SKF 7400 Steering Gear Worm Shaft Seal

SKF 7400 Steering Gear Worm Shaft Seal

The SKF 7400 steering gear worm shaft seal is built for steering gear sealing applications where fluid retention and contamination control matter. It is a direct-fit style seal for select Mitsubishi and Dodge vehicles, including Mitsubishi Mighty Max, Dodge Raider, and Dodge Ram 50 applications.

Key Features

• Part number: 7400
• Sealing surface type: Nitrile
• Outside diameter: 1.387 in.
• Shaft diameter: 0.736 in.
• Width: 0.276 in.
• Engineered for steering gear worm shaft sealing service
• SKF seal design and material selection focused on fit, sealing performance, and durability

Detailed Description

SKF 7400 is a steering gear worm shaft seal designed around precise dimensional requirements and nitrile sealing material. SKF has a long history in seal engineering, and this part reflects that focus with premium material selection and application-specific construction. It is intended for steering gear assemblies where maintaining lubricant inside the gear and keeping contaminants out is critical. This part cross-references 5P6780 and MB166194 for the same application.

Compatible With 1986-1994 Mitsubishi Mighty Max, 1987-1989 Dodge Raider, 1983-1989 Dodge Ram 50, and 1983-1989 Mitsubishi Montero, this seal also applies to additional Dodge and Mitsubishi steering gear applications across the 1978-1994 model years. The SKF 7400 part number is commonly searched for steering gear worm shaft seal replacement on Mitsubishi Mighty Max and Dodge Ram 50 steering systems.

What It Helps Address

• Steering gear oil seepage at the worm shaft
• Loss of lubricant from the steering gear housing
• Contamination entering the steering gear assembly
• Wear-related sealing failure in older steering components
• Restoration of proper steering gear sealing during rebuild or repair

Installation Notes and Tips

Verify shaft diameter, outside diameter, and width before installation to confirm the seal matches the steering gear housing and worm shaft dimensions. Clean the sealing surfaces thoroughly and inspect the shaft for scoring or wear that could affect seal life. Proper alignment during installation helps prevent damage to the nitrile sealing lip and supports a reliable seal in service.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and controlled production standards. The brand’s seal engineering background and long-term use in automotive applications support consistent fit and sealing performance for steering gear service.