National 228015 Engine Crankshaft Seal - Rear

Overview of National Engine Crankshaft Seal 228015

The National 228015 engine crankshaft seal is designed for reliable sealing performance in various Acura, Honda, and Isuzu vehicles. 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: 3.945 inches (100.200 mm)
• Thickness/width: 0.394 inches (10.000 mm)
• Material: Durable silicone for enhanced resistance
• Helix type: Clockwise-spiral lip design for effective sealing
• Compatible housing bore: 3.937 inches (100.000 mm)
• Part number: 228015, series 220000

Technical Details and Specifications

This National engine crankshaft seal (part number 228015) features a silicone construction that offers excellent durability and resistance to heat and oil degradation. The seal’s clockwise-spiral lip design ensures a tight fit around the crankshaft, minimizing oil leakage and contamination. With an inside diameter of 3.150 inches and an outside diameter of 3.945 inches, it fits precisely into housings with a bore size of approximately 3.937 inches. The 0.394-inch thickness provides a robust barrier to maintain engine oil containment under various operating conditions.

Compatible Vehicles and Applications

This crankshaft seal is compatible with multiple Acura, Honda, and Isuzu models, including the Honda Accord, Civic, Civic del Sol, CL, CR-V, CRX, EL, Integra, Odyssey, Prelude, TL, and the Isuzu Oasis. It is specifically designed to meet the sealing requirements of these vehicles’ engine crankshafts, ensuring proper fit and function.

Common Issues Addressed by National 228015 Seal

• Prevents oil leaks around the crankshaft area
• Reduces engine contamination from external debris
• Maintains oil pressure and engine lubrication integrity
• Minimizes wear on crankshaft bearings
• Helps avoid costly engine repairs due to oil loss

Installation Notes and Tips

• Ensure the housing bore and crankshaft surfaces are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore to avoid damage
• Verify the seal lip orientation matches the clockwise-spiral design for optimal sealing
• Check for proper fitment with the specific vehicle model before final installation

Quality Assurance and Warranty

National’s 228015 engine crankshaft seal is manufactured to meet industry standards for durability and performance. The silicone material and precision design contribute to a reliable sealing solution. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the product’s quality and longevity.