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Dorman 949-542 Air Spring to Coil Spring Conversion Kit - Rear
| Brand | Dorman 949-542 |
|---|---|
| Position | Rear |
| Bushing Color | Black |
| Spring Material | Cold wound steel |
| Suspension Grade Type | Standard |
| Spring Color | Red |
| End 1 Spring Type | Closed |
| End 2 Spring Type | Closed |
| Bushing Material | Rubber |
| Spring Type | Compression |
| Package Contents | 2 springs |
| Fits | Chevrolet, GMC, and Isuzu · 16 vehicles |
Converts air suspension. Replaces a failing air setup with a conventional coil spring design.
Cold wound steel. Corrosion-resistant spring construction helps maintain a smooth ride.
Standard suspension grade. Built for everyday service with closed spring ends and rubber bushings.
Cross-references Arnott Industries C-2285, Unity Automotive 30-514800-HD and 4J-0019K for the same application. See all 4.
Air Suspension Conversion Kit
Restore a conventional rear suspension setup with this Dorman air spring to coil spring conversion kit. It replaces a failing air suspension with cold wound steel springs and rubber bushings for a standard ride height and a smoother driving feel.
Fits 2002-2006 Chevrolet Trailblazer EXT, rear; 2002-2006 GMC Envoy XL, rear; 2003-2006 Isuzu Ascender, rear; and 2004-2005 GMC Envoy XUV, rear. This part number is 949-542.
Key Features
- Converts air suspension to a conventional coil spring setup.
- Cold wound steel springs provide corrosion-resistant construction.
- Standard suspension grade for everyday driving use.
- Closed spring ends and rubber bushings support stable installation.
- Fits rear applications for select Chevrolet, GMC, and Isuzu models.
Detailed Description
Dorman 949-542 is an air spring to coil spring conversion kit for vehicles with failing rear air suspension components. It is built with cold wound steel springs and rubber bushings, and the red spring finish helps identify the parts during service. For owners of Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, and Isuzu Ascender models, this kit provides a direct path away from air suspension repair costs and back to a conventional spring setup.
This part cross-references Arnott Industries C-2285 and Unity Automotive 30-514800-HD for the same application.
What It Helps Solve
- Sagging rear ride height caused by worn air suspension components.
- Repeated air spring failures that increase repair expense.
- Loss of conventional spring support after air system wear.
- Service needs on rear suspension systems with spring-only conversion requirements.
Installation Notes and Tips
Verify rear fitment by model and year before installation. This kit is listed for springs-only applications, so confirm the vehicle configuration matches the fitment notes. Inspect related suspension components for wear before completing the conversion.
Quality Assurance
Dorman manufactures replacement suspension components for service and repair applications. Part number 949-542 is built as a standard-grade conversion solution for restoring conventional spring operation.
| Year | Make | Model | Wheel Base | Position | Notes |
|---|---|---|---|---|---|
| 2006 | Chevrolet | Trailblazer EXT | — | Rear | Springs Only |
| 2006 | GMC | Envoy XL | — | Rear | Springs Only |
| 2006 | Isuzu | Ascender | 129.0" | Rear | Springs Only |
| 2005 | Chevrolet | Trailblazer EXT | — | Rear | Springs Only |
| 2005 | GMC | Envoy XL | — | Rear | Springs Only |
| 2005 | GMC | Envoy XUV | — | Rear | Springs Only |
| 2005 | Isuzu | Ascender | 129.0" | Rear | Springs Only |
| 2004 | Chevrolet | Trailblazer EXT | — | Rear | Springs Only |
| 2004 | GMC | Envoy XL | — | Rear | Springs Only |
| 2004 | GMC | Envoy XUV | — | Rear | Springs Only |
| 2004 | Isuzu | Ascender | 129.0" | Rear | Springs Only |
| 2003 | Chevrolet | Trailblazer EXT | — | Rear | Springs Only |
| 2003 | GMC | Envoy XL | — | Rear | Springs Only |
| 2003 | Isuzu | Ascender | 129.0" | Rear | Springs Only |
| 2002 | Chevrolet | Trailblazer EXT | — | Rear | Springs Only |
| 2002 | GMC | Envoy XL | — | Rear | Springs Only |
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