Heavy Duty DOCs
If your DPF is plugging up faster than usual or your exhaust temperatures aren't hitting the marks for a proper regen, your Diesel Oxidation Catalyst (DOC) is often the hidden culprit. The DOC is the 'furnace' of your aftertreatment system—it’s responsible for oxidizing carbon monoxide and unburnt fuel to generate the heat your DPF needs to burn off soot. When a DOC gets face-plugged or loses its chemical efficiency, your whole system starts to fail. We stock a wide variety of high-performance aftermarket DOCs for the heavy hitters, for the Cummins, Detroit, and Navistar MaxxForce applications.
At DPF Super Store, we focus on helping Canadian owner-operators and fleets skip the dealer markups and the logistical headache of core charges. All of our heavy-duty DOCs are sold as brand-new units with no core return required. We ship directly from our warehouses in Vancouver and Toronto, so you can count on fast, coast-to-coast delivery that keeps your downtime to a minimum.
If you’re not sure if your DOC is the reason for your high backpressure, reach out to our team—we’ll help you figure things out and find the exact replacement you need to get back on the road.
