3.0L Duramax

Doc's Diesel 3.0L Duramax Parts

Big-Truck Protection for the Smart-Money Diesel.

The 3.0L Duramax is the diesel for people who did the math—an inline-six in the Silverado and Sierra 1500 that delivers real torque and highway fuel economy the gas engines can't touch. But the math only works if the engine stays healthy, and a modern light-duty diesel is every bit as demanding about clean oil and clean fuel as its heavy-duty brothers. Doc's stocks the full maintenance lineup for the 3.0L Duramax, matched to your exact year, so the efficiency you paid for keeps paying you back.

Everything the Baby Duramax Needs.

Oil filters, fuel filters, engine air and cabin air filters, complete filter kits, oil change kits with the correct 7-quart capacity, and diesel treatments for cetane, injector cleanliness, and winter. One collection covers the whole service schedule for your half-ton diesel.

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

Every part meets or exceeds OEM design, fit, and function, installing Doc's parts correctly keeps your factory warranty intact, and the Fitment Guarantee backs every order: if it doesn't fit, we make it right. No guesswork. No BS.

Doc's Makes It Easy.

Enter your year and model in the Vehicle Selection Tool and we'll pull exactly what fits your truck. Stay on schedule—oil every 5,000 to 7,500 miles, fuel filters every 5,000 to 10,000—and the 3.0L will keep rewarding the decision you made at the dealership.

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

Grab a full kit and every order over $99 ships free anywhere in the U.S. You bought the diesel for the numbers. Doc's keeps the numbers good.