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Detroit Diesel

When the EPA introduced legislation lowering legal emission standards, Detroit Diesel introduced the 1-box aftertreatment system. The one-box combines the Diesel Particulate Filter (DPF), Diesel Oxidation catalyst (DOC) and Selective Catalytic Reduction (SCR) into one system. By introducing a catalytic converter, the 1-box keeps your diesel engine’s emissions within legal limits and the air you breathe clean. But your aftertreatment system has a shorter working life than your truck, and after 500,000 miles it may be worn out. That’s why Roadwarrior developed the first and only effective aftermarket 1-box, to complement our other Detroit Diesel aftertreatment parts. While a pre-cleaned reman replacement often fails soon after purchase, a brand new Roadwarrior part offers you up to 500,000 extra miles on your diesel engine.

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Better Coating, Better Performance.

Roadwarrior is the only manufacturer to use Metalcor® catalyst technology across its entire range of Diesel Oxidation Catalysts (DOCs) and Selective Catalytic Reduction catalysts (SCRs). Metalcor® catalysts feature high activity catalyst coatings fused to thinner, stronger, catalyst substrates to guarantee maximum performance under the harshest conditions.

Metalcor® catalyst coatings are designed and produced in our own labs. We then inspect each unit to ensure you get more fuel efficiency, lower consumption of DEF, and long term performance from your heavy duty engine!

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Roadwarrior Has You Covered!

All Roadwarrior parts include a full value 1-year warranty. To make the process hassle-free, our parts have a metal nameplate with the serial number, so even after 500,000 miles of service, it’s still easy to identify. This avoids the common problem of serial numbers printed on stickers that burn off after the first start-up, making them impossible to return. Our failsafe system allows us to work in your interests, honouring claims for on-road and off-road replacements, and giving you peace of mind.

And since Roadwarrior parts are designed to meet or exceed OEM specifications, you can rest easy knowing our direct fit parts will take the problems out of your aftertreatment without interfering with your OEM warranty.

Next Day Is Nice, Same Day is Better!​

A faulty emissions control system can cost you thousands in wasted man-hours as your heavy equipment sits in the shop awaiting a new part. Whether it’s a truck behind on orders, a bus that can’t take passengers, or heavy machinery delaying construction deadlines, Roadwarrior can get you moving again! 

Roadwarrior has twelve warehouses across the U.S.A. and Canada, which can deliver the most popular aftertreatment parts in 1-2 days. With over 1,000 DPFs, DOCs and SCRs on offer, Roadwarrior offers the largest aftertreatment catalogue.

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