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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 (10)

Redline Emissions Products Replacement Gasket / Clamp kit (REP VB3019)
$168.50
Redline Emissions Products VB3019. Gasket and clamps kit for Detroit / Mercedes Western Star single filter OneBox systems. Freightliner does not offer these so we decided to make our own kit! Consists of the following: (1) VB2042 Clamp (OEM #A0009957033) (1) VB2043 Clamp (OEM #A6809950501, A0039955101) (1) G03007 Gasket (OEM #A0004921680) (5) ...
OEM Detroit Aftertreatment Wiring Harness (SUR A4721506220)

OEM Detroit Aftertreatment Wiring Harness (SUR A4721506220)
$425.00
OEM DETROIT WIRING HARNESS A4721506220 FOR OEM DETROIT-MERCEDES ONE-BOX APPLICATIONS. OEM SURPLUS FITS 2016 and newer Detroit Diesel Aftertreatment Systems Only! This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete units ...

New "Take-off" Detroit / Mercedes Aftertreatment Control Module / A0004469754
$475.00
OEM Detroit-Mercedes Aftertreatment Control Module (ACM) for One Box applications. Part #: A0004469754 - for 2016 and newer applications. No core charge required. This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete uni...
OEM Detroit One Box Pressure Tube (A6804913737)

OEM Detroit One Box Pressure Tube (A6804913737)
$38.00
OEM Detroit One Box Pressure Tube for Aftertreatment Systems. SUR A6804913737 These are brand new take-off parts from an unused complete assembly. For the replacement weld bung see BG2017. This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packag...

OEM Detroit / Freightliner One Box Pressure Sensor (SUR A4721530928)
$95.00
OEM Detroit / Freightliner One Box Pressure Sensor Part #: A4721530928 Fits 2016 and newer Detroit / Freightliner One Box Assemblies. (SUR A4721530928) This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete units from Detr...

OEM Detroit / Freightliner Exhaust Gas Temperature (EGT) sensor (A6805402117)
$40.00
OEM Detroit / Freightliner / Western Star Exhaust Gas Temperature Sensor (EGT) A6805402117 for OneBox assemblies. Fits 2016 and newer OneBox Aftertreatment systems. This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete un...

OEM Detroit / Freightliner Exhaust Gas Temperature (EGT) sensor (A6805401317)
$60.00
OEM Detroit / Freightliner / Western Star Exhaust Gas Temperature (EGT) Sensor A6805401317 for OneBox assemblies. Fits 2016 and newer OneBox Aftertreatment systems. This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete ...

OEM Detroit / Freightliner Exhaust Gas Temperature (EGT) sensor (A6805401917)
$75.00
OEM Detroit / Freightliner / Western Star Exhaust Gas Temperature Sensor (EGT) A6805401917 for OneBox assemblies. Fits 2016 and newer OneBox Aftertreatment systems. This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete u...

DPFXFIT for Detroit Diesel DD13, DD15 (A0014907692 / GESi-0081)
$1,030.00
This new aftermarket DPF is a direct replacement for the OEM unit. GESi filters are made of stainless steel housings and use new substrates, this ensures you get a product built to last. These filters also include necessary clamps and gaskets, and there is no core charge which means you can buy and install without worrying about getting compati...

OEM DETROIT Particulate Matter Sensor (A0111531328)
$250.00
Surplus OEM Detroit One Box Particulate Matter (PM) Sensor A0111531328 This is not an aftermarket part, it is OEM. These units are OEM "take-offs", they are brand new and unused but do not come in retail Detroit / Mercedes packaging. We buy complete units from Detroit / Mercedes and then break them down so that we can sell the pieces individuall...
Tags
- Everything in Freightliner One Box
- Cascadia
- Century
- Clamp Kits
- Columbia
- Coronado
- DD13
- DD15
- DD16
- Detroit One Box
- Detroit-Diesel
- Detroit-Mercedes
- DPF
- EGT
- Freightliner
- GESi
- Heavy Duty
- Mercedes-Benz
- OEM Surplus
- Redline Emissions Products
- sensor
- ship-15-per
- ship-flat10
- ship-flat13
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- SURPLUS
- TRUCK PARTS