2025-2026 6.7L 24V Cummins

2025-2026 RAM 6.7L 24V Cummins Parts

Start the Next 300,000 Miles Right.

You just put serious money into the newest 6.7L 24V Cummins on the road—now comes the decision that shapes the next 300,000 miles: who maintains it, and with what. The 2025-2026 RAM Heavy Duty is the most refined Cummins generation yet, and the best time to start doing your own maintenance is the first service, not the fifth. This collection is every part Doc's builds for the 2025-2026 6.7L 24V Cummins—filters, kits, oil, and treatments matched to the newest trucks—so you can skip the dealership line, keep the service records in your own hands, and give a brand-new Cummins the start it deserves.

Coverage for the Newest Cummins, Right Now.

Plenty of aftermarket brands take years to catch up to a new model. Doc's doesn't. This collection covers the 2025-2026 RAM 2500 and 3500 6.7L 24V Cummins with oil filters, fuel filters and fuel/water separators, engine air filters, cabin air filters, and complete filter kits and maintenance kits—including our 5W-40 Full Synthetic Oil + Filter Maintenance Kits that put the entire service in one box. Add Doc's diesel treatments for cetane, injector cleanliness, and winter protection, and your new truck's whole maintenance program is covered from day one.

OEM Specs Met or Exceeded. Warranty Intact. Guaranteed to Fit.

On a truck this new, the warranty question matters—so here's the straight answer: your factory warranty stays in effect when Doc's filters are installed correctly and serviced to the engine manufacturer's recommendations. Every part in this collection is engineered to meet or exceed OEM design, fit, and function, which is exactly what federal warranty law requires of a replacement part. You don't owe the dealership your maintenance business to keep your coverage—you owe your truck quality parts, changed on time. And with our Fitment Guarantee, if a part doesn't fit your 2025-2026 Cummins, we'll make it right. No guesswork. No BS.

Doc's Makes It Easy to Get the Right Parts.

The fastest path is our Vehicle Selection Tool—enter your year and model, and we'll show you exactly what fits your truck. One important note for Cummins owners: RAM revised the 6.7L for 2025, and parts for these trucks are not the same as the 2019-2024 generation—even though the badge on the fender hasn't changed. If your truck is a 2025 or 2026, shop this collection specifically, and if you're servicing an older Cummins in the same driveway, grab its parts from its own year range. Same engine family, different filters.

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

A new Cummins is a long-haul investment, and the maintenance habits you set now decide what it's worth in a decade. Stock up on a maintenance kit, a spare set of filters, and a season of fuel treatment—every order over $99 ships free anywhere in the U.S. The dealership had it for the sale. Doc's has it for the next 300,000 miles.