National 222535 Manual Transmission Input Shaft Seal - Front

Overview of National 222535 Manual Transmission Input Shaft Seal

The National 222535 manual transmission input shaft seal is engineered to provide reliable sealing performance for a variety of vehicle makes and models. Designed with durable nitrile material, this oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.

• Inside diameter: 0.984 inch (25.000 mm)
• Outside diameter: 1.505 inch (38.230 mm)
• Thickness/width: 0.276 inch (7.000 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Compatible with multiple vehicle makes including Audi, Chevrolet, Geo, GMC, Nissan, Pontiac, Suzuki, Toyota, and Volkswagen

Technical Details and Specifications

The National 222535 input shaft seal features a precise inside diameter of 0.984 inch (25 mm) and an outside diameter of 1.505 inch (38.23 mm), ensuring a secure fit within the transmission housing bore measuring approximately 1.496 inch (38 mm). The 7 mm thickness provides adequate sealing surface area to prevent oil leakage. Constructed from nitrile, the seal offers resistance to petroleum-based fluids and maintains flexibility under varying temperature conditions. This part is part of National's 220000 series, known for consistent quality in transmission sealing applications.

Compatible Vehicles and Applications

This manual transmission input shaft seal is compatible with a range of vehicles, including but not limited to:

• Audi models 80 and 90
• Chevrolet and Geo models 210 and 4000
• Nissan models such as the Corolla and Quantum
• Toyota models including Corona and Starlet
• Volkswagen models 80 and 90
• Suzuki models Samurai, Sidekick, Sunrunner, Tracker, Vitara, and X-90

Common Issues Addressed by National 222535 Seal

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

Installation Notes and Tips

When installing the National 222535 input 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 seal’s orientation matches the original part to maintain proper sealing function. It is recommended to inspect the input shaft for wear or damage before installation to ensure optimal sealing performance.

Quality Assurance and Warranty

National manufactures the 222535 input shaft seal to meet industry standards for durability and performance. The nitrile material is selected for its resistance to oil and temperature variations commonly encountered in manual transmissions. While specific warranty details are not provided, National products typically adhere to strict quality control processes to ensure reliability in automotive applications.