2.8L Duramax

Doc's Diesel 2.8L Duramax Parts

Mid-size Truck. Full-size Standards.

The 2.8L Duramax turned the Colorado and Canyon into something rare: a midsize truck with genuine diesel credentials—real towing torque, serious range, and a cult following among overlanders who want to go far on few gallons. It's a small diesel with big-diesel needs, and treating it like a gas commuter is how small diesels die young. Doc's stocks the full maintenance lineup for the 2016-2022 2.8L Duramax, built to the same standard as our heavy-duty parts.

Everything the 2.8L Needs.

Oil filters, fuel filters, engine air and cabin air filters, complete filter kits, oil change kits, and diesel treatments for cetane, injector cleanliness, and cold weather. All matched to your exact year, all in one collection.

Built to OEM Specs. Backed by the Doc's Fitment Guarantee.

Every part meets or exceeds OEM design, fit, and function and carries the Fitment Guarantee: if it doesn't fit your Colorado or Canyon, we'll make it right. No guesswork. No BS.

Doc's Makes It Easy.

Enter your year in the Vehicle Selection Tool for exact fitments, and hold diesel intervals—oil every 5,000 to 7,500 miles, fuel filters on schedule—especially if your truck spends time loaded down on trails or towing at altitude.

Free Shipping on All U.S. Orders $99+

Stock a season of filters in one order and everything over $99 ships free anywhere in the U.S. The truck may be midsize. The standards aren't.