Dorman 300-450 Power Steering Pump Pulley

Reliable Power Steering Pump Pulley for Nissan Vehicles

The Dorman 300-450 power steering pump pulley is designed to provide consistent performance for Nissan D21, Frontier, Pickup, and Xterra models. Crafted from durable composite material, this pulley supports your vehicle's power steering system with precision and reliability.

• Constructed from composite material for strength and durability
• Black finish with a single groove for V-belt compatibility
• 5-inch outside diameter and 0.5921-inch pulley bore for accurate fit
• Includes one mounting hole; mounting hardware not included
• Standard replacement grade for dependable performance

Product Details and Specifications

The Dorman 300-450 power steering pump pulley features a single groove designed specifically for V-belt systems, ensuring proper belt alignment and tension. Its 5-inch outside diameter and precise 0.5921-inch bore diameter allow for a secure fit on the power steering pump shaft. The composite construction offers resistance to wear and corrosion, extending the service life of the pulley. This part is a standard replacement component, engineered to meet OEM specifications for Nissan D21, Frontier, Pickup, and Xterra models.

Compatible Nissan Models and Applications

This power steering pump pulley is compatible with the following Nissan vehicles:

• Nissan D21
• Nissan Frontier
• Nissan Pickup
• Nissan Xterra

Use the Dorman 300-450 pulley to maintain or restore proper power steering function in these models, ensuring smooth steering response and reliable belt operation.

Common Issues Addressed by This Pulley

• Worn or damaged pulley causing belt slippage
• Noise or vibration from a failing power steering pump pulley
• Misalignment of the power steering belt
• Corrosion or cracking of original pulley material
• Replacement of a missing or broken pulley

Installation Notes and Tips

Installation of the Dorman 300-450 power steering pump pulley requires removal of the old pulley and proper alignment on the power steering pump shaft. Note that mounting hardware is not included, so retain or source appropriate fasteners. No installation instructions are provided, so refer to vehicle-specific service manuals for torque specifications and removal procedures. Ensure the V-belt is correctly seated in the single groove to prevent premature wear.

Quality Assurance and Warranty

Dorman power steering pump pulleys are manufactured to meet or exceed OEM standards for fit and function. The 300-450 part is a standard replacement grade component, providing reliable service life when installed correctly. While specific warranty details are not provided, Dorman products typically come with limited warranties covering defects in material and workmanship.