Why Your 2025–2026 RAM 6.7L Cummins Needs a Quality CCV Filter
At Doc's Diesel, we've seen what neglected crankcase ventilation does to a diesel engine over time. It doesn't announce itself loudly, no warning light, no dramatic failure. It just quietly allows harmful blow-by gases and oil mist to recirculate through your intake, coating your turbo, fouling your intercooler, and breaking down your engine oil until the damage is already done.
That's why we're proud to introduce our Doc's Diesel RAM CCV Filter, engineered specifically for the 2025–2026 RAM 6.7L Cummins in the 2500, 3500, 4500, and 5500. If you're putting this truck to work, we built this filter for you. We designed this filter to protect the parts of your engine that most owners don't think about until something goes wrong, and by then, the repair bill is never small.
What the CCV Filter Does and Why It Matters
Here's what we want every Cummins owner to understand: as your engine runs, combustion gases escape past the piston rings and collect in the crankcase. Without a quality CCV filter in place, those blow-by gases, saturated with oil vapor, get routed straight back into your intake system. The result is a slow buildup of carbon and oily residue on your intake valves, intercooler, and turbo blades.
Our CCV filter traps those oil vapors before they can re-enter the intake, keeping everything downstream cleaner and extending the life of your oil. It's a relatively simple part that protects a very expensive engine.
- Intake Protection: Filters oil mist before it re-enters the intake, protecting valves, turbo, and intercooler from carbon buildup.
- Built to Last: Heat and oil-resistant materials with a secure seal, no leaks or failures under pressure, vibration, or extreme cold.
- OEM Fit & Function: Meets or exceeds OEM specs. Direct replacement for 68677813AA. No modifications needed.
- Quality Tested: Every filter is inspected and tested for peak efficiency before it leaves our facility.
Engineered for Real-World Conditions
We didn't build this filter for ideal conditions. We built it for how our customers actually use their trucks, hauling loaded trailers in summer heat, crawling through trails in the mud, and firing up in sub-zero winter temperatures. Our CCV filter is rated for reliable performance in all of it: towing, off-roading, and extreme weather.
The durable, heat and oil-resistant materials hold up under sustained pressure and vibration, and the secure seal design means no blow-by messes or unexpected leaks even under heavy load. When you're counting on your RAM to get the job done, we want you to count on our parts the same way.
Fitment & Part Information
The Doc's Diesel CCV Filter (part number D804431) is a direct fit for the 2025–2026 RAM 2500, 3500, 4500, and 5500 equipped with the 6.7L Cummins diesel engine. It serves as a direct OEM replacement for factory part number 68677813AA with no modifications required.
When Should You Change Your CCV Filter?
Above all, we recommend following your vehicle manufacturer's warranty guidelines. As a general service interval for the 6.7L Cummins, here's what we suggest:
Every 50,000–60,000 miles (standard interval) No later than 67,500 miles (maximum)
If your truck sees heavy towing, dusty environments, or extended idle time, we'd lean toward the shorter end of that range. Our CCV filter is an affordable part, and compared to the cost of intake cleaning, turbo work, or an oil system repair, replacing it on schedule is always the smarter call.
Experience The Doc's Diesel Standard
Every part we carry at Doc's Diesel is built to an OEM design, fit, and function standard, meeting or exceeding OEM requirements. The D804431 is a direct replacement for factory part 68677813AA, which means it installs without modification and performs exactly as your truck expects.
We stand behind what we sell because we know these trucks and what they go through. If you just picked up a new 2025 or 2026 RAM and you want to protect it properly from day one, we're here to help you do exactly that.
Since jumping back in a diesel pickup truck, I put many miles a month. Dealership prices are outrageous and box stores are also high. My RV Transport buds told me about Doc’s. I tried them on my first oil change, saved $$ and all the filters fit perfectly and have been using them pretty much on a monthly basis. CCV filter is another one. Every 50K. Thanks Docs for great pricing and superior shipping.
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