National 710511 Manual Transmission Input Shaft Seal - Outer

Overview of National 710511 Manual Transmission Input Shaft Seal

The National 710511 manual transmission input shaft seal is engineered to provide reliable sealing performance for select Honda, Isuzu, and Mazda vehicles. Designed with precision, this polyacrylate oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.

• Material: Durable polyacrylate for effective sealing
• Inside Diameter: 1.063 inches (27.000 mm)
• Outside Diameter: 1.701 inches (43.200 mm)
• Thickness: 0.276 inches (7.000 mm)
• Helix Type: Clockwise-spiral lip design for enhanced sealing
• Housing Bore: 1.693 inches (43.000 mm)
• Compatible with multiple Honda, Isuzu, and Mazda models

Detailed Product Description and Specifications

The National 710511 input shaft seal is part of the 710500 series, designed specifically for manual transmissions requiring a 32-type oil seal. Constructed from polyacrylate, this seal offers resistance to heat and wear, ensuring long-lasting performance in demanding transmission environments. The seal features a clockwise-spiral lip design that improves sealing efficiency by directing fluid back into the transmission, reducing the risk of leaks. With precise dimensions including a 1.063-inch inside diameter and a 1.701-inch outside diameter, it fits securely within the housing bore of 1.693 inches, providing a tight seal around the input shaft.

Compatible Vehicles and Applications

This manual transmission input shaft seal is compatible with a range of Honda, Isuzu, and Mazda models, including but not limited to:

• Honda: 323, 626, Miata, MPV, MX-3, MX-5 Miata, MX-6, Passport, Pickup, Protege, RX-7
• Isuzu: Amigo, Rodeo, Rodeo Sport, Trooper
• Mazda: B2000, B2200, B2300, B2600

Common Issues Addressed by the National 710511 Seal

• Prevents manual transmission fluid leaks around the input shaft
• Reduces contamination from dirt and debris entering the transmission
• Minimizes wear on transmission components by maintaining proper lubrication
• Helps avoid costly transmission repairs due to seal failure
• Maintains transmission performance and reliability

Installation Notes and Tips

• Ensure the transmission input shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without damage
• Verify the seal’s orientation matches the clockwise-spiral lip design for optimal sealing
• Check for proper fitment with the 1.063-inch shaft diameter and 1.701-inch outside diameter
• Consult vehicle service manuals for torque specifications and installation procedures

Quality Assurance and Warranty Information

National manufactures the 710511 input shaft seal to meet industry standards for durability and performance. The polyacrylate material and precise engineering ensure consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.