National 8160S Manual Transmission Output Shaft Seal

Overview of National 8160S Manual Transmission Output Shaft Seal

The National 8160S manual transmission output shaft seal is engineered to provide reliable sealing performance for a range of Chrysler, Dodge, Jeep, and Plymouth vehicles. Designed with durable nitrile material, this oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.

• Inside diameter: 1.562 inches (39.670 mm)
• Outside diameter: 2.457 inches (62.410 mm)
• Thickness/width: 0.500 inches (12.700 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Housing bore size: 2.441 inches (62.000 mm)
• Part number: 8160S, Series 8000

Detailed Product Description and Specifications

The National 8160S output shaft seal is part of the 8000 series, known for its consistent sealing capabilities in manual transmissions. Constructed from nitrile, a synthetic rubber material, this seal offers excellent resistance to petroleum-based fluids and mechanical wear. The precise dimensions, including a 1.562-inch inside diameter and a 2.457-inch outside diameter, ensure a proper fit on compatible shafts and housings. With a thickness of 0.500 inches, the seal maintains a secure barrier to prevent oil leakage from the transmission output shaft.

Compatible Vehicles and Applications

This manual transmission output shaft seal is compatible with various Chrysler, Dodge, Jeep, and Plymouth models, including but not limited to the Chrysler 300, Dodge Challenger, Charger, Aspen, and Ramcharger, as well as Jeep Wagoneer and Plymouth Duster models. It is designed to fit manual transmissions requiring a 1.562-inch shaft diameter and a housing bore near 2.441 inches.

Common Issues Addressed by the National 8160S Seal

• Prevents oil leaks from the manual transmission output shaft
• Reduces contamination ingress that can damage transmission components
• Maintains proper lubrication within the transmission system
• Helps avoid premature wear of transmission bearings and gears
• Ensures consistent transmission performance and longevity

Installation Notes and Tips

• Verify shaft and housing dimensions before installation to ensure compatibility
• Clean the shaft and bore area thoroughly to remove debris and old sealant
• Use appropriate tools to press the seal evenly into the housing bore
• Avoid damaging the sealing lip during installation
• Check for proper alignment to prevent leaks and premature wear

Quality Assurance and Warranty Information

National manufactures the 8160S output shaft seal to meet industry standards for durability and performance. The nitrile material and precise engineering contribute to a reliable seal designed for extended service life. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in their products.