National 712692 Engine Crankshaft Seal - Front

Overview of National Engine Crankshaft Seal 712692

The National 712692 engine crankshaft seal is designed to provide reliable sealing performance for various Ford, Lincoln, and Mercury vehicles. Engineered with a fluoro-elastomer material and a clockwise-spiral lip design, this oil seal ensures effective protection against oil leaks and contaminants.

• Inside diameter: 1.875 inches (47.625 mm)
• Outside diameter: 2.565 inches (65.151 mm)
• Thickness/width: 0.528 inches (13.411 mm)
• Flanged outside diameter: 3.150 mm (80.010 inches)
• Helix type: Clockwise-spiral lip design for enhanced sealing
• Material: Durable fluoro-elastomer for heat and chemical resistance
• Housing bore diameter: 2.561 inches (65.049 mm)
• Series: 712000

Technical Details and Material Specifications

This National crankshaft seal (part number 712692) is constructed from fluoro-elastomer, a material known for its resistance to high temperatures, oils, and chemicals commonly found in engine environments. The seal features a clockwise-spiral lip design that helps maintain a tight seal around the crankshaft, reducing the risk of oil leakage. With precise dimensions including a 1.875-inch inside diameter and a 2.565-inch outside diameter, it fits securely within the housing bore of 2.561 inches, ensuring compatibility and durability.

Compatible Vehicles and Applications

This engine crankshaft seal is compatible with a range of Ford, Lincoln, and Mercury models, including the Ford F-150, Mustang, E-150 Econoline, and Lincoln Continental. It is suitable for use in models such as the Mercury Cougar, Ford Taurus, Thunderbird, and Windstar. The part number 712692 is specifically designed to meet the sealing requirements of these vehicles, providing a reliable replacement option for maintaining engine integrity.

Common Issues Addressed by the National 712692 Seal

• Prevents oil leaks around the crankshaft area
• Reduces contamination from dirt and debris entering the engine
• Maintains engine oil pressure by ensuring a proper seal
• Protects against premature wear of engine components
• Helps avoid costly engine repairs due to seal failure

Installation Notes and Tips

When installing the National 712692 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the lip or flange. Verify the seal orientation matches the clockwise-spiral lip design for optimal performance. Lubricate the seal lip lightly with engine oil before installation to reduce initial wear and facilitate a proper seal.

Quality Assurance and Warranty Information

National's 712000 series seals, including part number 712692, are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precision engineering provide consistent sealing under demanding engine conditions. While specific warranty details may vary, National products typically come with a limited warranty against defects in material and workmanship, ensuring confidence in the product's reliability.