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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 (16)

Redline Emissions Products Replacement for Detroit / Mercedes One Box Gasket / Clamp Kit (REP VB3008)
$288.00
Redline Emissions Products VB3008 Replacement kit for Detroit ONE BOX V BAND / GASKET KIT Kit includes: (2) G03001 (2) G03004 (2) VB2007 (Nominal Inside Diameter:10.59") (2) VB2008 (Nominal Inside Diameter:10.5") This kit fits: Detroit DD13-DD15 One Box Assembly
Redline Emissions Products Replacement for Detroit / Mercedes Gasket / Clamp Kit (REP VB3009)

Redline Emissions Products Replacement for Detroit / Mercedes Gasket / Clamp Kit (REP VB3009)
$148.00
Redline Emissions Products VB3009 Replacement kit for Detroit ONE BOX V-BAND / GASKET KIT Kit includes: (1) VB2007 (Nominal Inside Diameter:10.59") (1) VB2008 (Nominal Inside Diameter:10.5") (1) G03001 This Kit fits: Detroit Mercedes DD13 / DD15 DPF (A6804910894 / RED 52976) and Detroit Diesel DD13 / DD15 / DD16 DPF (A6804910494, A0004903692,...

Redline Emissions Products Replacement for Detroit / Mercedes One Box Gasket / Clamp Kit (REP VB3011)
$325.00
Redline Emissions Products VB3011 Replacement kit for Detroit One Box V Band / Gasket Kit Kit includes: (2) VB2007 (Nominal Inside Diameter:10.59") (2) VB2008 (Nominal Inside Diameter:10.5") (2) G03001 (Spiral Wound Gasket) (10) Bolt & Clip sets for the heat shield This Kit fits: Detroit Mercedes DD13 / DD15 DPF (A6804910894 / RED 52976) ...
Redline Emissions Products Replacement for Detroit / Mercedes Gasket / Clamp Kit (REP VB3013)

Redline Emissions Products Replacement for Detroit / Mercedes Gasket / Clamp Kit (REP VB3013)
$188.95
Redline Emissions Products VB3013. For mounting DPF's into Detroit Diesel ONE BOX assembly. Not offered by Freightliner so we made our own kit. Consist of: (2) Redline VB2007 (10.59") clamps (2) Redline G03001 gaskets. This Kit fits: Detroit Mercedes DD13 / DD15 DPF (A6804910894 / RED 52976) and Detroit Diesel DD13 / DD15 / DD16 DPF (A680491...

Redline Emissions Products Replacement for Detroit / Mercedes One Box Gasket / Clamp Kit ( A0019959702 / REP VB3014 )
$44.25
Redline Emissions Products VB3014 Replacement kit for Detroit A001995970 exhaust clamp and seal kit fits Detroit / Mercedes ONE BOX inlet and outlet flanges. Consists of (1) Redline VB2020 clamp and (1) Redline G03004 gasket. Fits Detroit / Mercedes / Western Star ONEBOX Inlet / Outlet locations.

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) ...

Redline Emissions Products Replacement Clamp and Gasket Kit for One Box (REP VB3020)
$350.00
Redline Emissions Products VB3020 Replacement Kit for Detroit One Box V Band / Gasket Kit. This kit is designed to make the servicing of your Detroit One Box kit as simple as it can be. In this kit, you will find the gaskets and clamps for both DPFs, as well as the bolt and clips that attach the heat shield to the frame of your One Box. Recently...

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...

Redline Emissions Products Replacement for Detroit Mercedes DD13 / DD15 DPF One Box (A6804910894 / REP 52976)
$1,150.00
Redline Emissions Products 52976 OEM DPF Replacement for Detroit Mercedes DD13 / DD15 "Detroit One Box" OEM: A6804910894, A0004903792, A6804913494, A0014903492, A6804913594, A0014903592, EA0014903492 Uses G03001 gaskets (included) and VB2007 clamp & VB2008 clamp (not included) Our filters are made in the USA, meet or exceed OEM specificati...

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

Redline Emissions Products Weld Bung (BG2015) - M20 X 1.50, 1.18" OD, .472" H, Flat Flare Stepped. Replaces Detroit 23539608
$22.50
Redline Emissions Products OEM Replacement Weld Bung (BG2015) Instead of buying a new DPF you can now simply replace the bung! Crafted out of high quality stainless steel, these bungs allow you to position your sensor where it needs to be, ensuring proper fitment. This weld bung and many other popular bungs are now available in our popular weld...
Tags
- Everything in Freightliner One Box
- Cascadia
- clamp
- Clamp Kits
- Columbia
- Coronado
- D16
- DD13
- DD15
- DD16
- Detroit One Box
- Detroit-Diesel
- Detroit-Mercedes
- DPF
- Flare: Flat
- Flare: Normal
- Freightliner
- gasket
- Heavy Duty
- M12 X 1.25
- M14 X 1.50
- M16 X 1.00
- M16 X 1.50
- M20 X 1.50
- Mercedes-Benz
- Redline Emissions Products
- ship-15-per
- ship-flat10
- ship-flat13
- ship-flat50
- Stepped