National 471526 Power Steering Pump Shaft Seal

Overview of National Power Steering Pump Shaft Seal 471526

The National Power Steering Pump Shaft Seal 471526 is engineered to provide reliable sealing performance for power steering systems. Designed with precision, this oil seal helps maintain system integrity by preventing fluid leaks and contamination.

• Inside diameter: 0.500 inch (12.7 mm)
• Outside diameter: 1.128 inch (28.65 mm)
• Thickness/width: 0.250 inch (6.35 mm)
• Material: Durable nitrile compound
• Redicoat coating for enhanced wear resistance
• Housing bore size: 1.124 inch (28.55 mm)
• Series: 470000, Type 47
• Zero duplication part ensuring unique fitment

Detailed Product Description

This National power steering pump shaft seal (part number 471526) is manufactured from nitrile, a material known for its resistance to oil, heat, and wear. The seal features a 0.500 inch (12.7 mm) inside diameter and a 1.128 inch (28.65 mm) outside diameter, with a thickness of 0.250 inch (6.35 mm), making it suitable for precise sealing applications in power steering pumps. The Redicoat treatment enhances the seal’s durability by reducing friction and extending service life. The 471526 seal is designed to fit housing bores measuring approximately 1.124 inch (28.55 mm), ensuring a secure and leak-free installation.

Common Applications and Problem Solving

This power steering pump shaft seal is typically used in various vehicle makes and models requiring a 0.500 inch shaft seal, including many domestic and import cars with compatible power steering systems. It addresses several common issues:

• Prevents power steering fluid leaks around the pump shaft
• Protects internal components from dirt and contaminants
• Reduces wear on the power steering pump shaft
• Maintains hydraulic pressure for consistent steering performance
• Helps avoid costly pump repairs due to seal failure

Installation Notes and Tips

When installing the National 471526 power steering pump shaft seal, ensure the housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip or nitrile material. Lubricate the seal lip with clean power steering fluid before installation to reduce initial wear. Verify shaft dimensions match the 0.500 inch specification for proper fitment. Follow vehicle-specific service manual instructions for torque and assembly procedures.

Quality Assurance and Warranty

National manufactures the 471526 power steering pump shaft seal to meet industry standards for durability and performance. The nitrile material and Redicoat finish contribute to long service life under typical operating conditions. This part is a zero duplication item, ensuring unique fitment and traceability. While specific warranty terms may vary, National parts generally come with a limited warranty against defects in material and workmanship.