National 710627 Transfer Case Input Shaft Seal

Overview of National Transfer Case Input Shaft Seal 710627

The National 710627 transfer case input shaft seal is engineered to provide reliable sealing performance for select Chrysler, Dodge, Jeep, Mitsubishi, and Ram vehicles. Designed with durable fluoro-elastomer material, this oil seal helps maintain transfer case integrity by preventing fluid leaks and contamination.

• Inside diameter: 1.937 inches (49.2 mm)
• Outside diameter: 2.700 inches (68.58 mm)
• Thickness/width: 0.394 inches (10 mm)
• Housing bore diameter: 2.683 inches (68.16 mm)
• Sealing material: Fluoro-elastomer for enhanced chemical and temperature resistance
• Part number: 710627, Series 710600

Detailed Product Description

This National transfer case input shaft seal (part number 710627) is specifically designed to fit transfer cases on various models including the Chrysler Aspen, Dodge Dakota, Durango, Ram 1500/2500/3500, Jeep Cherokee, Grand Cherokee, Liberty, Wrangler, Wrangler JK, and Mitsubishi Raider. The seal’s fluoro-elastomer construction offers excellent resistance to heat, oil, and other automotive fluids, ensuring long-lasting performance under demanding conditions.

With an inside diameter of 1.937 inches and an outside diameter of 2.700 inches, this seal fits precisely within the housing bore of 2.683 inches, providing a secure and leak-free interface around the input shaft. The 0.394-inch thickness contributes to a robust seal profile that maintains integrity during shaft rotation and transfer case operation.

Common Applications and Problem Solving

• Prevents transfer case fluid leaks that can cause low lubrication and damage
• Protects internal components from dirt and contaminants entering the transfer case
• Reduces risk of premature wear on input shaft bearings and gears
• Helps maintain proper transfer case pressure and fluid levels
• Addresses common seal failure issues in Chrysler, Dodge, Jeep, Mitsubishi, and Ram transfer cases

Installation Notes and Tips

• Ensure the transfer case input shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Lubricate the sealing lip with transfer case fluid prior to installation to reduce initial wear
• Verify correct orientation of the seal to prevent leaks
• Inspect the input shaft for wear or damage that could compromise seal performance

Quality Assurance and Warranty

National transfer case input shaft seals are manufactured to meet OEM specifications for fit, form, and function. The fluoro-elastomer sealing material is selected for durability and resistance to automotive fluids and temperature extremes. Part number 710627 is part of the 710600 series, ensuring consistent quality and compatibility. While specific warranty terms may vary, National products typically come with a limited warranty against defects in material and workmanship.