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Silver cylindrical rear shock absorber with piston rod and mounting eyelets

Unity

Unity 251120 Rear Shock Absorber

SKU CH-TV6Z-S14KW

Twin-tube gas-charged rear shock absorber replaces OE units on 2002-2009 Chevrolet, GMC, Isuzu and Oldsmobile models with rear coil springs

  • Direct OE replacement for multiple GM and Isuzu SUVs
  • Twin-tube gas-charged design restores factory ride control
  • Fits 2002-2009 Trailblazer, Envoy, Bravada and Ascender models
  • 50 years of aftermarket suspension manufacturing behind every unit
  • Built for trouble-free installation and long-lasting reliability

Product Identity

The Unity 251120 is a new twin-tube gas-charged rear shock absorber designed as a direct replacement for original equipment units on specific GM and Isuzu SUVs and pickups built between 2002 and 2009. It targets owners and mechanics restoring ride control on high-mileage vehicles from the listed model years.

Fitment Guidance

This part suits vehicles equipped with rear coil springs from the 2003-2006 Chevrolet SSR, 2002-2009 Trailblazer and Trailblazer EXT, 2002-2009 GMC Envoy, Envoy XL and Envoy XUV, 2003-2008 Isuzu Ascender and 2002-2004 Oldsmobile Bravada. Buyers whose vehicles use rear leaf springs or fall outside these model-year ranges should look elsewhere.

Deciding Specification

The absorber is engineered exclusively for applications with rear coil springs; that single suspension-type constraint determines whether the 251120 will install and function correctly on the intended vehicle.

Highlights

  • Direct OE replacement for multiple GM and Isuzu SUVs
  • Twin-tube gas-charged design restores factory ride control
  • Fits 2002-2009 Trailblazer, Envoy, Bravada and Ascender models
  • 50 years of aftermarket suspension manufacturing behind every unit
  • Built for trouble-free installation and long-lasting reliability

Specifications

BrandUNITY

Questions about this item

How does the twin-tube gas-charged design hold up under repeated heavy loads on a 2006 Trailblazer?

The gas charge resists aeration so damping stays consistent during long towing or rough-road sessions on 2002-2009 models.

Will the unit run hot or make noise after a full day on a 2004 Envoy XL?

Twin-tube construction dissipates heat through the outer shell and the gas charge minimises foaming, keeping operation quiet on 2002-2006 XLs.

What suspension style must my 2003 SSR already have for this 251120 to bolt on?

It fits only vehicles equipped with rear coil springs, as noted for the 2003-2006 SSR and 2002-2009 Trailblazer.

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