OE Quality
60-Day Returns

Dorman 34151 A/C Compressor Bypass Pulley
Reliable A/C Compressor Bypass Pulley for Ford and Mercury Vehicles
The Dorman 34151 A/C Compressor Bypass Pulley is designed specifically for Ford Taurus and Mercury Sable models. Engineered to maintain proper belt tension and ensure smooth operation of your vehicle's serpentine belt system, this pulley is a critical component for your HVAC system's performance.
- Durable aluminum bracket for secure mounting
- Plastic pulley with a 127mm outside diameter
- Includes mounting bracket and hardware for straightforward installation
- Compatible with FS10 compressor type
- Installation instructions included for ease of use
- Designed for serpentine belt systems
- Single pulley included in the package
Product Details and Specifications
The Dorman 34151 features a robust aluminum bracket that provides a stable and corrosion-resistant mounting base. The plastic pulley, measuring 127mm in outside diameter, is engineered to work seamlessly with serpentine belts, reducing wear and ensuring consistent belt alignment. This part is compatible with FS10 compressor types commonly found in Ford Taurus and Mercury Sable models. The package includes the pulley, mounting bracket, and all necessary hardware, along with clear installation instructions to facilitate a smooth replacement process.
Compatible Vehicles and Common Applications
This A/C compressor bypass pulley is compatible with the following vehicles:
- Ford Taurus (specific model years with FS10 compressor)
- Mercury Sable (specific model years with FS10 compressor)
It is designed to address issues such as:
- Worn or damaged A/C compressor pulleys causing belt slippage
- Noise or squealing from the serpentine belt area
- Improper belt tension leading to accessory malfunction
- Failure of the bypass pulley affecting HVAC system performance
Installation Notes and Tips
The Dorman 34151 comes with all necessary mounting hardware and a detailed installation guide. For best results, ensure the serpentine belt is properly aligned and tensioned during installation. It is recommended to inspect the belt and other pulleys for wear and replace them if necessary to maintain optimal system performance.
Quality Assurance and Warranty
Dorman parts are manufactured to meet or exceed OEM standards. The 34151 A/C Compressor Bypass Pulley is backed by Dorman's quality assurance processes to ensure durability and reliable fitment. Installation instructions are included to support proper setup. Please refer to Dorman's warranty policy for specific coverage details.
| Brand | Dorman |
|---|---|
| Part Number | 34151 |
| Belt Type | Serpentine |
| Compressor Type | Fs10 |
| 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 | 127 |
| Package Contents | Pulley; Bracket; and Installation Hardware |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1995 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1994 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1994 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1993 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1993 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1992 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1992 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1991 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1991 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1990 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1990 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1989 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1989 | Mercury | Sable | 3.8L | V6 | N/A | |
| 1988 | Ford | Taurus | 3.8L | V6 | N/A | |
| 1988 | Mercury | Sable | 3.8L | V6 | 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.