
2005SaturnRelay2N/A
2005SaturnRelay3N/A
2004ChevroletTrailblazer EXT129.0"N/A
2004GMCEnvoy XLSLT129.0"N/A
2004GMCEnvoy XLSLE129.0"N/A
2004GMCEnvoy XUV129.0"N/A
2004IsuzuAscender113.0"N/A
2004IsuzuAscender129.0"N/A
2003ChevroletTrailblazer EXT129.0"N/A
2003GMCEnvoy XLSLT129.0"N/A
2003GMCEnvoy XLSLE129.0"N/A
2003IsuzuAscender129.0"N/A
2002ChevroletTrailblazer EXT129.0"N/A
2002GMCEnvoy XLSLT129.0"N/A
2002GMCEnvoy XLSLE129.0"N/A
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4575510-968819-6188901652D4575D95156SG330052