HomeHVAC > A/C Clutch and CompressorDorman 34209 A/C Compressor Bypass Pulley
Part #: 34209

Dorman 34209 A/C Compressor Bypass Pulley

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46 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, Chevrolet, Pontiac, and Buick, Eldorado, DeVille, Seville, Camaro, Firebird, Roadmaster, Fleetwood, Caprice, Impala, and Allante
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Reliable A/C Compressor Bypass Pulley for Select GM Vehicles

The Dorman 34209 A/C Compressor Bypass Pulley is designed to restore proper belt function in your Buick, Cadillac, Chevrolet, or Pontiac vehicle. Engineered with durable materials and precise fitment, this pulley supports the FS10 compressor type commonly found in models like the Camaro, Eldorado, and Seville.

  • Constructed with an aluminum bracket and a plastic pulley for strength and durability
  • Outside diameter measures 127 mm for accurate fitment
  • Includes mounting bracket and installation hardware for straightforward replacement
  • Compatible with serpentine belt systems
  • Installation instructions included for ease of use
  • Package contains one pulley, bracket, and necessary hardware

Durable Materials and Precise Fitment

The Dorman 34209 features a robust aluminum bracket paired with a plastic pulley designed to withstand the demands of the serpentine belt system. Its 127 mm outside diameter ensures compatibility with FS10 compressor types, making it suitable for a range of GM vehicles including the Buick Allante, Cadillac DeVille, Chevrolet Caprice, and Pontiac Firebird. The included mounting bracket and hardware simplify installation, while the detailed instructions help ensure a proper fit and function.

Compatible Vehicles and Applications

This A/C compressor bypass pulley is compatible with the following makes and models:

  • Buick Allante
  • Cadillac DeVille, Eldorado, Fleetwood, Seville
  • Chevrolet Camaro, Caprice, Impala, Roadmaster
  • Pontiac Firebird

It is specifically designed for vehicles equipped with the FS10 compressor type and serpentine belt systems, providing a reliable replacement part for maintaining your HVAC system's performance.

Common Issues Addressed by This Pulley

  • Worn or damaged A/C compressor bypass pulley causing belt slippage
  • Noise or squealing from a failing pulley assembly
  • Improper belt alignment affecting accessory drive performance
  • Failure of the original pulley bracket leading to compressor issues
  • Replacement of broken or seized pulley components

Installation Notes and Tips

  • Ensure the serpentine belt is properly routed before installation
  • Use the included mounting bracket and hardware for secure attachment
  • Follow the provided installation instructions carefully to avoid misalignment
  • Inspect the belt and other pulleys for wear during replacement
  • Torque mounting bolts to manufacturer specifications

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 34209 A/C Compressor Bypass Pulley comes with installation instructions and is backed by Dorman's quality assurance processes. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number34209
Belt TypeSerpentine
Compressor TypeFs10
Installation Instructions IncludedYes
MaterialAluminum Bracket
MaterialPlastic Pulley
Mounting Bracket IncludedYes
Mounting Hardware IncludedNo
Number of Pulleys Included1
Outside Diameter127
Package ContentsPulley; Bracket; and Installation Hardware

This part fits 46 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002CadillacEldoradoN/A
2001CadillacEldoradoN/A
2000CadillacEldoradoN/A
1999CadillacDeVilleN/A
1999CadillacEldoradoN/A
1999CadillacSevilleN/A
1998CadillacDeVilleN/A
1998CadillacEldoradoN/A
1998CadillacSevilleN/A
1997CadillacDeVilleN/A
1997CadillacEldoradoN/A
1997CadillacSevilleN/A
1997ChevroletCamaro5.7LV8N/A
1997PontiacFirebird5.7LV8N/A
1996BuickRoadmasterN/A
1996CadillacDeVilleN/A
1996CadillacEldoradoN/A
1996CadillacFleetwoodN/A
1996CadillacSevilleN/A
1996ChevroletCamaro5.7LV8N/A
1996ChevroletCapriceN/A
1996ChevroletImpalaN/A
1996PontiacFirebird5.7LV8N/A
1995BuickRoadmasterN/A
1995CadillacDeVilleN/A
1995CadillacEldoradoN/A
1995CadillacFleetwoodN/A
1995CadillacSevilleN/A
1995ChevroletCamaro5.7LV8N/A
1995ChevroletCapriceN/A
1995ChevroletImpalaN/A
1995PontiacFirebird5.7LV8N/A
1994BuickRoadmasterN/A
1994CadillacDeVilleN/A
1994CadillacEldoradoN/A
1994CadillacFleetwoodN/A
1994CadillacSevilleN/A
1994ChevroletCamaro5.7LV8N/A
1994ChevroletCapriceN/A
1994ChevroletImpalaN/A
1994PontiacFirebird5.7LV8N/A
1993CadillacAllanteN/A
1993CadillacEldorado4.6LV8N/A
1993CadillacSeville4.6LV8N/A
1993ChevroletCamaro5.7LV8N/A
1993PontiacFirebird5.7LV8N/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.