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Dorman 34240 A/C Compressor Bypass Pulley
Reliable A/C Compressor Bypass Pulley for Select GM and Saab Models
The Dorman 34240 A/C Compressor Bypass Pulley is designed to restore proper belt function in your vehicle's HVAC system. Engineered with durable materials and complete mounting hardware, this pulley is compatible with various Buick, Chevrolet, GMC, Oldsmobile, and Saab models.
- Constructed with an aluminum bracket and a plastic pulley for strength and durability
- Outside diameter measures 103 mm for precise fitment
- Includes mounting bracket and hardware for straightforward installation
- Compatible with serpentine belt systems
- Designed specifically for Tsra12 compressor types
- Installation instructions included for ease of use
- Package contains one pulley, bracket, and all necessary hardware
Durable Materials and Precise Fitment
The Dorman 34240 bypass pulley features a robust aluminum bracket paired with a plastic pulley, balancing strength and weight to ensure reliable operation. Its 103 mm outside diameter matches OEM specifications, providing a seamless replacement for the original part. This pulley is engineered for serpentine belt systems and designed to work with Tsra12 compressor types, making it suitable for a range of vehicles including the Buick Rainier, Chevrolet Trailblazer, GMC Envoy, Oldsmobile Bravada, and Saab 9-7x.
Compatible Vehicles and Applications
This A/C compressor bypass pulley is compatible with the following makes and models:
- Buick Rainier
- Chevrolet Trailblazer, Trailblazer EXT
- GMC Envoy, Envoy XL, Envoy XUV
- Oldsmobile Bravada
- Saab 9-7x
Common Issues Addressed by This Pulley
- Worn or damaged A/C compressor pulley causing belt slippage
- Broken or seized compressor clutch requiring bypass
- Noise or vibration from faulty pulley components
- Failure of original pulley bracket or hardware
- Serpentine belt misalignment due to pulley wear
Installation Notes and Tips
The Dorman 34240 includes all necessary mounting hardware and a bracket to simplify installation. Installation instructions are provided to guide through the process. Ensure the serpentine belt is properly routed and tensioned after replacing the pulley. It is recommended to inspect the belt and related components for wear during installation.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards. The 34240 A/C compressor bypass pulley undergoes quality checks to ensure durability and fitment accuracy. Installation instructions help maintain proper setup. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
|---|---|
| Part Number | 34240 |
| Belt Type | Serpentine |
| Compressor Type | Tsra12 |
| Installation Instructions Included | Yes |
| Material | Aluminum Bracket |
| Material | Plastic Pulley |
| Mounting Bracket Included | Yes |
| Mounting Hardware Included | Yes |
| Number of Pulleys Included | 1 |
| Outside Diameter | 103 |
| Package Contents | Pulley; Bracket; and Installation Hardware |
This part fits 34 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Buick | Rainier | 4.2L | L6 | N/A | |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2007 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2007 | Saab | 9-7x | 4.2L | L6 | N/A | |
| 2006 | Buick | Rainier | 4.2L | L6 | N/A | |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | |
| 2006 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2006 | GMC | Envoy XL | 4.2L | L6 | N/A | |
| 2006 | Saab | 9-7x | 4.2L | L6 | N/A | |
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | |
| 2005 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | |
| 2005 | Saab | 9-7x | 4.2L | L6 | N/A | |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | |
| 2004 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | |
| 2004 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2004 | GMC | Envoy XL | 4.2L | L6 | N/A | |
| 2004 | GMC | Envoy XUV | 4.2L | L6 | N/A | |
| 2004 | Oldsmobile | Bravada | N/A | |||
| 2003 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | |
| 2003 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | |
| 2003 | Oldsmobile | Bravada | N/A | |||
| 2002 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | |
| 2002 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | |
| 2002 | GMC | Envoy | 4.2L | L6 | N/A | |
| 2002 | GMC | Envoy XL | 4.2L | L6 | N/A | |
| 2002 | Oldsmobile | Bravada | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.