Dorman 34198 A/C Compressor Bypass Pulley

Reliable A/C Compressor Bypass Pulley for GM Vehicles

The Dorman 34198 A/C Compressor Bypass Pulley is designed to provide a durable and efficient solution for your vehicle's HVAC system. Engineered with quality materials, this pulley is compatible with various Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models, ensuring proper fit and function.

• Constructed with an aluminum bracket and plastic pulley for strength and longevity
• Outside diameter measures 114 mm for precise fitment
• Includes mounting bracket and hardware for straightforward installation
• Compatible with serpentine belt systems
• Designed specifically for FS10 compressor types
• Installation instructions included for ease of use
• Package contains one pulley, bracket, and all necessary hardware

Durable Materials and Precise Fitment

The Dorman 34198 features a robust aluminum bracket paired with a plastic pulley, balancing durability and weight. The 114 mm outside diameter ensures compatibility with serpentine belt systems commonly found in select GM vehicles. This pulley is engineered for FS10 compressor types, making it suitable for a range of Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models such as the Buick Century, Chevrolet Lumina, GMC Sonoma, and Pontiac Grand Prix. The included mounting bracket and hardware simplify the replacement process, while the detailed installation instructions help ensure proper setup.

Compatible Vehicles and Applications

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

• Buick Century, Regal, and Skylark
• Chevrolet Celebrity, Corsica, Lumina, Lumina APV, S10, and Silhouette
• GMC Sonoma and S10
• Oldsmobile Cutlass Ciera and Cutlass Supreme
• Pontiac Grand Prix and Trans Sport

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 serpentine belt performance
• Failure of the mounting bracket leading to compressor instability
• Replacement of original FS10 compressor pulley components

Installation Notes and Tips

Installation of the Dorman 34198 pulley is straightforward with the included mounting hardware and instructions. Ensure the serpentine belt is properly routed and tensioned after installation. It is recommended to inspect the belt and related components for wear during replacement to maintain optimal HVAC system performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. The 34198 A/C Compressor Bypass Pulley comes with a limited warranty, providing confidence in its durability and fitment. Always verify compatibility with your specific vehicle model and compressor type before installation.