National 380023A Wheel Seal - Rear Inner

Overview of National 380023A Wheel Seal

The National 380023A wheel seal is engineered for reliable driveline protection, designed to maintain optimal oil bath sealing in automotive applications. Constructed from durable PTFE material, this wheel seal offers precise dimensions to ensure a secure fit and long-lasting performance.

• Part Number: 380023A
• Material: PTFE for enhanced wear resistance
• Outside Diameter: 144.93 mm (5.703 inches)
• Housing Bore: 144.53 mm (5.690 inches)
• Shaft Diameter: 98.43 mm (3.875 inches)
• Width: 19.56 mm (0.770 inches)
• Installation Tool: RD309 compatible
• Type: 10 oil bath seal

Detailed Product Description

The National 380023A wheel seal is part of the 380000 series, designed specifically for driveline and axle applications requiring precise sealing solutions. Its PTFE construction provides excellent resistance to heat, chemicals, and wear, making it suitable for maintaining oil bath environments in wheel hubs. The seal’s outside diameter of 144.93 mm and housing bore of 144.53 mm ensure a tight fit within compatible axle housings, while the 98.43 mm shaft diameter accommodates a range of axle shafts. With a width of 19.56 mm, this seal balances durability and compact design, minimizing leakage and contamination risks.

Common Applications and Problem Solving

• Prevents oil leaks in wheel hubs and axle assemblies
• Protects driveline components from dirt and debris ingress
• Maintains lubrication integrity in oil bath environments
• Reduces premature wear of axle shafts and bearings
• Helps avoid costly driveline repairs due to seal failure

Installation Notes and Tips

For proper installation of the National 380023A wheel seal, use the RD309 installation tool to ensure even seating and avoid damage to the PTFE material. Verify that the housing bore and shaft dimensions match the seal specifications to prevent leaks. Clean the installation area thoroughly before fitting the seal to remove any contaminants. Avoid excessive force during installation to maintain the integrity of the seal lip and ensure optimal performance.

Quality Assurance and Warranty

National wheel seals are manufactured to meet stringent quality standards for durability and performance in automotive driveline applications. The 380023A part number undergoes rigorous testing to ensure dimensional accuracy and material resilience. While specific warranty details are not provided, National products typically adhere to industry standards for reliability and service life.