Dorman 34158 A/C Compressor Bypass Pulley

Reliable A/C Compressor Bypass Pulley for Chevrolet and GMC Vehicles

The Dorman 34158 A/C Compressor Bypass Pulley is designed to restore proper belt function in select Chevrolet and GMC trucks and SUVs. Engineered with durable materials, this pulley assembly ensures smooth operation of the serpentine belt system on vehicles equipped with FS10 compressors.

• Includes aluminum mounting bracket and plastic pulley for durability and performance
• Outside diameter of 90 mm for precise fit and function
• Compatible with serpentine belt systems
• Mounting bracket and installation hardware included for straightforward installation
• Installation instructions provided to assist with proper setup
• Designed specifically for FS10 compressor type applications
• Package contains one pulley, bracket, and necessary hardware

Durable Construction and Precise Fitment

This Dorman A/C Compressor Bypass Pulley (part number 34158) features a robust aluminum bracket paired with a plastic pulley to balance strength and weight. The 90 mm outside diameter pulley is engineered to maintain proper belt tension and alignment, reducing wear on the serpentine belt system. Compatible with Chevrolet and GMC models such as C1500, C2500, C3500, K1500, K2500, K3500, Tahoe, Yukon, and P30/P3500 series, this pulley is tailored for vehicles equipped with FS10 compressors. The included mounting bracket and hardware simplify installation, while the detailed instructions help ensure correct assembly.

Compatible Chevrolet and GMC Models

• Chevrolet C1500, C1500 Suburban, C2500, C2500 Suburban, C3500
• GMC K1500, K1500 Suburban, K2500, K2500 Suburban, K3500
• Chevrolet Tahoe and Yukon
• GMC P30 and P3500

Common Issues Addressed by This Pulley

• Serpentine belt slippage or misalignment due to worn or damaged pulley
• Noise or squealing from failing A/C compressor bypass pulley
• Loss of proper belt tension affecting accessory drive performance
• Failure of the original pulley bracket causing belt system issues
• Replacement of damaged or corroded pulley components on FS10 compressor setups

Installation Notes and Tips

Installation of the Dorman 34158 pulley includes the mounting bracket and hardware, making it a direct replacement for compatible vehicles. Follow the included instructions carefully to ensure proper belt alignment and tension. It is recommended to inspect the serpentine belt and related components during installation to prevent future issues. Use appropriate tools to avoid damage to the pulley or bracket during mounting.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 34158 A/C Compressor Bypass Pulley undergoes quality checks to ensure durability and reliable performance. Installation instructions are included to support proper setup. Please refer to Dorman's warranty policy for specific coverage details.