National 223540 Manual Transmission Output Shaft Seal - Rear or Right

Overview of National 223540 Manual Transmission Output Shaft Seal

The National 223540 manual transmission output shaft seal is engineered to provide reliable sealing performance for a variety of vehicle makes and models, including Chevrolet, Ford, Toyota, and Volvo. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transmission integrity by preventing fluid leaks.

• Inside diameter options: 1.378 inch (35 mm)
• Outside diameter: 2.183 inch (55.45 mm)
• Thickness: 0.315 inch (9 mm)
• Sealing material: Polyacrylate for enhanced durability
• Bi-directional lip design for effective sealing under varying conditions
• Compatible housing bore: 2.165 inch (55 mm)
• Overall width with side lip: 0.610 inch (15.5 mm)

Technical Details and Material Specifications

This National 223540 output shaft seal is constructed from polyacrylate, a material known for its resistance to heat, oil, and wear, making it suitable for manual transmission applications. The seal features a bi-directional lip design that ensures effective sealing against fluid leakage in both rotational directions. With an inside diameter of 1.378 inches (35 mm) and an outside diameter of 2.183 inches (55.45 mm), it fits precisely into the housing bore of 2.165 inches (55 mm). The thickness of 0.315 inches (9 mm) and an overall width including the side lip of 0.610 inches (15.5 mm) provide a secure fit and reliable sealing performance.

Compatible Vehicles and Applications

This manual transmission output shaft seal is compatible with a wide range of vehicles, including Chevrolet models like the Metro and Tracker, Ford Five Hundred, Toyota Camry, Corolla, and RAV4, as well as Volvo S40, S60, and XC60. It also fits models from Geo, GMC, Isuzu, Land Rover, Lexus, Mercury, Pontiac, Scion, Suzuki, and others. The part number 223540 ensures you receive the correct seal for your specific transmission needs.

Common Issues Addressed by the National 223540 Seal

• Prevents manual transmission fluid leaks around the output shaft
• Reduces contamination ingress that can damage transmission components
• Maintains proper lubrication within the transmission system
• Helps avoid premature wear of transmission bearings and gears
• Ensures consistent transmission performance and longevity

Installation Notes and Tips

When installing the National 223540 output 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. Verify the seal orientation matches the bi-directional lip design for optimal performance. Lubricate the seal lip lightly with transmission fluid before installation to reduce initial wear. Always consult the vehicle’s service manual for torque specifications and installation procedures specific to your make and model.

Quality Assurance and Warranty Information

National transmission seals are manufactured to meet industry standards for durability and performance. The 223540 output shaft seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability for manual transmission applications.