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Caterpillar equipment is well-designed and reliable, but no heavy equipment lasts forever. Whether it’s a Cat diesel truck, or heavy machinery on your construction site, a failed aftertreatment part creates problems you really don’t need. Buying old reman parts gets you moving again, but often means another breakdown soon afterwards, causing more delays and more costs. Roadwarrior’s new aftermarket DPFs, SCRs and DOCs are designed to offer the ultimate performance standards, letting you get another 500,000 miles out of a well-maintained Caterpillar truck. As the only manufacturer to offer aftertreatment parts for construction, a premium new Diesel Particulate Filter could dramatically increase the work life of your heavy machinery too. Roadwarrior offers Heavy-Duty Emissions parts for Caterpillar that can be shipped from any of our warehouses in Canada and the United States of America. Heavy-Duty Emissions parts for Caterpillar need to be tough and durable, Roadwarrior can help with that

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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!


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 in Ontario, to ALL 50 states, including Alaska and Hawaii within 2-4 days.