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Dorman 34275 A/C Compressor Bypass Pulley
| Brand | Dorman 34275 |
|---|---|
| Belt Type | Serpentine |
| Compressor Type | 10PA |
| 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 | 5 |
| Package Contents | Bracket and Pulleys |
| Fits | Jeep · 13 vehicles |
Bypass pulley solution. Lets the original equipment drive belt stay in use when the compressor is inoperable.
Aluminum bracket. With a plastic pulley for a practical, lightweight design.
Complete mounting kit. Includes the bracket, pulley, and hardware for installation.
Cross-references Four Seasons 77379, Four Seasons 78379 and Four Seasons TSR2472 for the same application. See all 24.
Dorman 34275 A/C Compressor Bypass Pulley
Dorman 34275 is an A/C compressor bypass pulley for vehicles with an inoperable compressor. It lets the original equipment serpentine belt stay in place while routing the belt around the failed A/C compressor, helping restore accessory drive operation on select Jeep applications.
- Aluminum bracket with plastic pulley construction
- Outside diameter: 5 in.
- Designed for serpentine belt systems
- Includes mounting bracket and pulley assembly
- Mounting hardware and installation instructions included
- For 10PA compressor applications
How It Works
This bypass pulley replaces the compressor’s belt-routing function when the A/C compressor is seized, noisy, or no longer in service. It is a practical repair solution for Jeep Wrangler and Jeep Grand Cherokee models where the belt path must remain intact without replacing the full compressor assembly. Part number 34275 is also referenced in aftermarket catalogs under related cross numbers for the same application.
Vehicle Fitment
- Fits 2000-2006 Jeep Wrangler, N/A
- Fits 1999-2004 Jeep Grand Cherokee, N/A
Common Problems It Can Help Solve
- Serpentine belt routing issues caused by a failed A/C compressor
- Belt noise related to a locked or damaged compressor pulley
- Loss of accessory drive function when the compressor is no longer usable
- Need to keep the OE belt path in place without compressor replacement
- Repair planning for Jeep Wrangler and Jeep Grand Cherokee A/C compressor bypass applications
Installation Notes
Verify compressor type 10PA and confirm belt routing before installation. Use the included bracket and hardware to secure the assembly, and follow the provided instructions to ensure proper alignment with the serpentine belt. Confirm fitment for your specific Jeep Wrangler or Jeep Grand Cherokee year before ordering. Part number 34275 should be matched to the vehicle’s existing accessory drive layout.
Quality Assurance
Dorman manufactures this bypass pulley as a cost-effective service part for restoring belt operation when the original A/C compressor is not functioning. The aluminum bracket and plastic pulley are built for direct replacement use in the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2005 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2004 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
| 2004 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2003 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
| 2003 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2002 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
| 2002 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2001 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
| 2001 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 2000 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
| 2000 | Jeep | Wrangler | 4.0L | L6 | N/A | — |
| 1999 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | — |
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