The 6.7L Powerstroke fuel filter is not one filter. It is two elements in two locations, and half the cheap “FD4625 kits” out there ship only one of them. Here is what the 2017-2019 kit actually contains, what it costs against every major channel in September 2026, and the install order that keeps air out of a CP4.2 pump.
A comparison of the two air filters a 2020-2023 Ram 1500 EcoDiesel actually needs — the engine element that feeds the turbo and the carbon cabin filter behind the glovebox — with real pricing from Mopar, Doc’s Diesel, Amazon and eBay, and the part-number trap that causes most wrong orders.
On my Ram, the cabin filter had never been changed — because for the first four years of its life, it had never existed. Here’s how to avoid that, and what the two filters actually cost.
The 2025-2026 Ram HD is a new platform, and it shows in the service bay. This guide separates what’s officially recalled from what’s only owner-reported, so you know which warning light to take seriously.
For 2025, Ram threw out the spin-on oil filter Cummins trucks had used since 2007 and replaced it with a top-load cartridge. The old part number doesn’t fit. Most parts counters don’t stock the new one yet. Here is the correct number, what it actually costs, and how to change it in twenty minutes.
A used Silverado 2500HD smelled like diesel inside the cab, and the fix was not the exhaust, the EGR, or the turbo — it was the cabin air filter behind the glove box, eight years old and never touched. Here is what fits, why carbon matters on a diesel, and what it costs.
Six years and 90,000 miles on my Ram 2500, and I had never once opened the access door behind the glove box. When I finally did, the filter came out gray and packed solid, with two dead wasps and a handful of pine needles. That is the pad you breathe through every time the A/C comes on.
The complete 2026 guide to diesel towing upgrade bundles. Learn why transmission and EGT cooling beat peak horsepower, three budget tiers from $300 to $4,000.
Choosing a Duramax DPF delete kit in 2026 comes down to generation, pipe diameter, and material. This guide covers LB7 through L5P.
