National 710810 Automatic Transmission Extension Housing Seal

Overview of National 710810 Transmission Extension Housing Seal

The National 710810 automatic transmission extension housing seal is engineered for precise fitment on Chevrolet Corvette models. Designed with durable fluoro-elastomer material and a bi-directional lip design, this oil seal ensures reliable sealing performance to protect your transmission system.

• Inside diameter: 1.299 inches (33.000 mm)
• Outside diameter: 2.094 inches (53.200 mm)
• Thickness/width: 0.285 inches (7.250 mm)
• Bi-directional helix lip design for enhanced sealing
• Material: Fluoro-elastomer for chemical and heat resistance
• Compatible with Chevrolet Corvette automatic transmissions
• Part number: 710810, Series 710800

Detailed Product Description

The National 710810 transmission extension housing seal is a critical component designed to maintain the integrity of the automatic transmission system in Chevrolet Corvette vehicles. Constructed from fluoro-elastomer, this seal offers excellent resistance to heat, oil, and other automotive fluids, ensuring long-lasting durability. The bi-directional helix lip design provides effective sealing against fluid leaks in both rotational directions, which is essential for the extension housing area of the transmission.

With precise dimensions including a 1.299-inch (33 mm) inside diameter and a 2.094-inch (53.2 mm) outside diameter, this seal fits securely within the housing bore of 2.087 inches (53 mm). The 0.285-inch (7.25 mm) thickness contributes to a tight seal that prevents contamination and fluid loss, helping maintain transmission performance and reliability.

Applications and Common Issues Addressed

• Prevents automatic transmission fluid leaks in Chevrolet Corvette models
• Protects transmission extension housing from dirt and debris ingress
• Reduces risk of premature transmission wear due to fluid contamination
• Helps maintain proper hydraulic pressure within the transmission system
• Addresses seal degradation caused by heat and chemical exposure

Installation Notes and Tips

• Ensure the transmission extension housing bore is clean and free of debris before installation
• Lubricate the seal lip with transmission fluid to ease installation and prevent damage
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Verify correct orientation of the bi-directional lip design during installation
• Inspect the shaft and housing surfaces for wear or damage prior to seal replacement

Quality Assurance and Warranty

National transmission seals are manufactured to meet strict industry standards for durability and performance. The 710810 seal is part of the 710800 series, known for consistent quality and reliable sealing properties. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in their products.