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Dorman 34226 A/C Compressor Bypass Pulley
| Brand | Dorman 34226 |
|---|---|
| Belt Type | Serpentine |
| Compressor Type | Msc130cvsg2; Msc105cvsg5 |
| Installation Instructions Included | Yes |
| Material | Aluminum Bracket |
| Material | Plastic Pulley |
| Mounting Bracket Included | Yes |
| Mounting Hardware Included | No |
| Number of Pulleys Included | 1 |
| Outside Diameter | 96 |
| Package Contents | Pulley and Bracket |
| Fits | Buick, Chevrolet, Pontiac, and Oldsmobile · 16 vehicles |
Bypass pulley. Lets the original drive belt stay in use when the compressor is inoperable.
Aluminum bracket. Plastic pulley construction balances strength with smooth belt operation.
Bracket included. Comes with the pulley and bracket for a complete replacement assembly.
Cross-references AP Exhaust 68474, Four Seasons 2243NK and Four Seasons 67474 for the same application. See all 13.
Dorman 34226 A/C Compressor Bypass Pulley
Dorman 34226 is an A/C compressor bypass pulley that lets the original drive belt stay in place while routing around an inoperable compressor. It is a practical repair option for vehicles where the air conditioning compressor has failed but the belt drive still needs to operate reliably.
- Aluminum bracket with a plastic pulley for a direct-fit bypass setup
- Serpentine belt application
- Mounting bracket included for installation
- Outside diameter: 96 mm
- Installation instructions included
- Designed for compressor types MSC130CVSG2 and MSC105CVSG5
Application Details
This Dorman 34226 bypass pulley is compatible with 2002-2005 Buick Rendezvous, 2001-2005 Pontiac Aztek, 2001-2005 Pontiac Montana, wo/Rear Air Conditioning, and 2001-2002 Oldsmobile Silhouette, wo/Rear Air Conditioning. It is a fitment-specific solution for vehicles that need to keep the serpentine belt system operating after A/C compressor failure. This part cross-references UAC CO20744T for the same application.
What It Helps Address
- Seized or inoperable A/C compressor causing belt drive issues
- Need to retain the original serpentine belt routing
- Noise or drag from a failed compressor pulley assembly
- Loss of accessory drive function tied to compressor failure
- Need for a bypass-style repair on Buick Rendezvous, Pontiac Aztek, Pontiac Montana, or Oldsmobile Silhouette applications
Installation Notes and Tips
Verify compressor type before installation, since this part is listed for MSC130CVSG2 and MSC105CVSG5 applications. Confirm belt routing, bracket alignment, and pulley clearance before final assembly. Mounting hardware is not included, so reuse or source the required fasteners as needed. Follow the included instructions and inspect the serpentine belt for wear before returning the vehicle to service.
Quality Assurance
Dorman supplies this bypass pulley as a cost-effective repair solution for maintaining belt operation when the original A/C compressor is no longer functional. The package includes the pulley and bracket, along with installation instructions for a more straightforward service process.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2005 | Buick | Rendezvous | 3.4L | V6 | N/A | — |
| 2005 | Pontiac | Aztek | 3.4L | V6 | N/A | — |
| 2005 | Pontiac | Montana | 3.4L | V6 | N/A | wo/Rear Air Conditioning |
| 2004 | Buick | Rendezvous | 3.4L | V6 | N/A | — |
| 2004 | Pontiac | Aztek | 3.4L | V6 | N/A | — |
| 2004 | Pontiac | Montana | — | — | N/A | wo/Rear Air Conditioning |
| 2003 | Buick | Rendezvous | — | — | N/A | — |
| 2003 | Pontiac | Aztek | 3.4L | V6 | N/A | — |
| 2003 | Pontiac | Montana | — | — | N/A | wo/Rear Air Conditioning |
| 2002 | Buick | Rendezvous | — | — | N/A | — |
| 2002 | Oldsmobile | Silhouette | — | — | N/A | wo/Rear Air Conditioning |
| 2002 | Pontiac | Aztek | 3.4L | V6 | N/A | — |
| 2002 | Pontiac | Montana | — | — | N/A | wo/Rear Air Conditioning |
| 2001 | Oldsmobile | Silhouette | — | — | N/A | wo/Rear Air Conditioning |
| 2001 | Pontiac | Aztek | 3.4L | V6 | N/A | — |
| 2001 | Pontiac | Montana | — | — | N/A | wo/Rear Air Conditioning |
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