HomeHVAC > A/C Clutch and CompressorDorman 34194 A/C Compressor Bypass Pulley
Part #: 34194

Dorman 34194 A/C Compressor Bypass Pulley

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⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, and Oldsmobile, Skyhawk, Beretta, Cavalier, Corsica, and Firenza
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Reliable A/C Compressor Bypass Pulley for Buick, Chevrolet, and Oldsmobile

The Dorman 34194 A/C Compressor Bypass Pulley is designed to restore proper function to the serpentine belt system in select Buick, Chevrolet, and Oldsmobile vehicles. Engineered with a durable aluminum bracket and a plastic pulley, this part ensures consistent performance for models like the Cavalier, Corsica, Firenza, and Skyhawk.

  • Constructed with an aluminum mounting bracket for strength and corrosion resistance
  • Durable plastic pulley with a 127mm outside diameter
  • Compatible with serpentine belt systems
  • Includes mounting bracket and installation hardware
  • Installation instructions provided for ease of replacement
  • Designed for FS10 compressor type applications
  • Single pulley included in the package

Durable Design and Precise Fitment

The Dorman 34194 bypass pulley features a robust aluminum bracket that provides a secure mounting point, reducing the risk of bracket failure or misalignment. The plastic pulley is engineered to withstand the demands of the serpentine belt system while maintaining smooth operation. With an outside diameter of 127mm, this pulley matches OEM specifications to ensure proper belt tension and alignment. This part is specifically designed for FS10 compressor types and is compatible with various Buick, Chevrolet, and Oldsmobile models, including the Cavalier, Corsica, Firenza, and Skyhawk.

Common Applications and Problem Resolution

This A/C compressor bypass pulley is used to replace worn or damaged pulleys that can cause belt slippage, noise, or improper belt routing. It addresses issues such as:

  • Excessive belt noise or squealing
  • Worn or damaged pulley surfaces
  • Misalignment causing premature belt wear
  • Failure of the original mounting bracket
  • Loss of proper belt tension in serpentine systems

Installation Notes and Tips

The Dorman 34194 includes installation instructions and all necessary mounting hardware for a straightforward replacement process. It is important to verify compatibility with your vehicle’s make and model before installation. Ensure the serpentine belt is properly routed and tensioned after replacing the pulley to avoid premature wear or belt failure.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 34194 A/C Compressor Bypass Pulley comes with a limited warranty to protect against defects in material and workmanship, offering peace of mind for professional and DIY repairs.

BrandDorman
Part Number34194
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 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1989BuickSkyhawkN/A
1989ChevroletCavalier2.0LL4N/A
1989ChevroletCorsica2.0LL4N/A
1988BuickSkyhawkN/A
1988ChevroletCavalier2.0LL4N/A
1988ChevroletCorsica2.0LL4N/A
1988OldsmobileFirenza2.0LL4N/A
1987BuickSkyhawkN/A
1987ChevroletCavalier2.0LL4N/A
1987ChevroletCorsica2.0LL4N/A
1987OldsmobileFirenza2.0LL4N/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.