National 482163N Manual Transmission Input Shaft Seal

Overview of National 482163N Manual Transmission Input Shaft Seal

The National 482163N manual transmission input shaft seal is engineered to provide reliable sealing performance for select Dodge, Ford, and Mercury vehicles. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain transmission integrity and prevent fluid leaks.

• Constructed from durable polyacrylate material for effective sealing
• Inside diameter of 1.375 inches (34.930 mm) to fit input shafts accurately
• Outside diameter of 1.987 inches (50.470 mm) designed to match housing bore
• Thickness of 0.312 inches (7.920 mm) for proper fit and sealing pressure
• Redicoat finish for enhanced corrosion resistance
• Zero duplication part ensuring unique fit and quality
• Part of the National 480000 series for transmission sealing systems

Detailed Product Description and Specifications

The National 482163N is a manual transmission input shaft seal specifically designed to fit a range of Dodge, Ford, and Mercury models including Bronco, Capri, D100 through D350 trucks, F-100 through F-350 trucks, Mustang, Ramcharger, and W-series trucks (W100 to W350). This oil seal features a 1.375 inch (34.930 mm) inside diameter to accommodate the input shaft, while the outside diameter measures 1.987 inches (50.470 mm) to fit securely within the housing bore of 1.983 inches (50.370 mm). The thickness of 0.312 inches (7.920 mm) ensures a tight seal to prevent transmission fluid leaks and contamination.

Manufactured from polyacrylate, the seal offers resistance to heat and wear, which is critical for maintaining transmission performance under demanding conditions. The Redicoat treatment adds an extra layer of corrosion protection, extending the service life of the seal. As a zero duplication part, the 482163N guarantees a precise fit and reliable sealing for the specified vehicle applications.

Common Applications and Problem Solving

• Prevents transmission fluid leaks from the input shaft area
• Reduces contamination ingress that can cause premature transmission wear
• Maintains proper lubrication within manual transmission systems
• Helps avoid costly transmission repairs due to seal failure
• Ensures consistent transmission performance in Dodge, Ford, and Mercury trucks and SUVs

Installation Notes and Tips

• Verify compatibility with your vehicle’s make, model, and transmission type before installation
• Clean the housing bore thoroughly to remove debris and old sealant
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Inspect the input shaft for wear or damage before installing the new seal
• Apply a light coating of transmission fluid to the seal lip to ease installation and initial operation

Quality Assurance and Warranty Information

National’s 482163N input shaft seal is manufactured to meet strict quality standards for durability and fitment. The product is part of the 480000 series, known for consistent performance in transmission sealing applications. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product’s reliability.