National 710245 Differential Pinion Seal - Rear Outer

Overview of National 710245 Differential Pinion Seal

The National 710245 differential pinion seal is engineered for reliable sealing performance in Nissan driveline systems. Designed specifically for Nissan D21, Frontier, Pathfinder, and Xterra models, this oil seal helps maintain proper lubrication and prevents fluid leaks in the differential assembly.

• Compatible with Nissan D21, Frontier, Pathfinder, and Xterra
• Part number 710245 for precise identification
• Constructed from durable polyacrylate material
• Clockwise-spiral lip design for effective sealing
• Inside diameter: 42.0 mm (1.654 inches)
• Outside diameter: 76.1 mm (2.996 inches)
• Thickness: 14.0 mm (0.551 inches)
• Overall width with side lip: 20.0 mm (0.787 inches)

Technical Specifications and Design Features

The National 710245 differential pinion seal features a polyacrylate construction that offers resistance to heat and wear, suitable for the demanding environment of automotive differentials. Its clockwise-spiral lip design enhances sealing efficiency by directing fluid back into the housing, reducing the risk of leaks. The seal fits a shaft diameter of 42 mm (1.654 inches) and a housing bore of approximately 76 mm (2.992 inches), ensuring a secure fit within the differential assembly.

Applications and Problem Solving

This differential pinion seal is used to maintain the integrity of the differential by preventing oil leaks and contamination. It is compatible with Nissan models including the D21, Frontier, Pathfinder, and Xterra, making it a suitable replacement part for these vehicles.

• Prevents differential oil leaks that can cause drivetrain damage
• Protects against dirt and debris entering the differential housing
• Maintains proper lubrication for differential gears and bearings
• Reduces risk of premature wear due to fluid loss
• Helps avoid costly repairs related to seal failure

Installation Notes and Tips

When installing the National 710245 differential pinion seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the clockwise-spiral lip design to optimize sealing performance. Lubricate the seal lip lightly with differential oil before installation to reduce initial wear.

Quality Assurance and Warranty

National manufactures the 710245 differential pinion seal to meet industry standards for durability and performance. The polyacrylate material and precise dimensions contribute to consistent sealing reliability. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product.