National 710841 Engine Crankshaft Seal - Rear

Overview of National 710841 Engine Crankshaft Seal

The National 710841 engine crankshaft seal is designed for reliable sealing performance in various Chrysler, Dodge, Jeep, and Ram vehicles. Engineered with a PTFE material and a counter-clockwise spiral lip design, this oil seal ensures effective protection against oil leaks and contamination.

• Inside diameter: 3.937 inches (100.000 mm)
• Outside diameter: 4.753 inches (120.726 mm)
• Thickness/width: 0.810 inches (20.574 mm)
• Material: PTFE for enhanced durability and chemical resistance
• Helix type: Counter-clockwise spiral lip design for improved sealing
• Compatible housing bore: 4.740 inches (120.396 mm)
• Part number: 710841, series 710800

Detailed Product Description

This National 710841 engine crankshaft seal is specifically designed to maintain a secure seal around the crankshaft, preventing oil leakage and protecting engine components from dirt and debris. The PTFE construction offers excellent wear resistance and chemical stability, making it suitable for demanding engine environments. The counter-clockwise spiral lip design enhances sealing efficiency by maintaining consistent contact pressure on the shaft, reducing the risk of oil seepage over time.

With precise dimensions including a 3.937-inch inside diameter and a 4.753-inch outside diameter, this oil seal fits housing bores measuring approximately 4.740 inches, ensuring a proper fit for the intended applications. It is part of National's 710800 series, known for quality sealing solutions in automotive engines.

Compatible Vehicles and Applications

This engine crankshaft seal is compatible with a range of Chrysler, Dodge, Jeep, and Ram models, including but not limited to:

• Chrysler 300 and Aspen
• Dodge Challenger, Charger, Durango, and Magnum
• Jeep Commander and Grand Cherokee
• Ram 1500, 1500 Classic, 2500, and 3500 series trucks

Common Issues Addressed by the National 710841 Seal

• Prevents oil leaks around the crankshaft area
• Protects engine components from dirt and contaminants
• Reduces wear caused by oil seepage and friction
• Maintains engine oil pressure and efficiency
• Helps avoid costly engine repairs due to seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Verify the correct orientation of the seal lip with the counter-clockwise spiral facing the oil side
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Check shaft surface for wear or damage that could affect seal performance
• Follow vehicle manufacturer torque specifications when reassembling components

Quality Assurance and Warranty

National engine crankshaft seals are manufactured to meet industry standards for durability and performance. The 710841 seal is constructed from high-quality PTFE material and designed to provide consistent sealing under typical engine operating conditions. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects. It is recommended to consult the product documentation or supplier for exact warranty terms.