National 223253 Manual Transmission Input Shaft Seal

Overview of National 223253 Manual Transmission Input Shaft Seal

The National 223253 manual transmission input shaft seal is engineered to provide reliable sealing performance for a range of vehicles including Chevrolet, Dodge, GMC, Hummer, Isuzu, Jeep, Pontiac, Saturn, and Toyota models. Designed with a polyacrylate material and a clockwise-spiral lip design, this seal helps maintain transmission integrity by preventing oil leaks and contamination.

• Material: Durable polyacrylate for effective sealing
• Inside Diameter: 1.260 inches (32.000 mm)
• Outside Diameter: 2.098 inches (53.280 mm)
• Thickness: 0.276 inches (7.000 mm)
• Helix Type: Clockwise-spiral lip design for enhanced sealing
• Housing Bore Compatibility: 2.087 inches (53.000 mm)
• Part Number: 223253

Technical Details and Specifications

This manual transmission input shaft seal from National is part of the 220000 series, designed specifically for sealing the input shaft in manual transmissions. The polyacrylate material offers resistance to heat and wear, ensuring durability under demanding operating conditions. The seal’s dimensions, including a 1.260-inch inside diameter and 2.098-inch outside diameter, make it compatible with a variety of transmission housings and shafts. The clockwise-spiral lip design improves oil retention and reduces the risk of leaks, which is critical for maintaining transmission performance and longevity.

Compatible Vehicles and Applications

This input shaft seal is compatible with multiple vehicle makes and models, including Chevrolet 4Runner, Dodge Dakota, GMC Canyon, Hummer H3, Isuzu i-280, Jeep Grand Cherokee, Pontiac Solstice, Saturn Sky, and Toyota Tacoma. It is suitable for manual transmissions requiring a 32 mm shaft seal, making it a practical replacement part for maintenance and repair tasks on these vehicles.

Common Issues Addressed by the National 223253 Seal

• Prevents oil leaks from the manual transmission input shaft
• Reduces contamination ingress that can damage transmission components
• Minimizes wear on the transmission shaft and housing
• Maintains proper lubrication within the transmission system
• Helps avoid costly transmission repairs due to seal failure

Installation Notes and Tips

When installing the National 223253 input shaft seal, ensure the transmission housing bore is clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the lip or housing. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing performance. It is recommended to inspect the shaft and surrounding components for wear before installation to ensure a proper fit and long service life.

Quality Assurance and Warranty

National manufactures this input shaft seal to meet industry standards for durability and performance. The polyacrylate material and precision dimensions contribute to consistent sealing under normal operating conditions. While specific warranty details may vary, National typically offers coverage against manufacturing defects, providing confidence in the product’s reliability for manual transmission maintenance.