Westar AS-7056 Air Suspension Spring - Rear

Brand Westar AS-7056
Position Rear
Fits Chevrolet, GMC, Saab, Buick, Isuzu, and Oldsmobile · 70 vehicles

OE-spec quality. Designed to meet or exceed OEM standards for fit and function.

New components only. Westar does not sell remanufactured units.

Air suspension spring. For replacement units or rebuilding existing assemblies.

Cross-references Arnott Industries A-2283, Arnott Industries A-2610 and Cardone Reman 4J5000A for the same application. See all 6.

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Westar AS-7056 Rear Air Suspension Spring

Restore rear ride height and suspension control with the Westar AS-7056 air suspension spring. Built for direct replacement use, this rear air spring is designed to meet or exceed OEM expectations for fit, function, and quality on supported applications.

Compatible with rear air suspension setups on the Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Buick Rainier, Isuzu Ascender, Trailblazer EXT, Envoy XL, Envoy XUV, and Oldsmobile Bravada, the Westar AS-7056 is a practical choice for replacing a worn or leaking rear air spring.

Key Features

  • Designed to meet or exceed OEM specifications for quality, fit, and function
  • All-new product construction; no remanufactured units
  • Built for performance that matches or exceeds OEM ride control for long service life
  • Rear air suspension spring for supported GM and Saab applications
  • Westar AS-7056 direct replacement part number for streamlined lookup

Detailed Description

The Westar AS-7056 air suspension spring is engineered for rear suspension applications where maintaining proper vehicle stance and ride quality matters. Westar states that its factories use quality components and follow strict industry standards, including ISO, QS, and TS processes. For buyers searching for a rear air spring for 2002-2009 Chevrolet Trailblazer, 2002-2009 GMC Envoy, or 2005-2009 Saab 9-7x, this part number provides a focused replacement option.

This part cross-references Arnott Industries A-2283 for the same application. The Westar AS-7056 also cross-references Dorman 949-050 for select rear air suspension applications.

What It Helps Fix

  • Rear end sagging from a leaking or worn air spring
  • Uneven ride height at the back of the vehicle
  • Loss of rear suspension support under load
  • Poor ride control caused by aging air suspension components
  • Air suspension warning symptoms tied to failed rear spring assemblies

Installation Notes and Tips

Verify the vehicle’s wheelbase and rear suspension configuration before ordering. This part fits 2002-2009 Chevrolet Trailblazer, rear, 113" wheel base; 2003-2006 Chevrolet Trailblazer, rear, 129" wheel base; 2002-2006 Chevrolet Trailblazer EXT, rear, 129" wheel base; 2002-2009 GMC Envoy, rear, 113" wheel base; 2002-2006 GMC Envoy XL, rear, 129" wheel base; 2004-2005 GMC Envoy XUV, rear, 129" wheel base; 2005-2009 Saab 9-7x, rear; 2004-2007 Buick Rainier, rear; 2003-2007 Isuzu Ascender, rear; and 2002-2004 Oldsmobile Bravada, rear.

Confirm the original part number and inspect related air suspension components for leaks, wear, or damage before installation. Proper system diagnosis helps ensure the new rear air spring performs as intended.

Quality Assurance

Westar positions this air suspension spring as a new replacement part built to strict manufacturing standards. The AS-7056 is produced to support OEM-level fit and function for rear suspension service on the listed Chevrolet Trailblazer, GMC Envoy, and related applications.

This part fits 70 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelWheel BasePositionNotes
2009ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2009ChevroletTrailblazerSS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2009GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2009Saab9-7xRearAIR SPRING - REAR
2008ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2008ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2008ChevroletTrailblazerSS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2008GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2008Saab9-7xRearAIR SPRING - REAR
2007BuickRainierRearAIR SPRING - REAR
2007ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2007ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2007ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2007ChevroletTrailblazerSS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2007GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2007IsuzuAscenderRearAIR SPRING - REAR
2007Saab9-7xRearAIR SPRING - REAR
2006BuickRainierRearAIR SPRING - REAR
2006ChevroletTrailblazer129.0"RearAIR SPRING - REAR; 129" Wheel Base
2006ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2006ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2006ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2006ChevroletTrailblazerSS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2006ChevroletTrailblazer EXT129.0"RearAIR SPRING - REAR; 129" Wheel Base
2006GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2006GMCEnvoy XL129.0"RearAIR SPRING - REAR; 129" Wheel Base
2006IsuzuAscenderRearAIR SPRING - REAR
2006Saab9-7xRearAIR SPRING - REAR
2005BuickRainierRearAIR SPRING - REAR
2005ChevroletTrailblazer129.0"RearAIR SPRING - REAR; 129" Wheel Base
2005ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2005ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2005ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2005ChevroletTrailblazer EXT129.0"RearAIR SPRING - REAR; 129" Wheel Base
2005GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2005GMCEnvoy XL129.0"RearAIR SPRING - REAR; 129" Wheel Base
2005GMCEnvoy XUV129.0"RearAIR SPRING - REAR; 129" Wheel Base
2005IsuzuAscenderRearAIR SPRING - REAR
2005Saab9-7xRearAIR SPRING - REAR
2004BuickRainierRearAIR SPRING - REAR
2004ChevroletTrailblazer129.0"RearAIR SPRING - REAR; 129" Wheel Base
2004ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2004ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2004ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2004ChevroletTrailblazerNorth Face113.0"RearAIR SPRING - REAR; 113" Wheel Base
2004ChevroletTrailblazer EXT129.0"RearAIR SPRING - REAR; 129" Wheel Base
2004GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2004GMCEnvoy XL129.0"RearAIR SPRING - REAR; 129" Wheel Base
2004GMCEnvoy XUV129.0"RearAIR SPRING - REAR; 129" Wheel Base
2004IsuzuAscenderRearAIR SPRING - REAR
2004OldsmobileBravadaRearAIR SPRING - REAR
2003ChevroletTrailblazer129.0"RearAIR SPRING - REAR; 129" Wheel Base
2003ChevroletTrailblazerBase113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003ChevroletTrailblazerLTZ113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003ChevroletTrailblazerNorth Face113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003ChevroletTrailblazer EXT129.0"RearAIR SPRING - REAR; 129" Wheel Base
2003GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2003GMCEnvoy XL129.0"RearAIR SPRING - REAR; 129" Wheel Base
2003IsuzuAscenderRearAIR SPRING - REAR
2003OldsmobileBravadaRearAIR SPRING - REAR
2002ChevroletTrailblazerLS113.0"RearAIR SPRING - REAR; 113" Wheel Base
2002ChevroletTrailblazerLT113.0"RearAIR SPRING - REAR; 113" Wheel Base
2002ChevroletTrailblazerLTZ113.0"RearAIR SPRING - REAR; 113" Wheel Base
2002ChevroletTrailblazerNorth Face113.0"RearAIR SPRING - REAR; 113" Wheel Base
2002ChevroletTrailblazer EXT129.0"RearAIR SPRING - REAR; 129" Wheel Base
2002GMCEnvoy113.0"RearAIR SPRING - REAR; 113" Wheel Base
2002GMCEnvoy XL129.0"RearAIR SPRING - REAR; 129" Wheel Base
2002OldsmobileBravadaRearAIR SPRING - REAR
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Arnott Industries — A-2283Arnott Industries — A-2610Cardone Reman — 4J5000ADorman — 949-050Suncore — 148G-15-HDSuncore — 148G-15-R