National 710734 Differential Pinion Seal - Rear Outer

Reliable Differential Pinion Seal for Lexus and Toyota Vehicles

The National 710734 differential pinion seal is engineered to provide a precise fit and durable sealing solution for select Lexus and Toyota models. Designed with a clockwise-spiral lip, this oil seal ensures effective protection against leaks and contamination in driveline applications.

• Inside diameter: 2.047 inches (52.000 mm)
• Outside diameter: 3.433 inches (87.200 mm)
• Thickness: 0.406 inches (10.300 mm)
• Overall width with side lip: 0.670 inches (17.000 mm)
• Material: Polyacrylate for enhanced durability and resistance
• Helix type: Clockwise-spiral lip design for optimal sealing
• Compatible housing bore: 3.425 inches (87.000 mm)

Detailed Product Description

The National 710734 differential pinion seal is crafted from polyacrylate material, known for its resistance to heat, oil, and wear. Its precise dimensions, including a 2.047-inch inside diameter and 3.433-inch outside diameter, make it suitable for maintaining a secure seal around the pinion shaft. The clockwise-spiral lip design helps to prevent oil leakage by directing fluid back into the differential housing, reducing the risk of contamination and premature wear. This seal is part of the 710700 series, which focuses on reliable sealing solutions for driveline and axle components.

Compatible Vehicles and Applications

This differential pinion seal is compatible with the following Lexus and Toyota models:

• Lexus GX470
• Toyota Land Cruiser
• Toyota Sequoia
• Toyota Tundra

It is designed specifically for use in the differential assembly to maintain proper lubrication and prevent oil leaks around the pinion shaft.

Common Issues Addressed by This Seal

• Prevents oil leaks from the differential pinion shaft
• Protects against dirt and debris entering the differential housing
• Reduces wear on differential components by maintaining lubrication
• Helps avoid costly repairs due to seal failure
• Maintains proper differential performance and longevity

Installation Notes and Tips

Ensure the housing bore and shaft are clean and free of debris before installation. Use appropriate tools to press the seal evenly into the housing bore without damaging the lip. Verify the seal orientation matches the clockwise-spiral lip design to ensure proper sealing function. Check for any signs of wear or damage on the shaft that could compromise the seal’s effectiveness.

Quality Assurance and Warranty

National manufactures the 710734 differential pinion seal to meet industry standards for durability and performance. The polyacrylate material and precise engineering contribute to a reliable sealing solution. While specific warranty details are not provided, National products typically adhere to quality control processes to ensure consistent product integrity.