National 710741 Differential Pinion Seal - Front Outer

Overview of National 710741 Differential Pinion Seal

The National 710741 differential pinion seal is engineered for reliable sealing performance in Jeep Wrangler and Wrangler JK driveline systems. Designed with precision dimensions and durable materials, this oil seal helps maintain optimal differential function by preventing fluid leaks.

• Compatible with Jeep Wrangler and Wrangler JK models
• Inside diameter: 1.844 inches (46.838 mm)
• Outside diameter: 3.068 inches (77.927 mm)
• Thickness: 0.535 inches (13.589 mm)
• Flanged outside diameter: 3.330 inches (84.582 mm)
• Counter-clockwise spiral lip design for enhanced sealing
• Constructed from fluoro-elastomer for chemical and heat resistance

Technical Specifications and Design Features

The National 710741 differential pinion seal features a counter-clockwise spiral lip design that improves sealing efficiency by directing lubricant inward and contaminants outward. Its fluoro-elastomer material offers resistance to heat, oil, and wear, ensuring durability under demanding conditions. The seal fits a shaft diameter of 1.844 inches (46.838 mm) and a housing bore of approximately 3.063 inches (77.800 mm), making it suitable for specific Jeep Wrangler driveline applications. The flanged outside diameter of 3.330 inches (84.582 mm) facilitates secure installation and proper seating within the differential housing.

Applications and Problem Solving

• Prevents differential oil leaks that can cause driveline damage
• Protects internal components from dirt and debris intrusion
• Maintains proper lubrication for differential pinion gears
• Reduces risk of premature wear due to fluid contamination
• Helps avoid costly repairs related to seal failure in Jeep Wrangler and Wrangler JK models

Installation Notes and Tips

Ensure the differential 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 distortion. Verify the seal lip orientation matches the counter-clockwise spiral design for optimal sealing. Lubricate the seal lip lightly with differential oil prior to installation to reduce initial wear. Check for proper fitment with the Jeep Wrangler or Wrangler JK model specifications to avoid leaks.

Quality Assurance and Warranty

National manufactures the 710741 differential pinion seal to meet industry standards for durability and performance. The fluoro-elastomer material and precise dimensional tolerances contribute to long service life. While specific warranty details are not provided, National products typically adhere to quality control processes ensuring reliable operation in compatible Jeep Wrangler and Wrangler JK vehicles.