National 223230 Engine Crankshaft Seal - Front

Overview of National Engine Crankshaft Seal 223230

The National 223230 engine crankshaft seal is designed to provide reliable sealing performance for select Saab and Subaru vehicles. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 1.260 inches (32.000 mm)
• Outside diameter: 1.781 inches (45.230 mm)
• Thickness: 0.315 inches (8.000 mm)
• Sealing material: Polyacrylate for enhanced durability
• Clockwise-spiral lip design for effective sealing
• Compatible housing bore: 1.772 inches (45.000 mm)

Technical Details and Material Specifications

This National crankshaft seal (part number 223230) features a polyacrylate sealing material known for its resistance to heat and oil degradation. The clockwise-spiral lip design ensures a tight seal around the crankshaft, reducing the risk of oil leakage. With precise dimensions including a 1.260 inch (32 mm) inside diameter and a 1.781 inch (45.230 mm) outside diameter, this seal fits securely within the housing bore of 1.772 inches (45 mm). The 0.315 inch (8 mm) thickness provides a robust barrier against contaminants while maintaining flexibility for engine movement.

Compatible Vehicles and Applications

This engine crankshaft seal is compatible with various Saab and Subaru models, including the Saab 9-2X and Subaru models such as the Baja, Forester, Impreza, Legacy, Outback, WRX, and WRX STI. It is specifically designed to meet the sealing requirements of these vehicles’ crankshaft assemblies, ensuring proper engine function and longevity.

Common Issues Addressed by National 223230 Seal

• Prevents oil leaks around the crankshaft area
• Reduces engine contamination from dirt and debris
• Maintains oil pressure by sealing the crankshaft housing
• Minimizes wear on engine components due to oil loss
• Helps avoid costly engine repairs related to seal failure

Installation Notes and Tips

When installing the National 223230 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 sealing lip. Verify the seal orientation matches the clockwise-spiral lip design for optimal performance. It is recommended to inspect the crankshaft and surrounding components for wear before installation to ensure a proper fit and long service life.

Quality Assurance and Warranty

National engine crankshaft seals are manufactured 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 provide confidence in product reliability.