Oil Bath Wheel Hub Seals - Rear/Drive Axle - H/D Truck 37 Series (Rubber) RD336 National

Single Spring Loaded Sealing Lip Provides Main Contact Point Reducing Shaft Interferance. Unitized Construction Provides Greater Structural Integrity and Reduces Possible Leak Points. Unique Rubber I.D. and O.D. Seal Includes Patented Sure-Lock I.D. Rib, Preventing Bore and Shaft Leaks and Contamination. Metal O.D. Maintains Position on Hub Bore. Four Contact Points Act as a Barrier for Additional Protection. An Installation Tool (Also Available) is Essential in Correctly Installing Oil Bath Seals. Offers Superior Containment Exclusion, Reduced Friction Build-Up and Longer Life Than Other Wheel Seals in it's Price Range.