Dorman 300-125 Power Steering Pump Pulley

Durable Power Steering Pump Pulley for Select GM Vehicles

The Dorman 300-125 power steering pump pulley is engineered to restore proper belt alignment and power steering function in various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Constructed from steel with a black finish, this pulley is designed for reliable performance and long service life.

• Material: Steel construction for strength and durability
• Color: Black finish for corrosion resistance
• Groove Quantity: 2 grooves compatible with V-belt systems
• Outside Diameter: 6.13 inches for precise fitment
• Mounting Hole Quantity: Single mounting hole for secure attachment
• Belt Type: Designed specifically for V-belt drive systems
• Item Grade: Standard replacement quality
• Package Contents: Includes the pulley only; mounting hardware not included

Product Details and Compatibility

The Dorman 300-125 power steering pump pulley is a direct replacement part designed to fit a range of GM vehicles including Buick Century, Regal, and LeSabre; Cadillac DeVille, Eldorado, and Seville; Chevrolet Caprice, Impala, Monte Carlo, and El Camino; Oldsmobile Cutlass series and Delta 88; as well as Pontiac Bonneville and Safari models. Its 6.13-inch outside diameter and dual grooves accommodate V-belt systems commonly found in these vehicles. The pulley bore measures 0.7472 inches, ensuring proper alignment and fit on the power steering pump shaft.

Common Applications and Problem Resolution

• Restores proper belt tension and alignment in power steering systems
• Replaces worn or damaged pulleys causing belt slippage or noise
• Eliminates steering assist issues related to pulley failure
• Prevents premature belt wear due to misaligned or damaged pulleys
• Addresses vibration or squealing noises from the power steering pump area

Installation Notes and Tips

Installation of the Dorman 300-125 pulley requires removal of the old pulley from the power steering pump shaft. Note that mounting hardware is not included, so retain or source appropriate fasteners. No installation instructions are provided, so professional installation or reference to vehicle-specific repair manuals is recommended. Ensure the pulley grooves align correctly with the V-belt to maintain proper belt tracking and tension.

Quality Assurance and Warranty

This power steering pump pulley is manufactured to meet standard replacement quality specifications. Dorman parts undergo quality checks to ensure fit, form, and function. While no specific warranty information is included, Dorman typically offers limited warranties on their replacement components. Verify warranty details with the product documentation or supplier.