HomeHVAC > A/C Clutch and CompressorDorman 34185 A/C Compressor Bypass Pulley
Part #: 34185

Dorman 34185 A/C Compressor Bypass Pulley

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41 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Ranger, F-150, F-250, F-350, and Bronco
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Reliable A/C Compressor Bypass Pulley for Ford Trucks

The Dorman 34185 A/C Compressor Bypass Pulley is designed to provide a durable and efficient solution for Ford Bronco, F-150, F-250, F-350, and Ranger models. Engineered with quality materials, this pulley ensures smooth serpentine belt operation and proper compressor function.

  • Constructed with an aluminum bracket and a plastic pulley for strength and durability
  • Outside diameter measures 142 mm for precise fitment
  • Includes mounting bracket and installation hardware for straightforward replacement
  • Compatible with FS10 compressor type used in select Ford models
  • Installation instructions included to assist with proper setup
  • Designed for serpentine belt systems common in Ford trucks and SUVs
  • Single pulley included in the package

Durable Materials and Precise Fitment

The Dorman 34185 bypass pulley features a robust aluminum bracket paired with a plastic pulley, balancing durability and weight. Its 142 mm outside diameter matches OEM specifications, ensuring proper belt alignment and tension. This part is specifically engineered for FS10 compressor types, commonly found in Ford Bronco, F-150, F-250, F-350, and Ranger vehicles. The included mounting bracket and hardware simplify installation, while the detailed instructions help technicians and DIYers complete the replacement efficiently.

Compatible Ford Models and Applications

This A/C compressor bypass pulley is compatible with the following Ford vehicles:

  • Ford Bronco
  • Ford F-150
  • Ford F-250
  • Ford F-350
  • Ford Ranger

It is designed to work with serpentine belt systems and FS10 compressor types, making it a suitable replacement part for maintaining proper A/C system operation in these models.

Common Issues Addressed by This Pulley

  • Worn or damaged A/C compressor bypass pulley causing belt slippage
  • Noise or squealing from a failing pulley or bracket
  • Misalignment of serpentine belt leading to premature wear
  • Failure of the compressor clutch engagement due to pulley issues
  • Replacement of corroded or broken mounting brackets

Installation Notes and Tips

Installation of the Dorman 34185 pulley includes the mounting bracket and hardware, but no additional tools are required beyond standard automotive hand tools. Follow the included instructions carefully to ensure proper belt tension and alignment. It is recommended to inspect the serpentine belt and related components during installation to prevent future issues.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. The 34185 A/C Compressor Bypass Pulley undergoes quality checks to ensure durability and fitment accuracy. Installation instructions are included to support proper replacement. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number34185
Belt TypeSerpentine
Compressor TypeFs10
Installation Instructions IncludedYes
MaterialAluminum Bracket
MaterialPlastic Pulley
Mounting Bracket IncludedYes
Mounting Hardware IncludedNo
Number of Pulleys Included1
Outside Diameter142
Package ContentsPulley; Bracket; and Installation Hardware

This part fits 41 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001FordRanger2.5LL4N/A
2000FordRanger2.5LL4N/A
1999FordRanger2.5LL4N/A
1998FordRanger2.5LL4N/A
1995FordF-1504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1995FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1995FordF-2504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1995FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1995FordF-3504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1994FordF-1504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1994FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1994FordF-2504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1994FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1994FordF-3504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1993FordF-1504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1993FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1993FordF-2504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1993FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1993FordF-3504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordBronco4.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordF-1504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordF-2504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1992FordF-3504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordBronco4.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordF-1504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordF-2504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1991FordF-3504.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1990FordBronco4.9LL6N/ACompatible with vehicles equipped with factory installed air conditioning.
1990FordF-150N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-2505.0LV8N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-2505.8LV8N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-2507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1990FordF-2507.5LV8N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-2504.9LL6N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-3507.5LV8N/ACompatible with vehicles equipped with factory installed air conditioning.
1990FordF-3507.5LV8N/AEar Mount; w/Dealer Installed Air Conditioning
1990FordF-3504.9LL6N/AEar Mount; w/Dealer Installed Air Conditioning

* 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.