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Roadwarrior’s Replacement One-Box

Invest in the Best for Your Detroit Diesel Engine

By combining a DPF, DOC and SCR into one product, the One-Box became a significant aftertreatment development. This compact system comes with a number of operational benefits. However, its working life is, unfortunately, shorter than that of the truck itself. That’s why our team at Roadwarrior developed the first aftermarket One-Box. This brand new replacement One-Box part is designed to help you get a million miles out of your diesel engine.

‘…Roadwarrior developed the first aftermarket One-Box…’

Since 2019, we’ve been the only aftermarket manufacturer to offer a One-Box replacement, and this head start has given us the R&D time to develop the most efficient replacement parts on the market. We will soon offer four One-Box aftertreatment systems, for Detroit Diesel, Volvo, Freightliner and Western Star. This is just one of the ways we take the problems out of your aftertreatment.


             Diesel Oxidation Catalyst :                                                                                            Our DOC contains a Metalcor® catalyst that treats the exhaust stream, converting the hydrocarbons and carbon monoxide into carbon dioxide and water.

               Diesel Particulate Filter                                           
Our DPF captures particulate matter and soot, further reducing polluting emissions. The trapped matter is then burnt off the filter by passive or active regens.

            Selective Catalytic Reduction                            
With the help of the DEF injected into the exhaust stream, the SCR catalyst significantly reduces NOx emissions, converting them into naturally occurring nitrogen and water vapour.


The Benefits of a One-Box

The benefits of One-Box exhaust aftertreatment technology over individual systems include frame flexibility, fuel efficiency and of course emissions reduction.

The compact design of the One-Box frees up valuable frame-rail space. This results in greater flexibility for larger fuel tanks, APUs and other chassis-mounted accessories. The original all-in-one design reduces installation time on the assembly line and offers weight savings. However, it requires more time and money to diagnose and service.

That’s why For Detroit Diesel engines, we also developed a modular One-Box, which can be split into three separate parts (DOC, DPF, SCR) and serviced or replaced individually. By including Selective Catalytic Reduction (SCR) in the design, the One-Box offers additional environmental benefits. The DOC and DPF reduce carbon emissions; meanwhile, the diesel exhaust fluid injector releases DEF, which the SCR uses to reduce NOx emissions.

 

Roadwarrior’s Replacement One-Box Advantage

Replacement One-Box

At Roadwarrior, our replacement One-Box was the best-selling aftermarket model in America in 2019 and 2020. As part of the DCL technology group, we included advanced Metalcor® catalyst technology for improved emissions control and fuel efficiency. We use only the highest-quality materials to offer your diesel engine a long service life. This policy has additional benefits like reduced DEF and fuel consumption.

Our improved design also resolved the issue of low NOx conversion efficiency from DEF buildup in the SCR mixing chamber. This problem is common in GHG14 generation One-Boxes—especially when the engine runs in humid climates, and high-speed and high-load conditions.

 

Roadwarrior's Replacement One-Box extends your engine life

The Downsides of a One-Box system

There are many advantages to an OEM One-Box system. However, one major disadvantage is that you often need to replace the entire system when one part breaks.

Good maintenance, regular regens and cleaning your DPF can all extend the life of your exhaust aftertreatment system. Without these measures, a DPF can become clogged with soot and ash, which can cause cracking and eventually DPF failure.

Having it professionally cleaned after 200,000 hours can significantly extend your DPF’s life, but eventually, it will need replacing. At Roadwarrior we offer competitively priced replacements, designed to meet or exceed the high standard you’d expect from OEM models.

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  1. […] modular One-Box design has the advantages of our classic Roadwarrior One-Box—the light, compact design freeing up valuable frame-rail space, improved fuel efficiency and […]

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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 emissions parts carry a full value 12 month warranty.

LightningVolt lithium batteries carry a full value 30 month 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.

*LightningVolt lithium batteries ship directly from Roadwarrior’s production facility within 2-4 days.

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