SKF 39935 Engine Crankshaft Seal - Rear

Reliable Engine Crankshaft Seal for Precise Fitment

The SKF 39935 engine crankshaft seal is engineered to provide a durable and effective sealing solution for various automotive applications. Designed with precision dimensions and a silicone sealing surface, this seal ensures optimal performance and longevity in demanding engine environments.

• Width: 0.438 inches for a compact and secure fit
• Outside Diameter: 5.004 inches to match specific crankshaft housings
• Shaft Diameter: 4.000 inches for accurate shaft compatibility
• Sealing Surface Type: Silicone for enhanced resistance to heat and oil
• Part Number: 39935 for easy identification and replacement

Technical Details and Material Specifications

The SKF 39935 crankshaft seal features a silicone sealing surface, which offers superior flexibility and resistance to high temperatures compared to traditional rubber seals. The precise dimensions—0.438 inch width, 5.004 inch outside diameter, and 4.000 inch shaft diameter—ensure a tight seal around the crankshaft, minimizing the risk of oil leaks and contamination. This seal is suitable for use in engines requiring these specific measurements, commonly found in certain Ford and Chevrolet models, among others.

Applications and Common Issues Addressed

This engine crankshaft seal is designed to maintain engine integrity by preventing oil leaks and protecting internal components. It is compatible with vehicles that require a 4.000 inch shaft diameter seal with a 5.004 inch outside diameter, such as select Ford F-150 and Chevrolet Silverado models. The SKF 39935 seal helps resolve issues including:

• Oil leakage around the crankshaft area
• Contamination of engine oil by dirt or debris
• Premature wear of engine components due to improper sealing
• Reduced engine performance caused by oil loss
• Increased maintenance costs from frequent seal replacements

Installation Notes and Recommendations

When installing the SKF 39935 crankshaft seal, ensure the crankshaft and housing surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the silicone sealing surface. Lubricate the seal lightly with engine oil before installation to facilitate a smooth fit. Verify the seal dimensions match the vehicle’s specifications to avoid improper fitment.

Quality Assurance and Warranty Information

SKF manufactures the 39935 crankshaft seal under strict quality control standards to meet OEM specifications. The use of silicone sealing material enhances durability and resistance to engine conditions. While specific warranty details may vary, SKF typically offers coverage against manufacturing defects, ensuring reliability and performance for automotive professionals and enthusiasts.