FAG SS4977 Wheel Seal - Rear Inner

FAG SS4977 Wheel Seal for Select Nissan and Toyota Applications

The FAG SS4977 wheel seal is built for wheel-end service where contamination control and grease retention matter. It is engineered to help protect bearing components from dirt, dust, and moisture while maintaining lubricant inside the hub assembly.

Compatible With select 1983-1995 Nissan and Toyota pickup, 4Runner, Van, Pathfinder, D21, and 200SX applications, this seal is sized for specific rear, front, and inner or outer wheel-end positions depending on the vehicle.

Key Features

• Part number: SS4977
• Wheel seal for driveline and axle service
• Nitrile sealing material
• Rubber seal with spring and auxiliary lip design
• Bore diameter: 1.732 in. / 43.993 mm
• Seal outside diameter: 1.741 in. / 44.221 mm
• Seal width: 1.339 in. / 34.011 mm
• Designed to help retain grease and block contamination at the wheel end

Detailed Description

FAG SS4977 is a wheel seal designed to meet vehicle-specific requirements for wheel-end sealing. The nitrile sealing material and rubber spring-loaded construction with an auxiliary lip are selected to support sealing performance in demanding axle and hub environments. This seal is used in applications where the correct bore, outside diameter, width, and position must match the vehicle specification exactly. FAG SS4977 also cross-references Timken 223400 and BBB Industries 13423 for the same application.

Fits 1995 Nissan Pickup, rear outer. Fits 1984-1995 Toyota Pickup, 1984-1989 Toyota 4Runner, 1984-1989 Toyota Van, 1990-1994 Nissan D21, 1987-1994 Nissan Pathfinder, 1986-1989 Nissan D21 rear inner with dual rear wheels, and 1988 Nissan 200SX front. Fits 1983 Toyota Pickup as listed in the application data.

What It Helps Address

• Grease loss at the wheel end
• Dirt, dust, and moisture intrusion into hub components
• Wear caused by contaminated bearing lubricant
• Seal leakage from a worn or damaged wheel seal
• Incorrect sealing dimensions during wheel-end repair

Installation Notes and Tips

Verify the seal dimensions, position, and axle configuration before installation. Match the bore diameter, outside diameter, and width to the original application, especially on Nissan Pickup, Toyota Pickup, and Toyota 4Runner wheel-end service. Clean the hub and sealing surface thoroughly, and inspect the bearing and spindle area for wear before installing the new seal.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. The SS4977 is built for application-specific fitment and wheel-end protection in the listed Nissan and Toyota vehicles.