Freightliner One Box

We’ve expanded our stock of genuine, new OEM One Box units for Freightliner, Detroit, Mercedes, and Western Star trucks. These are direct from the manufacturer so we can pass on big savings to you – better than most dealer pricing – in fact.

Need a One Box? We’ve got you covered. Whether you need a complete One Box assembly or individual components like DOCs, SCR units, DPFs, sensors, or filters, we have what you need.

Browse our current inventory of One Box units & related parts:

• DOC & Clamp Kits: Bare DOC & SCR unit.
• Complete One Box Assemblies: Includes DPFs, sensors, & electronics.
• Individual Components: Sensors, filters, & electronics.

Not sure which One Box is right for you? We’re happy to help. If you can provide the part number from your old One Box, it will help us quickly identify the correct replacement. Call us today! We’re here to assist you.