National 224450 Automatic Transmission Torque Converter Seal

Overview of National 224450 Automatic Transmission Torque Converter Seal

The National 224450 automatic transmission torque converter seal is engineered to provide reliable sealing performance for select Infiniti, Mercury, and Nissan vehicles. Designed with precision, this polyacrylate oil seal ensures effective containment of transmission fluid, helping maintain optimal transmission operation.

• Material: Durable polyacrylate for enhanced wear resistance
• Inside Diameter: 1.732 inches (44.000 mm)
• Outside Diameter: 2.332 inches (59.230 mm)
• Thickness: 0.268 inches (6.800 mm)
• Helix Type: Clockwise-spiral lip design for improved sealing
• Compatible with housing bore size of 2.323 inches (59.000 mm)
• Part Number: 224450, Series 220000

Detailed Product Description

The National 224450 torque converter seal is specifically designed to fit automatic transmissions in vehicles such as the Infiniti Altima, I30, I35, Maxima, Quest, Sentra, Villager, and Nissan X-Trail, as well as select Mercury models. Constructed from polyacrylate, this seal offers resistance to heat and transmission fluids, ensuring long-lasting performance. The clockwise-spiral lip design enhances sealing efficiency by maintaining consistent contact with the shaft, reducing the risk of fluid leaks. With precise dimensions including a 1.732-inch inside diameter and a 2.332-inch outside diameter, this seal fits securely within the transmission housing bore of 2.323 inches.

Common Applications and Issues Addressed

• Prevents automatic transmission fluid leaks around the torque converter shaft
• Reduces contamination ingress that can cause premature transmission wear
• Maintains proper fluid pressure for smooth transmission operation
• Helps avoid costly transmission repairs due to seal failure
• Supports consistent torque converter performance in Infiniti, Mercury, and Nissan models

Installation Notes and Tips

• Ensure the transmission housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing
• Check for proper fitment with the specified inside and outside diameters
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty

National transmission seals are manufactured to meet industry standards for durability and performance. The 224450 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.