National 710943 Transfer Case Output Shaft Seal - Rear

Reliable Transfer Case Output Shaft Seal for Ram 2500 and 3500

The National 710943 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 prevents fluid leaks.

• Compatible with Ram 2500 and 3500 transfer cases
• Inside diameter: 2.323 inches (59.000 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
• Housing bore size: 3.327 inches (84.500 mm)
• Overall width with side lip: 1.969 inches (50.000 mm)

Detailed Product Description

The National 710943 transfer case output shaft seal is part of the 710900 series, designed specifically for transfer case applications requiring reliable oil sealing. Its bi-directional lip design ensures effective sealing against contaminants and fluid leakage in both rotational directions. The fluoro-elastomer sealing material offers resistance to heat, oil, and wear, making it suitable for the demanding environment inside the transfer case of Ram 2500 and 3500 trucks. With precise inside and outside diameters and thickness, this seal fits securely within the housing bore, maintaining proper sealing pressure and durability over time.

Common Applications and Problem Solving

• Prevents transfer case fluid leaks that can cause damage to internal components
• Reduces contamination ingress that leads to premature wear
• Maintains proper lubrication within the transfer case output shaft area
• Addresses seal failure issues due to aging or wear
• Helps avoid costly transfer case repairs by ensuring a tight seal

Installation Notes and Tips

When installing the National 710943 transfer case output shaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without distortion. Verify the seal’s orientation matches the bi-directional lip design for optimal sealing performance. Lubricate the seal lip lightly with transfer case fluid before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures on Ram 2500 and 3500 models.

Quality Assurance and Warranty

National transfer case output shaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precision engineering provide consistent sealing reliability. The 710943 part number is backed by National’s quality control processes to ensure fitment and function. Please refer to National’s warranty policy for coverage details on this transfer case output shaft seal.