Timken 224872 Transfer Case Input Shaft Seal

Timken Transfer Case Input Shaft Seal for Toyota H55F

The Timken 224872 transfer case input shaft seal is built for Toyota H55F applications that need reliable lubricant retention and contamination control. It is a direct-fit sealing component for 1982-1987 Toyota Land Cruiser, 1982-1987 Toyota Pickup, and 1987 Toyota Van models with the H55F transmission setup.

Key Features

• Precision sealing design helps keep gear oil and grease inside the transfer case
• Reinforced outer case resists installation damage and supports long-term durability
• Ribbed S-Nitrile inner diameter helps seal minor shaft imperfections and promotes stable seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup
• Timken 224872 dimensions: 2.846 in. outside diameter, 1.890 in. shaft diameter, 2.835 in. housing bore, 0.335 in. width

Detailed Description

Built for transfer case service, this Timken seal is sized for a 72.29 mm outside diameter, 48.00 mm shaft diameter, 72.00 mm housing bore, and 8.50 mm width. The S-Nitrile material is selected for sealing performance in drivetrain environments where oil control and contamination resistance matter. Timken 224872 is a practical replacement choice for Toyota Land Cruiser, Toyota Pickup, and Toyota Van models equipped with the H55F configuration.

This part cross-references Gates 18973 for the same application.

What This Seal Helps Address

• Transfer case oil seepage at the input shaft
• Contamination entering the sealing area
• Leakage caused by minor shaft wear or surface imperfections
• Heat-related seal wear from poor lubricant circulation
• Reduced sealing performance during drivetrain service

Installation Notes and Tips

Inspect the shaft and housing bore before installation and clean all sealing surfaces thoroughly. Confirm the seal orientation before pressing it into place, and use proper installation tools to avoid distorting the outer case or lip. Verify the H55F application and match the dimensions to the original seal before assembly.

Quality Assurance

Timken oil and grease seals are engineered with reinforced construction, contamination exclusion features, and venting details that support dependable drivetrain sealing performance.