• Aftertreatment Info
  • Canadian-Built. OEM-Grade. Meet DPFXFIT DPFs & DOCs by GESi

    Jul 14, 2026

    If your DPF or DOC is on its way out, you already know the drill. The dealer quote comes back, you wince, and then you start thinking there’s got to be a better way. There usually is.  You could go searching all over the internet, checking if the part you’re looking at is the correct one (and in stock), etc. You’ve been down this road before. This takes time you don’t have.

    That's what we're here to save you. We’ve just added DPFXFIT by GESi to our lineup because we know it's one of the top replacement DPF and DOC options available in Canada right now. Strong words, we know — so let us back them up.

    Not All Aftermarket Parts Are the Same

    Anyone who tells you otherwise is skipping the details that matter. Substrate quality, coating coverage, and canister construction — these are the things that determine whether a replacement filter lasts or ends up back in the shop in 18 months. DPFXFIT was built with all three done right, and the tech behind it is worth understanding before you buy.

    The Technology Behind DPFXFIT

    DPFXFIT is designed and manufactured by GESi® (Global Emissions Systems Inc.), a company with over 27 years of emissions engineering and manufacturing experience. They describe their approach in three pillars (the 3 “C”s) — and once you understand them, the OEM comparison makes sense.

    CORE Every DPFXFIT unit is built around top-quality cordierite or silicon carbide substrates, sourced from the same tier-1 OE manufacturers that supply the OEMs. You're not getting a lower-grade stand-in — you're getting the same fundamental building block, at a fraction of the price.

    COATING Here's where a lot of aftermarket filters quietly cut corners: partial coating. Some brands only treat part of the filter, which limits performance and shortens its life. DPFXFIT applies a proprietary precious-metal washcoat from inlet to outlet across the entire unit. The result is a stronger molecular bond and a filter that holds up significantly longer under real operating conditions.

    CANNING The canister is one piece — stainless steel, with flanges formed directly into the can rather than welded on. That might sound like a small detail, but weld pin-hole leaks are one of the most common failure points in cheaper aftermarket units. Eliminating them means a cleaner, stronger, longer-lasting product right out of the box.

    Put it all together, and you've got something that confidently earns the "meets or exceeds OEM standards" claim rather than just printing it on the packaging.

    Built in Canada, For Canadian Conditions

    The “fourth C”, if you will, is that GESi is a privately held Canadian company out of Whitby, Ontario, and their background is more interesting than your average parts manufacturer. The company's roots are in high-performance motorsports, where the founder's racing experience pushed a pursuit of precision engineering that most emissions suppliers simply don't share. That mindset carries through into every DPFXFIT unit today.

    For Canadian fleets and shops, this is more than a feel-good story. These aren't parts engineered for a quick sale or shipped north as an afterthought. They're designed and built in a state-of-the-art manufacturing facility in Canada, by fellow Canadians. GESi is also backed by a distribution network built to serve the Canadian market quickly, coast to coast.

    What You Get with DPFXFIT

    DPFXFIT covers diesel engines from model year 2007 and newer, across light, medium, and heavy-duty applications. Whatever's in your fleet, there's a good chance there's a unit for it.

    Every order includes the OEM-quality gaskets and clamps — no sourcing extra hardware, no surprises on installation day. There's no core charge. And every unit is backed by a 3-year unlimited-mileage warranty, which is about as confident as it gets in the aftermarket emissions space.

    If you're chasing persistent fault codes or getting ready for an emissions inspection, that warranty isn't just a nice-to-have. It's peace of mind that the fix is going to stick.

    Why We Stock It

    We added DPFXFIT to our inventory because we saw a real gap in the market: Canadian shops and fleets are looking for high-quality, affordable, made-in-Canada replacement options they can get their hands on fast — without paying dealer prices or waiting on cross-border shipping delays and hassles.

    We keep DPFXFIT well stocked in our BC and Ontario warehouses, so we can ship coast to coast quickly. And if you're not sure which unit fits your situation, our team can help you find the right match by make, model, and engine config. That's the whole point of what we do.

    No core charges. No dealer cash grabs. No guesswork.

    With DPFXFIT, you get the four “C”s – Core, Coating, Canning, and Canada-made. You can buy with Confidence at DPFSuperStore.CA

    Ready to Find Your Fit?

    Browse the full DPFXFIT lineup (over 160 SKUs) at DPFSuperStore.CA, or reach out, and we'll help you get the right part for your truck.


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