Dorman 300-871 Alternator Pulley

Reliable Alternator Pulley for Volkswagen Jetta and Passat

The Dorman 300-871 alternator pulley is designed to provide consistent performance for Volkswagen Jetta and Passat models. Featuring a serpentine type design with a durable black finish, this pulley ensures proper belt alignment and efficient power transmission.

Key Features of the Dorman 300-871 Alternator Pulley

• Finish: Black for corrosion resistance and durability
• Attachment Type: Bolt-on for secure installation
• Outside Diameter: 2.17 inches, matching OEM specifications
• Type: Serpentine pulley compatible with serpentine belt systems
• Contact Surface Material: Steel for strength and wear resistance
• Bore Size: 0.67 inches for precise fitment
• Flanged End: No, designed for smooth belt operation
• Installation Hardware: Not included, requires reuse or separate purchase
• Package Contents: Includes one alternator pulley

Detailed Description of the Dorman 300-871 Alternator Pulley

This alternator pulley is engineered to meet the exact specifications required for Volkswagen Jetta and Passat vehicles. The bolt-on attachment type allows for straightforward replacement without modifications. Its serpentine design supports modern belt systems, ensuring efficient power delivery to the alternator. The steel contact surface enhances durability under continuous operation, while the black finish provides additional protection against environmental factors. With an outside diameter of 2.17 inches and a bore size of 0.67 inches, this pulley fits precisely, maintaining proper belt tension and alignment.

Common Applications and Issues Addressed

• Replacement of worn or damaged alternator pulleys on Volkswagen Jetta and Passat
• Resolving belt slippage or misalignment problems
• Eliminating unusual noises caused by pulley wear
• Restoring proper alternator function and charging system performance
• Preventing premature belt wear due to pulley defects

Installation Notes and Tips

Installation of the Dorman 300-871 alternator pulley requires removal of the existing pulley using appropriate tools. Since installation hardware is not included, retain original bolts or acquire compatible fasteners. Ensure the serpentine belt is properly aligned and tensioned after installation to avoid operational issues. It is recommended to inspect the belt and related components during replacement to maintain overall system reliability.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for Volkswagen vehicles. While specific warranty details for part number 300-871 should be confirmed at the point of purchase, Dorman typically offers limited warranties covering defects in material and workmanship.