SKF 3687 Transfer Case Shift Shaft Seal

Reliable Transfer Case Shift Shaft Seal for Select Vehicles

The SKF 3687 Transfer Case Shift Shaft Seal is engineered to provide a precise fit and durable sealing performance for various Ford, Lincoln, Mazda, Mercury, and Cadillac models. Designed with nitrile sealing surfaces, this seal helps maintain transfer case integrity by preventing fluid leaks and contamination.

• Width: 0.250 inches for optimal sealing depth
• Outside Diameter: 0.753 inches ensuring a secure fit
• Shaft Diameter: 0.375 inches matching OEM specifications
• Sealing Surface Type: Nitrile for resistance to oil and wear
• Compatible with multiple Ford, Lincoln, Mazda, Mercury, and Cadillac models

Technical Details and Material Specifications

This transfer case shift shaft seal features a nitrile sealing surface, known for its excellent resistance to petroleum-based fluids and abrasion. The precise dimensions—0.250 inch width, 0.753 inch outside diameter, and 0.375 inch shaft diameter—ensure a tight seal around the shift shaft, reducing the risk of leaks that can lead to transfer case damage. The SKF 3687 part number corresponds to a high-quality replacement seal designed to meet or exceed OEM standards for durability and fitment.

Compatible Vehicles and Applications

This transfer case shift shaft seal is compatible with a range of vehicles, including Ford models such as the F-150, F-250, Bronco, Explorer, and Ranger; Lincoln Mountaineer and Navigator; Mazda B2300, B2500, B2600, B3000, and B4000; Mercury Mountaineer; and Cadillac SRX and SRX models. The SKF 3687 seal is suitable for use in transfer cases requiring a 0.375 inch shaft diameter seal with nitrile sealing surfaces.

• Prevents transfer case fluid leaks
• Reduces contamination from dirt and debris
• Maintains proper transfer case operation
• Helps avoid costly transfer case repairs
• Ensures smooth shifting performance

Installation Notes and Tips

When installing the SKF 3687 transfer case shift shaft seal, ensure the transfer case and surrounding components are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the nitrile sealing surface. Verify the shaft diameter matches the 0.375 inch specification to ensure proper fitment. It is recommended to inspect the shift shaft and transfer case housing for wear or damage before installation.

Quality Assurance and Warranty

SKF manufactures the 3687 transfer case shift shaft seal to meet stringent quality standards, providing reliable sealing performance for compatible vehicles. While specific warranty details are not provided, SKF products typically adhere to industry standards for durability and material quality, supporting long-term service life in automotive applications.