National 710593 Differential Pinion Seal - Front Outer

National 710593 Differential Pinion Seal Overview

The National 710593 differential pinion seal is engineered for reliable sealing performance in driveline applications. Designed specifically for Dodge Liberty and Jeep Nitro models, this oil seal helps maintain proper lubrication and prevents leaks in the differential assembly.

• Inside diameter: 1.803 inches (45.8 mm)
• Outside diameter: 3.071 inches (78 mm)
• Flanged outside diameter: 3.406 inches (86.5 mm)
• Thickness/width: 0.551 inches (14 mm)
• Material: durable fluoro-elastomer for enhanced resistance to heat and chemicals
• Housing bore diameter: 3.067 inches (77.9 mm)
• Compatible with Dodge Liberty and Jeep Nitro differentials

Technical Details and Specifications

The National 710593 differential pinion seal is constructed from fluoro-elastomer, a material known for its excellent resistance to high temperatures, oils, and other automotive fluids. The seal features a 1.803-inch inside diameter to fit the pinion shaft precisely, while the 3.071-inch outside diameter and 3.406-inch flanged outside diameter ensure a secure fit within the differential housing bore of approximately 3.067 inches. With a thickness of 0.551 inches, this seal provides a robust barrier against fluid leaks, helping to maintain the integrity of the differential system.

Compatible Vehicles and Applications

This differential pinion seal is compatible with select Dodge and Jeep models, specifically the Dodge Liberty and Jeep Nitro. It is designed to replace worn or damaged seals in the differential assembly, ensuring proper lubrication and preventing contamination. The part number 710593 corresponds to the National series 710500, which is tailored for driveline and axle sealing needs.

Common Issues Addressed by the National 710593 Seal

• Prevents differential oil leaks that can lead to drivetrain damage
• Reduces contamination from dirt and debris entering the differential
• Maintains proper lubrication of the pinion shaft
• Helps avoid premature wear of differential components
• Ensures consistent differential performance under various driving conditions

Installation Notes and Tips

When installing the National 710593 differential pinion seal, ensure the differential housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the fluoro-elastomer material. Verify the seal’s orientation matches the original part to maintain proper sealing function. It is recommended to inspect the pinion shaft for wear or damage before installation to ensure optimal seal performance.

Quality Assurance and Warranty

National manufactures the 710593 differential pinion seal to meet industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat and chemical exposure typical in automotive differentials. While specific warranty details may vary, National products generally come with a limited warranty against defects in material and workmanship, providing confidence in the product’s reliability.