National 710608 Engine Crankshaft Seal - Front

National 710608 Engine Crankshaft Seal Overview

The National 710608 engine crankshaft seal is designed to provide reliable sealing performance for a variety of vehicles including Acura, Chrysler, Dodge, Honda, Jaguar, Jeep, Maybach, Mercedes-Benz, and Porsche models. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 1.693 inches (43.000 mm)
• Outside diameter: 2.292 inches (58.220 mm)
• Thickness: 0.276 inches (7.000 mm)
• Sealing material: Polyacrylate for durability and resistance
• Clockwise-spiral lip design for effective sealing
• Compatible with housing bore size of 2.283 inches (58.000 mm)

Technical Details and Material Specifications

This National 710608 crankshaft seal is constructed from polyacrylate, a material known for its excellent resistance to heat, oil, and wear. The seal features a clockwise-spiral lip design that enhances sealing efficiency by maintaining consistent contact with the crankshaft. With an inside diameter of 1.693 inches and an outside diameter of 2.292 inches, it fits precisely into housings with a bore diameter of approximately 2.283 inches. The 0.276-inch thickness ensures a secure fit and long-lasting performance under demanding engine conditions.

Compatible Vehicles and Applications

This engine crankshaft seal is compatible with a wide range of vehicles, including popular models such as the Acura Accord, Chrysler 300 series, Dodge Challenger and Charger, Honda Civic and CR-V, Jaguar XJR and XKR, Jeep Wrangler and Grand Cherokee, Maybach S600 and S650, Mercedes-Benz C-Class, E-Class, S-Class, AMG variants, and Porsche 928. The part number 710608 is specifically designed to meet the sealing requirements of these vehicles, ensuring proper fit and function.

• Prevents oil leaks around the crankshaft
• Reduces engine contamination from external debris
• Maintains engine oil pressure and efficiency
• Helps avoid costly engine repairs due to seal failure
• Supports smooth engine operation and longevity

Installation Notes and Tips

When installing the National 710608 crankshaft 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 damaging the sealing lip. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing. Lubricate the seal lip lightly with clean engine oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty

National manufactures the 710608 crankshaft seal to meet strict industry standards for durability and performance. The polyacrylate material and precision design contribute to consistent sealing under various operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in product reliability.