National 710937 Engine Crankshaft Seal - Front

National 710937 Engine Crankshaft Seal Overview

The National 710937 engine crankshaft seal is designed to provide reliable sealing performance for various Chrysler, Dodge, Jeep, Ram, and Volkswagen vehicles. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 1.772 inches (45.000 mm)
• Outside diameter: 2.646 inches (67.200 mm)
• Thickness/width: 0.315 inches (8.000 mm)
• Material: Durable fluoro-elastomer for enhanced resistance to heat and chemicals
• Compatible with multiple models including Jeep Wrangler, Dodge Charger, Chrysler 300, and Ram 1500

Detailed Product Description

The National 710937 crankshaft seal is part of the 710900 series, crafted from fluoro-elastomer material known for its excellent resistance to high temperatures, oils, and automotive fluids. With an inside diameter of 1.772 inches (45 mm) and an outside diameter of 2.646 inches (67.2 mm), this seal fits precisely within the housing bore of 2.638 inches (67 mm). Its 0.315 inch (8 mm) thickness ensures a secure fit that minimizes oil leakage and protects the engine’s internal components.

This oil seal is engineered to maintain a tight seal around the crankshaft, preventing contaminants from entering the engine and preserving lubrication. The fluoro-elastomer construction offers durability and longevity, making it suitable for demanding driving conditions and extended service intervals.

Compatible Vehicles and Applications

This National 710937 crankshaft seal is compatible with a range of vehicles, including:

• Chrysler 200, 300, Pacifica, Town & Country
• Dodge Avenger, Challenger, Charger, Durango
• Jeep Cherokee, Grand Cherokee, Wrangler, Wrangler JK, Journey
• Ram 1500, 1500 Classic, ProMaster 1500, 2500, 3500
• Volkswagen Routan, C/V

Common Issues Addressed by This Seal

• Prevents oil leaks around the crankshaft area
• Reduces engine contamination from dirt and debris
• Maintains proper engine lubrication and pressure
• Minimizes wear on crankshaft bearings
• Helps avoid costly engine repairs due to seal failure

Installation Notes and Tips

Ensure the crankshaft and housing bore are clean and free of debris before installation. Use appropriate tools to press the seal evenly into place without damaging the fluoro-elastomer material. Verify the seal’s orientation matches the engine manufacturer’s specifications to maintain optimal sealing performance.

Quality Assurance and Warranty

Manufactured by National, a trusted name in engine sealing systems, the 710937 crankshaft seal meets industry standards for durability and performance. The fluoro-elastomer material provides resistance to heat and chemical degradation, supporting long service life. Warranty details should be confirmed with the product documentation or supplier.