Dorman 300-405 Power Steering Pump Pulley

Overview of Dorman Power Steering Pump Pulley 300-405

The Dorman 300-405 power steering pump pulley is designed specifically for Toyota 4Runner and Pickup models. Constructed from durable steel with a silver finish, this pulley ensures reliable performance in your vehicle's power steering system.

• Material: Steel for strength and durability
• Color: Silver finish for corrosion resistance
• Groove Quantity: Single groove compatible with V-belt systems
• Outside Diameter: 5.728 inches for precise fitment
• Mounting Hole Quantity: One hole for secure attachment
• Belt Type: Designed for V-belt drive systems
• Standard replacement grade for dependable operation
• Package Contents: Includes the pulley only, mounting hardware not included

Detailed Product Description

The Dorman 300-405 power steering pump pulley is engineered to meet the specifications required by Toyota 4Runner and Pickup vehicles. Its steel construction provides the necessary strength to withstand the stresses of power steering operation, while the silver finish helps resist rust and corrosion. Featuring a single groove, this pulley is compatible with V-belt drive systems commonly found in these Toyota models. The 5.728-inch outside diameter and single mounting hole ensure a precise and secure fit, maintaining proper belt alignment and tension for optimal steering performance.

Common Applications and Problem Resolution

This power steering pump pulley is used to transfer rotational force from the engine to the power steering pump, enabling smooth steering assistance. It addresses several common issues including:

• Worn or damaged pulley causing belt slippage
• Corroded pulley leading to premature failure
• Misaligned pulley resulting in uneven belt wear
• Noise or vibration from a faulty pulley
• Replacement of original equipment pulley during power steering pump service

Installation Notes and Tips

Installation of the Dorman 300-405 pulley requires removal of the old pulley and proper alignment on the power steering pump shaft. Note that mounting hardware and installation instructions are not included, so having the appropriate tools and reference to a service manual for Toyota 4Runner or Pickup is recommended. Ensure the pulley bore size of 18 mm matches the pump shaft diameter for a secure fit. Proper belt tension should be verified after installation to prevent slippage or premature wear.

Quality Assurance and Warranty

Dorman power steering pump pulleys are manufactured to meet standard replacement quality requirements. The 300-405 part is tested for durability and fitment compatibility with Toyota 4Runner and Pickup models. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship, supporting reliable service life in automotive applications.