National 710535 Automatic Transmission Oil Pump Seal - Front

Overview of National 710535 Automatic Transmission Oil Pump Seal

The National 710535 automatic transmission oil pump seal is engineered for reliable sealing performance in various Ford, Jaguar, Lincoln, Mazda, and Mercury vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal supports efficient transmission operation in models like the Ford Explorer, Mustang, and Jaguar S-Type.

• Inside diameter: 1.614 inches (41.000 mm)
• Outside diameter: 2.440 inches (61.980 mm)
• Thickness/width: 0.299 inches (7.590 mm)
• Sealing material: Polyacrylate for enhanced durability
• Clockwise-spiral lip design for effective sealing
• Compatible housing bore: 2.435 inches (61.850 mm)
• Part number: 710535, Series 710500

Detailed Product Description and Specifications

This National automatic transmission oil pump seal (part number 710535) is constructed from polyacrylate, a material known for its resistance to heat, wear, and transmission fluids. The seal features a clockwise-spiral lip design that ensures a tight fit around the shaft, preventing fluid leaks and maintaining transmission pressure. With an inside diameter of 1.614 inches and an outside diameter of 2.440 inches, it fits precisely into the housing bore of 2.435 inches, making it suitable for a range of automatic transmissions in Ford, Jaguar, Lincoln, Mazda, and Mercury vehicles.

The thickness of 0.299 inches provides a robust barrier against oil leakage while accommodating the dynamic movement of the transmission oil pump shaft. This seal is part of National's 710500 series, which focuses on reliable sealing systems for automatic transmissions.

Compatible Vehicles and Common Applications

This oil pump seal is compatible with multiple vehicle models, including:

• Ford Explorer, Explorer Sport, Explorer Sport Trac, Mustang, Ranger, Aerostar
• Jaguar S-Type
• Lincoln Aviator, LS, Mountaineer, Thunderbird
• Mazda B2300, B2500, B3000, B4000
• Mercury Mountaineer

Common Issues Addressed by the National 710535 Seal

• Prevents automatic transmission fluid leaks around the oil pump shaft
• Maintains transmission pressure for smooth shifting performance
• Reduces risk of contamination entering the transmission system
• Minimizes premature wear of transmission components due to fluid loss
• Helps avoid costly transmission repairs caused by seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Use proper tools to press the seal evenly into the housing bore to avoid damage
• Verify the seal’s orientation matches the clockwise-spiral lip design for optimal sealing
• Check shaft surface for wear or damage that could compromise seal performance
• Follow vehicle manufacturer torque specifications when reassembling transmission components

Quality Assurance and Warranty Information

National transmission seals are manufactured to meet industry standards for durability and performance. The 710535 oil pump 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.