SKF 17720 Transfer Case Output Shaft Seal - Front

Reliable Transfer Case Output Shaft Seal for Chevrolet, Dodge, and GMC

The SKF 17720 transfer case output shaft seal is engineered to provide a precise fit and durable sealing performance for select Chevrolet, Dodge, and GMC trucks and SUVs. Designed with nitrile and Teflon sealing surfaces, this seal ensures effective protection against leaks and contamination.

• Width: 0.485 inches for optimal sealing depth
• Outside Diameter: 3.066 inches to match transfer case housing
• Shaft Diameter: 1.750 inches for accurate shaft fitment
• Sealing Surface Type: Nitrile/Teflon for enhanced wear resistance and chemical compatibility
• Compatible with multiple Chevrolet, Dodge, and GMC models including K5 Blazer, K10, K1500, Ramcharger, and more

Detailed Description of SKF Transfer Case Output Shaft Seal 17720

This SKF transfer case output shaft seal (part number 17720) is designed to maintain the integrity of the transfer case by preventing fluid leaks around the output shaft. The combination of nitrile and Teflon materials in the sealing surface offers a balance of flexibility and durability, resisting heat, oil, and contaminants commonly encountered in automotive applications. With a width of 0.485 inches and an outside diameter of 3.066 inches, this seal fits securely within the transfer case housing, while the 1.750-inch shaft diameter ensures a tight seal around the output shaft itself.

Compatible with Chevrolet models such as the K5 Blazer, K10, K1500, and their Suburban variants, as well as Dodge Ramcharger and GMC trucks including the K20, K2500, and W-series, this seal is suitable for a range of heavy-duty and off-road vehicles requiring reliable transfer case sealing.

Common Applications and Issues Addressed

• Prevents transfer case fluid leaks that can lead to drivetrain damage
• Protects against dirt and debris intrusion into the transfer case
• Reduces wear on the output shaft by maintaining proper lubrication
• Helps maintain transfer case pressure and performance
• Addresses seal degradation due to heat and chemical exposure

Installation Notes and Tips

• Ensure the transfer case output shaft and housing are clean and free of debris before installation
• Lubricate the sealing surface lightly with compatible grease or fluid to ease installation
• Use proper tools to press the seal evenly into the housing without distortion
• Verify shaft diameter matches the 1.750-inch specification for correct fit
• Inspect the old seal and surrounding components for wear or damage during replacement

Quality Assurance and Warranty

SKF manufactures the 17720 transfer case output shaft seal to meet stringent quality standards, ensuring consistent performance and durability. While specific warranty details may vary, SKF products typically come with a limited warranty against manufacturing defects. Using genuine SKF parts helps maintain vehicle reliability and transfer case integrity.