National 710465 Engine Crankshaft Seal - Rear

Overview of National 710465 Engine Crankshaft Seal

The National 710465 engine crankshaft seal is designed to provide reliable sealing performance for select Chevrolet, Pontiac, and Toyota vehicles. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 2.992 inches (76.000 mm)
• Outside diameter: 3.713 inches (94.310 mm)
• Thickness: 0.335 inches (8.500 mm)
• Material: Durable fluoro-elastomer for heat and chemical resistance
• Helix type: Counter-clockwise spiral lip design for effective sealing
• Compatible with Chevrolet, Pontiac, and Toyota models including Corolla, Matrix, MR2 Spyder, Prizm, and Vibe

Detailed Product Description

The National 710465 crankshaft seal is part of the 710400 series, crafted to meet the demanding requirements of engine sealing systems. Its fluoro-elastomer construction offers enhanced resistance to heat, oil, and other automotive fluids, ensuring long-lasting durability. The seal features a counter-clockwise spiral lip design that improves sealing efficiency by directing contaminants away from the shaft. With an inside diameter of 2.992 inches (76 mm) and an outside diameter of 3.713 inches (94.31 mm), this seal fits precisely into housings with a bore size of approximately 3.701 inches (94 mm). The thickness of 0.335 inches (8.5 mm) provides a secure fit and reliable sealing surface.

Applications and Problem Solving

• Prevents oil leaks around the crankshaft in Chevrolet, Pontiac, and Toyota engines
• Reduces contamination ingress that can cause premature engine wear
• Maintains engine oil pressure by sealing the crankshaft housing
• Helps avoid costly engine repairs related to seal failure
• Compatible with models such as Toyota Corolla, Matrix, MR2 Spyder, Pontiac Prizm, and Chevrolet Vibe

Installation Notes and Tips

Ensure the crankshaft and housing bore are clean and free of debris before installation. Verify the seal orientation matches the counter-clockwise spiral lip design to optimize sealing performance. Use appropriate tools to press the seal evenly into the housing bore without damaging the lip or seal body. Avoid excessive force or misalignment during installation to prevent premature seal failure.

Quality Assurance and Warranty

Manufactured by National, a recognized brand in engine sealing systems, the 710465 crankshaft seal meets industry standards for durability and performance. The fluoro-elastomer material and precision design contribute to consistent sealing under normal operating conditions. Warranty details are subject to the manufacturer's terms and conditions.