National 474288 Manual Transmission Output Shaft Seal - Left or Right

Overview of National 474288 Manual Transmission Output Shaft Seal

The National 474288 manual transmission output shaft seal is engineered to provide reliable sealing performance for select Ford, Mini, Plymouth, and Volkswagen models. Constructed from durable nitrile material, this oil seal is designed to maintain transmission fluid integrity and prevent leaks in your vehicle's manual transmission system.

• Material: High-quality nitrile for resistance to oil and wear
• Inside Diameter: 1.417 inches (36.000 mm)
• Outside Diameter: 2.295 inches (58.300 mm)
• Thickness/Width: 0.315 inches (8.000 mm)
• Compatible with housing bore size approximately 2.283 inches (58.000 mm)

Detailed Product Description

The National 474288 output shaft seal is part of the 470000 series, designed specifically for manual transmissions requiring precise sealing solutions. Its nitrile composition offers excellent resistance to petroleum-based fluids and high temperatures commonly found in transmission environments. The seal’s dimensions, including a 1.417-inch inside diameter and 2.295-inch outside diameter, ensure a secure fit around the output shaft and within the housing bore, minimizing the risk of fluid leakage. This seal is suitable for use in various manual transmission applications, including Ford Focus, Mini Cooper, Plymouth Turismo, and Volkswagen Golf and Jetta models.

Applications and Common Issues Addressed

• Prevents transmission fluid leaks from the output shaft area
• Reduces contamination ingress into the transmission system
• Helps maintain proper lubrication and transmission performance
• Addresses wear-related seal degradation in manual transmissions
• Mitigates issues related to shaft seal failure such as noise and shifting problems

Installation Notes and Tips

When installing the National 474288 output shaft seal, ensure the transmission housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the shaft diameter matches the 1.417-inch specification for optimal sealing. Avoid using excessive force during installation to prevent seal distortion or damage.

Quality Assurance and Warranty

National manufactures the 474288 output shaft seal to meet industry standards for durability and performance. The nitrile material and precise dimensions contribute to consistent sealing reliability. While specific warranty details are not provided, National products typically adhere to quality control processes to ensure fit and function in compatible Ford, Mini, Plymouth, and Volkswagen manual transmissions.