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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 (22)

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 (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...

Redline Emissions Products Replacement DPF for Detroit-Mercedes (A0014907692 / REP 54081)
$1,165.00
Redline Emissions Products 54081 OEM DPF Replacement for Detroit Mercedes DD13 / DD15 / DD16 "Detroit One Box" **EPA16 and newer**. For the prior (older) version see the REP 52976 OEM: A6804914194, A0014907692, RA0014907692, EA0014907692, RA6804914194 Uses G03001 gaskets (included) and VB2007 clamp & VB2008 clamp (not included) Our filters...

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...

Durafit replacement DPF for Detroit Diesel (A6804910494 / C17-0077)
$1,308.00
Durafit OEM DPF Replacement for Detroit Diesel DD13 / DD15 (C17-0077) includes gaskets Replaces OEM Part Numbers: A6804910494 / A0004903692 Redline Part Number: RED 52977 Note: This product cannot be sold or shipped to CA at the present time.

Durafit replacement DPF for Detroit Diesel DD13 / DD15 (A0014903592 / C17-0076)
$1,107.00
Durafit OEM DPF Replacement for Detroit Diesel DD13 / DD15 (C17-0076) includes gaskets Replaces OEM Part Numbers: A0014903592 / A6804913594 / A6804910894 / A6804913494 / A0014903492 / A0004903792 Redline Part Number: RED 52976 Note: This product cannot be sold or shipped to CA at the present time.

Redline Emissions Products Replacement Clamp for Detroit (A0009957033 / VB2042)
$54.85
Redline Emissions Products replacement for Detroit A0009957033 OEM 12.5" V-clamp VB2042. This clamp is an exact-fit replacement for the more expensive OEM one. Fits Detroit Single DPF versions of the "OneBox" Replaces OEM: A0009957033, A0009956733 Also available in kit REP VB3019

Redline Emissions Products Replacement Clamp for Detroit (A6809950501 / VB2043)
$112.95
Redline Emissions Products replacement for Detroit A0009957033 OEM 13.6" V-clamp VB2043. This clamp is an exact-fit replacement for the more expensive OEM one. Fits Detroit Single DPF versions of the "OneBox" Replaces OEM: A6809950501, A0039955101 Also available in kit REP VB3019

Skyline OEM replacement DPF for DD13 / DD15 Detroit Diesel (A0024908392 / DQ0919-C)
$1,985.00
Skyline OEM DPF Replacement for Detroit Diesel Series DD13, Detroit Diesel DD15 (DQ0919-C) Each Skyline DPF / DOC is specifically designed as a direct replacement for the OEM filter. Our Exact-Fit™ approach makes installation fast and easy without cutting or welding to get you back on the road. Skyline Emissions filters are designed and manufact...

DPFXFIT OEM Replacement DPF for Detroit (A0024908392 / GESI-0097)
$1,962.00
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 compatib...
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