National 350609 Automatic Transmission Torque Converter Seal

Overview of National 350609 Automatic Transmission Torque Converter Seal

The National 350609 automatic transmission torque converter seal is engineered to provide reliable sealing performance for various Acura, Honda, and Isuzu models. Designed with precision, this polyacrylate oil seal ensures effective containment of transmission fluid, helping maintain optimal transmission operation.

• Constructed from durable polyacrylate material for enhanced wear resistance
• Counter-clockwise spiral lip design for improved sealing efficiency
• Inside diameter of 1.732 inches (44.000 mm) and outside diameter of 2.689 inches (68.300 mm)
• Thickness of 0.315 inches (8.000 mm) for a secure fit
• Compatible with housing bore size of 2.677 inches (68.000 mm)
• Part number 350609 ensures exact replacement fit

Detailed Product Description and Specifications

This National 350609 torque converter seal is part of the 350000 series, designed specifically for automatic transmissions requiring precise sealing solutions. The polyacrylate material offers resistance to heat and transmission fluids, extending the service life of the seal. Its counter-clockwise spiral lip design enhances the seal’s ability to prevent fluid leakage under varying operating conditions. With an inside diameter of 1.732 inches (44.000 mm) and an outside diameter of 2.689 inches (68.300 mm), this seal fits tightly within the housing bore of 2.677 inches (68.000 mm), ensuring a secure and leak-free installation. The 0.315 inch (8.000 mm) thickness provides the necessary width to maintain sealing integrity during torque converter rotation.

Compatible Vehicles and Applications

This automatic transmission torque converter seal is compatible with a range of Acura, Honda, and Isuzu vehicles, including but not limited to:

• Acura models: CL, ILX, Integra, Legend, MDX, RSX, TL, TSX
• Honda models: Accord, Civic, Civic del Sol, CR-V, CRX, CSX, EL, Element, Fit, Odyssey, Pilot, Prelude
• Isuzu model: Oasis

Using part number 350609 ensures proper fitment and reliable performance in these vehicles.

Common Issues Addressed by the National 350609 Seal

• Prevents automatic transmission fluid leaks around the torque converter
• Reduces risk of transmission overheating due to fluid loss
• Maintains proper hydraulic pressure within the transmission system
• Minimizes contamination ingress that can damage transmission components
• Helps avoid costly transmission repairs caused by seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft surfaces are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the counter-clockwise spiral lip design for optimal sealing
• Check for proper seating and alignment to prevent premature wear
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty Information

National manufactures the 350609 torque converter seal to meet industry standards for durability and performance. The polyacrylate material and precision design contribute to consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product’s reliability.