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.
Freightliner One Box (1)
OEM Detroit / Mercedes / Western Star DOC & Clamp Kit (EA6804901456 / A6804901456)

OEM Detroit / Mercedes / Western Star DOC & Clamp Kit (EA6804901456 / A6804901456)
$8,250.00
This 2016 and newer OEM Detroit / Mercedes / Western Star DOC & Clamp Kit is brand NEW and has never been installed. This kit includes the DOC / SCR modules and inlet and outlet clamps and gaskets. This kit does not include any sensors, DPF, or other items. This product is not remanufactured, and does not have a core charge. OEM part number...