FAG SS3347 Wheel Seal - Rear

Wheel Seal for Ford E-350 Rear Axle

The FAG SS3347 wheel seal is built for rear wheel-end service on select Ford E-350 Econoline and E-350 Econoline Club Wagon applications. It uses a nitrile sealing material with a metal spring, auxiliary lip, and inner shell design to help keep contamination out and retain grease at the bearing.

For rear axle service on 1976-1980 Ford E-350 Econoline and related E-350 Club Wagon configurations, this seal is specified to match demanding wheel-end requirements. The FAG SS3347 is a direct-fit wheel seal for applications that call for a 4.185 in. outside diameter, 4.18 in. bore diameter, and 3.188 in. width.

Key Features

• Wheel seal for rear wheel-end applications
• Nitrile sealing material for durable sealing performance
• Metal, spring, auxiliary lip, and inner shell construction
• Seal outside diameter: 4.185 in. (106.299 mm)
• Bore diameter: 4.18 in. (106.172 mm)
• Seal width: 3.188 in. (80.975 mm)
• Cross-reference: Anchor 3385
• Part number: SS3347

Detailed Description

FAG SS3347 is a rear wheel seal engineered for vehicle-specific fitment where axle, bearing, and hub sealing dimensions must match exactly. It is designed to protect wheel-end components from dirt, dust, and moisture while helping prevent grease loss over the life of the bearing. This part number is used in select Ford E-350 Econoline and Ford E-350 Econoline Club Wagon rear applications, including configurations with dual rear wheels and specific axle notes.

Compatible With 1976-1980 Ford E-350 Econoline, rear, and 1977-1980 Ford E-350 Econoline Club Wagon, rear, depending on axle and ring gear configuration. Verify the notes for chassis breakpoints and axle details before ordering the FAG SS3347.

Common Problems This Seal Can Address

• Grease leakage at the rear wheel end
• Contamination from road dirt, dust, and moisture
• Premature bearing wear caused by seal failure
• Seal fitment issues from incorrect axle-end dimensions
• Wheel-end service on Ford E-350 rear axle assemblies

Installation Notes and Tips

Confirm bore diameter, outside diameter, and seal width against the original part before installation. Review the vehicle notes carefully for chassis number, dual rear wheel setup, axle type, and ring gear specification, since the listed Ford E-350 applications vary by configuration. 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 SS3347 is built for the demanding requirements of wheel-end sealing in rear axle service.