National Seals 370001A Wheel Seal for Steer Axles Sensors It's the OE service filter

It's the OE service filter for Freightliner chassis fuel/water separator housings paired with Detroit Diesel engines

outer wheel end Wheel-End Style Manually adjusted Cross References

Representative vehicles using these transmissions:

Cat also offered a high-efficiency 256-8753 separator for the same housing

Baldwin: BD7309

National Seals 370001A Wheel Seal for Steer Axles Sensors It's the OE service filterNational 370001A is an oil bath wheel seal for steer axle hubs on Class 68 trucks and select medium duty applications. The unitized nitrile seal carries a spring loaded primary lip and SURE LOCK ribs, sealing the hub against contamination across a 40 F to 225 F operating range. Dimensions are 3. 500" shaft, 4. 873" outer diameter, 0. 925" width matching the legacy 370000 series envelope. Installs with National tool RD307 and is now distributed under