National 228009 Engine Crankshaft Seal - Rear

National Engine Crankshaft Seal Overview

The National 228009 engine crankshaft seal is designed to provide reliable sealing performance for various Nissan models. Engineered with precision, this oil seal helps maintain engine integrity by preventing oil leaks around the crankshaft.

• Inside diameter: 3.150 inches (80.000 mm)
• Outside diameter: 3.946 inches (100.230 mm)
• Thickness/width: 0.394 inches (10.000 mm)
• Material: Durable silicone for enhanced resistance
• Helix type: Counter-clockwise spiral lip design for effective sealing
• Compatible housing bore: 3.937 inches (100.000 mm)
• Part number: 228009, Series 220000

Detailed Product Description

The National 228009 crankshaft seal is crafted from high-quality silicone material, offering excellent durability and resistance to heat and oil degradation. Its counter-clockwise spiral lip design ensures a tight seal around the crankshaft, minimizing the risk of oil leaks and contamination. With an inside diameter of 3.150 inches and an outside diameter of 3.946 inches, this seal fits precisely within a 3.937-inch housing bore, making it suitable for specific Nissan vehicles. The 10 mm thickness provides a robust barrier against engine fluids, maintaining optimal engine performance.

Compatible Nissan Models and Applications

This engine crankshaft seal is compatible with a range of Nissan vehicles, including the 240SX, Altima, D21, Frontier, Pickup, and Xterra. It is designed to meet the sealing requirements of these models, ensuring proper fitment and function when replacing worn or damaged seals.

Common Issues Addressed by the National 228009 Seal

• Prevents oil leaks around the crankshaft area
• Reduces engine contamination from external debris
• Maintains proper oil pressure within the engine
• Minimizes wear on crankshaft bearings
• Helps avoid costly engine repairs due to seal failure

Installation Notes and Tips

When installing the National 228009 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches the counter-clockwise spiral lip design for optimal sealing performance. Lubricate the seal lip lightly with engine oil before installation to reduce initial wear.

Quality Assurance and Warranty

National manufactures the 228009 crankshaft seal to meet industry standards for durability and performance. The silicone material and precise dimensions contribute to a reliable sealing solution. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product.