National 710942 Transfer Case Output Shaft Seal - Rear

Reliable Transfer Case Output Shaft Seal for Ram 2500 and 3500

The National 710942 transfer case output shaft seal is engineered to provide durable sealing performance for Ram 2500 and 3500 models. Designed with precision dimensions and high-quality materials, this oil seal helps maintain transfer case integrity and prevent fluid leaks.

• Compatible with Ram 2500 and 3500 transfer cases
• Inside diameter: 2.166 inches (55.000 mm)
• Outside diameter: 3.335 inches (84.700 mm)
• Thickness: 0.472 inches (12.000 mm)
• Bi-directional lip design for effective sealing
• Constructed from durable fluoro-elastomer material
• Overall width with side lip: 0.866 inches (22.000 mm)

Detailed Product Description and Specifications

The National 710942 transfer case output shaft seal features a bi-directional lip design that ensures reliable sealing against contaminants and fluid leakage in both rotational directions. Its fluoro-elastomer sealing material offers resistance to heat, oil, and wear, making it suitable for demanding automotive environments. The seal’s precise dimensions, including a 2.166-inch (55 mm) inside diameter and a 3.335-inch (84.7 mm) outside diameter, match the housing bore size of 3.327 inches (84.5 mm) to provide a secure fit. With a thickness of 0.472 inches (12 mm) and an overall width including the side lip of 0.866 inches (22 mm), this seal is designed to maintain optimal contact and sealing pressure on the transfer case output shaft.

Common Applications and Problem Solving

• Prevents transfer case fluid leaks in Ram 2500 and 3500 vehicles
• Protects transfer case components from dirt and debris contamination
• Reduces risk of premature transfer case wear due to fluid loss
• Maintains proper lubrication within the transfer case output shaft area
• Helps avoid costly transfer case repairs related to seal failure

Installation Notes and Tips

Ensure the transfer case output shaft and housing bore are clean and free of debris before installing the National 710942 seal. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal’s orientation matches the bi-directional lip design for optimal performance. Avoid using excessive force during installation to prevent distortion or damage to the fluoro-elastomer material.

Quality Assurance and Warranty

National transfer case output shaft seals are manufactured to meet strict quality standards for durability and fitment. The 710942 part number is part of the 710900 series, known for consistent performance in demanding automotive applications. While specific warranty details are not provided, National products typically adhere to industry standards for material and workmanship reliability.