National 471341N Manual Transmission Output Shaft Seal

Overview of National 471341N Manual Transmission Output Shaft Seal

The National 471341N manual transmission output shaft seal is engineered to provide reliable sealing performance for select Chevrolet and Pontiac vehicles. Designed with durable polyacrylate material, this oil seal helps maintain transmission integrity by preventing fluid leaks and contamination.

• Constructed from high-quality polyacrylate for durability and resistance
• Inside diameter of 2.250 inches (57.150 mm) to fit specific shaft sizes
• Outside diameter measures 3.001 inches (76.230 mm) for precise housing bore fitment
• Seal thickness of 0.437 inches (11.100 mm) ensures proper sealing depth
• Redicoat feature enhances corrosion resistance and longevity
• Part of the National 470000 series, known for consistent quality in sealing systems

Detailed Product Description and Specifications

This National manual transmission output shaft seal (part number 471341N) is designed to fit a range of Chevrolet and Pontiac models, including the Chevrolet C10 Suburban, C20 Suburban, K10 Suburban, K20 Suburban, and the Pontiac Bonneville, Catalina, Grand Prix, Laurentian, LeMans, Parisienne, and Tempest. The seal features a 2.250 inch (57.150 mm) inside diameter, matching the shaft size for a secure fit, and an outside diameter of 3.001 inches (76.230 mm) to fit the housing bore precisely at 2.996 inches (76.100 mm). With a thickness of 0.437 inches (11.100 mm), it provides an effective barrier against oil leaks in manual transmission output shafts.

The polyacrylate material offers resistance to heat and wear, making it suitable for the demanding environment of manual transmissions. Additionally, the Redicoat coating helps protect the seal from corrosion, extending its service life. This seal is part of National's 470000 series, which focuses on gaskets and sealing systems designed for reliable performance in automotive transmissions.

Common Applications and Problem Solving

• Prevents oil leaks from manual transmission output shafts in Chevrolet and Pontiac vehicles
• Helps maintain proper lubrication and prevents contamination of transmission components
• Reduces risk of transmission damage caused by fluid loss
• Addresses wear-related seal failures in older or high-mileage vehicles
• Ensures consistent transmission performance by maintaining fluid integrity

Installation Notes and Tips

When installing the National 471341N output shaft seal, ensure the transmission output shaft and housing bore are clean and free of debris. Proper alignment during installation is critical to avoid seal damage. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the original part to maintain effective sealing.

Quality Assurance and Warranty

National manufactures the 471341N output shaft seal to meet industry standards for durability and performance. The polyacrylate material and Redicoat corrosion protection contribute to the seal’s reliability in demanding transmission environments. While specific warranty details are not provided, National products typically adhere to quality control processes to ensure consistent fit and function for compatible Chevrolet and Pontiac models.