REV HD R1-S01 Steer Axle Wheel Seal | 12K Axle

REV HD R1-S01 Severe Duty Steer Axle Wheel Seal | 12,000 lb Axles

The REV HD R1-S01 REV-1 Severe Duty Wheel Seal is a premium steer axle seal engineered for heavy-duty trucks equipped with 12,000 lb steer axles. Designed to prevent lubricant loss while keeping water, dirt, and road contaminants out of the wheel end, the R1-S01 helps maximize bearing life and reduce costly wheel end failures.

Featuring REV HD's innovative Flex Seal™ design, the R1-S01 installs easier than conventional wheel seals while reducing the chance of cocked seal installation. Its heavy-duty construction, wider sealing surface, and multiple internal sealing lips provide superior sealing performance for both oil and grease lubricated hubs.

Trusted by fleets, owner-operators, and heavy-duty repair shops across North America, the REV HD R1-S01 is built to withstand the demanding conditions of commercial trucking, severe-duty applications, and off-road environments. :contentReference[oaicite:0]{index=0}

Key Features

• Premium REV HD REV-1 Severe Duty wheel seal
• Designed for 12,000 lb steer axles
• Compatible with oil and grease lubricated hubs
• Flex Seal™ design helps prevent cocked installation
• Heavy-duty steel case construction
• Multiple internal sealing lips for superior protection
• Wide sealing surface improves sealing performance
• Excellent protection against dirt, water and road contaminants
• Includes Seal Extend installation lubricant

Specifications

• Brand: REV HD
• Part Number: R1-S01
• Product Line: REV-1 Severe Duty
• Application: Steer Axle Wheel Seal
• Axle Rating: 12,000 lb
• Seal Outside Diameter: 4.840"
• Seal Inside Diameter: 3.500"
• Compatible Lubricants: Oil or Grease

Major Cross Reference Numbers

• SKF / Chicago Rawhide 35058
• SKF / Chicago Rawhide 35059
• SKF / Chicago Rawhide 35066
• SKF 35103
• National 370001A
• National 380001A
• Stemco 308-0836
• Stemco 382-8036
• Stemco 383-0136
• Stemco 383-0236
• ConMet 10045885
• Meritor MER0136
• Meritor MER0236
• Timken 370001A
• TruckPro RHR1-S01
• TMC 65263U
• REV HD R1-S01

Common Applications

• Freightliner Cascadia
• Freightliner Columbia
• Freightliner FLD120
• Kenworth T680
• Kenworth T800
• Kenworth W900
• Peterbilt 379
• Peterbilt 389
• Volvo VNL Series
• Mack CH & CX Series
• Western Star 4900
• Class 6–8 Trucks with 12K Steer Axles

Why Replace Your Wheel Seal?

A leaking wheel seal allows lubricant to escape while permitting dirt and moisture to enter the hub assembly. This can lead to premature wheel bearing failure, overheated hubs, contaminated brake components, and expensive roadside repairs. Replacing worn seals during brake or wheel bearing service helps maintain proper lubrication and extends wheel end service life. :contentReference[oaicite:1]{index=1}