National 223750 Engine Crankshaft Seal - Front

Overview of National Engine Crankshaft Seal 223750

The National 223750 engine crankshaft seal is designed to provide reliable sealing performance for a variety of vehicles including Chrysler, Dodge, Ford, Hyundai, Kia, Land Rover, Lincoln, Mazda, Mercury, Mitsubishi, and Plymouth models. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 1.457 inches (37.000 mm)
• Outside diameter: 1.978 inches (50.250 mm)
• Thickness: 0.236 inches (6.000 mm)
• Material: Durable polyacrylate for enhanced oil resistance
• Helix type: Clockwise-spiral lip design for effective sealing
• Housing bore size: 1.969 inches (50.000 mm)
• Compatible with multiple vehicle makes and models

Technical Details and Specifications

The National 223750 crankshaft seal features a polyacrylate construction that offers excellent resistance to engine oils and high temperatures. Its clockwise-spiral lip design ensures a tight seal around the crankshaft, reducing the risk of oil leakage. The seal’s dimensions include an inside diameter of 1.457 inches (37 mm) and an outside diameter of 1.978 inches (50.25 mm), with a thickness of 0.236 inches (6 mm). This precise sizing allows for a secure fit within the housing bore of 1.969 inches (50 mm), making it suitable for a range of engine applications.

Compatible Vehicles and Applications

This engine crankshaft seal is compatible with various models from Chrysler, Dodge, Ford, Hyundai, Kia, Land Rover, Lincoln, Mazda, Mercury, Mitsubishi, and Plymouth. Notable compatible models include the Chrysler 3000GT, Dodge Caravan, Ford Mustang, Hyundai Sonata, Kia Sorento, Land Rover Discovery Sport, Mazda CX-5, and Mitsubishi Eclipse, among others. The part number 223750 ensures you are selecting the correct seal for these specific vehicles.

Common Uses and Problem Resolution

• Prevents oil leaks around the engine crankshaft
• Maintains engine oil pressure and cleanliness
• Reduces risk of engine damage due to oil contamination
• Eliminates noise and vibration caused by worn seals
• Helps maintain overall engine performance and longevity

Installation Notes and Tips

When installing the National 223750 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the lip or seal body. Verify the seal orientation matches the clockwise-spiral lip design for optimal sealing. It is recommended to inspect the crankshaft for wear or damage before installation to prevent premature seal failure.

Quality Assurance and Warranty

National engine crankshaft seals are manufactured to meet strict quality standards, ensuring durability and reliable performance. The polyacrylate material and precision design contribute to long service life under normal operating conditions. While specific warranty details for part number 223750 may vary, National typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for exact warranty terms.