FAG SS3399 Engine Crankshaft Seal - Rear

Reliable Engine Crankshaft Seal for Precise Fitment

The FAG SS3399 engine crankshaft seal is engineered to provide durable sealing performance for various vehicle makes and models. Designed with high-quality silicone sealing material and a robust metal spring auxiliary lip, this seal ensures effective protection against oil leaks and contaminants.

• Seal Type: Metal construction with spring, auxiliary lip, and inner shell for enhanced durability
• Sealing Material: High-grade silicone for temperature and wear resistance
• Bore Diameter: 120.675 mm (4.751 inches) for accurate fitment
• Seal Outside Diameter: 120.802 mm (4.756 inches) ensuring tight sealing
• Seal Width: 11.125 mm (3.75 inches) for optimal sealing depth

Technical Details and Construction

The FAG SS3399 crankshaft seal features a metal outer shell combined with a spring-loaded auxiliary lip that maintains consistent pressure against the crankshaft. The inner shell design supports the seal’s structural integrity, while the silicone sealing material offers resistance to heat, oil, and aging. This combination of materials and design elements helps maintain engine performance by preventing oil leakage and contamination ingress.

Applications and Common Issues Addressed

• Prevents oil leaks around the crankshaft area
• Reduces risk of engine contamination from dirt and debris
• Maintains engine oil pressure and efficiency
• Helps avoid premature wear of crankshaft bearings
• Suitable for replacement in vehicles requiring precise bore and seal dimensions

Installation Notes and Tips

Ensure the crankshaft surface is clean and free of debris before installing the FAG SS3399 seal. Use appropriate tools to press the seal evenly into the bore without damaging the sealing lip. Verify the seal’s orientation matches the engine manufacturer’s specifications to maintain proper sealing function.

Quality Assurance and Warranty

FAG manufactures the SS3399 crankshaft seal to meet stringent quality standards, ensuring reliable performance in demanding engine environments. While specific warranty details are not provided, FAG products typically adhere to industry quality controls and durability expectations.