National 324204 Engine Crankshaft Seal - Front

Overview of National Engine Crankshaft Seal 324204

The National 324204 engine crankshaft seal is designed for reliable sealing performance in Saturn vehicles, including SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2 models. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 1.535 inches (39.000 mm)
• Outside diameter: 2.259 inches (57.380 mm)
• Thickness/width: 0.380 inches (9.650 mm)
• Material: Durable fluoro-elastomer for heat and chemical resistance
• Helix type: Clockwise-spiral lip design for effective sealing
• Housing bore diameter: 2.244 inches (57.000 mm)
• Part number: 324204, part of the National 320000 series

Technical Details and Material Specifications

This National crankshaft seal features a fluoro-elastomer construction, providing enhanced resistance to high temperatures and engine fluids. The seal’s clockwise-spiral lip design ensures a tight fit around the crankshaft, minimizing oil leakage and contamination. With an inside diameter of 1.535 inches and an outside diameter of 2.259 inches, it fits precisely within the housing bore of 2.244 inches, ensuring optimal sealing performance. The 0.380-inch thickness balances durability with flexibility, accommodating engine vibrations and thermal expansion.

Compatible Saturn Models and Applications

This engine crankshaft seal is compatible with a range of Saturn models, including SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2. It is specifically designed to meet the sealing requirements of these vehicles’ crankshaft assemblies, helping maintain engine oil integrity and preventing leaks that can lead to engine damage.

Common Issues Addressed by the National 324204 Seal

• Prevents oil leaks around the crankshaft area
• Reduces contamination of engine oil by external debris
• Maintains proper oil pressure within the engine
• Minimizes wear on crankshaft bearings by retaining lubrication
• Helps avoid costly engine repairs due to oil loss

Installation Notes and Tips

When installing the National 324204 crankshaft seal, ensure the housing bore and crankshaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the lip. Verify the seal’s orientation matches the clockwise-spiral lip design for optimal sealing. Lubricate the seal lip lightly with clean engine oil before installation to reduce initial wear. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty Information

National’s 324204 crankshaft seal is manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precision design contribute to long service life under normal operating conditions. This part is backed by National’s quality assurance processes, ensuring consistent fit and function for Saturn SC, SL, and SW series vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.