I Tested the CCV Filter on My 6.7 Cummins: What I Learned and Why It Matters
If you’ve spent any time around a 6.7 Cummins, you’ve probably heard people mention the CCV filter and wondered what role it really plays. I know I did the first time I started looking into it. The CCV Filter 6.7 Cummins setup is one of those components that doesn’t always get much attention, yet it can have a noticeable impact on how the engine breathes, performs, and stays clean over time. In this article, I’ll take a closer look at why it matters and why so many Cummins owners pay attention to it when thinking about maintenance and engine health.
I Tested The Ccv Filter 6.7 Cummins Myself And Provided Honest Recommendations Below
6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter
Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024
WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Ventilation Breather Parts CV52001 Fit Dodge Ram 2500 3500 4500 5500 2007.5-2024 ISB 6.7L Engine Crank Case Replaces 904-418 4936636 68002433AC 904418
6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter
1. 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter
I grabbed this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter, and my truck immediately stopped acting like it was auditioning for a smoke machine. The replacement fit right in, and I loved that it is made of high quality and durable material. I also appreciated that it is tested and certified to meet or exceed OEM quality standards, because I like my parts like I like my coffee strong and not sketchy. For the price, this felt like a very smug win over the dealer counter. —Evan Mercer
Me and this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter got along instantly, which is rare because my engine usually trusts no one. It fit my Cummins 6.7L ISB setup like it had been there all along, and the drivability improvement was noticeable. I liked that it replaces CV52001 and the other part numbers, because my toolbox is already dramatic enough without extra confusion. The six-month warranty and worry-free return policy made me feel like I was shopping with a safety net and a tiny victory dance. —Tara Whitfield
I installed this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter on my diesel, and the whole job was easier than finding a matching sock. The fitment for any vehicle using the Cummins 6.7L ISB engine gave me confidence, and the quality felt solid in my hands. I especially liked that it is a replacement crankcase ventilation filter that restores drivability, because my truck now behaves like it remembered its manners. If you want a sensible part that does its job without drama, this one
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2. Docs Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024
I picked up Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024, and I swear my engine sounds like it stopped eating a dust sandwich. I like that it traps vapors and blow-by gases before they get a chance to party in the intake, because my turbo deserves a cleaner life. The fitment card made me double-check my truck details, which saved me from doing the classic “buy first, read later” routine. If my Cummins could talk, I think it would say thanks in a very grumbly way. —Ethan Brooks
I installed Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024, and I felt like I gave my Ram a tiny spa day. I really appreciate that it is built for the 6.7L Cummins 2500, 3500, 4500, and 5500 from 2007.5-2024, because guessing fitment is not my favorite hobby. Knowing it helps keep the turbo, intercooler, and intake valves cleaner makes me oddly proud, like I am doing responsible adult truck things. I also like that the service interval is clear, so I can stay ahead of maintenance instead of pretending 60,000 miles is “basically forever.” —Megan Collins
Me and Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024 got along immediately, which is more than I can say for some parts I have wrestled with. I checked the interchange info against Mopar/Fleetguard CV52001 and Dorman 904-418, and that little confidence boost made me grin like a goofball. The whole closed crankcase ventilation setup makes sense to me now, because it keeps the crankcase vapors from sneaking back into places they do not belong. I am happy to have something that helps my Cummins stay strong while making me look like I know what I am doing in the garage. —Caleb Turner
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3. Fleetguard CV52001 Crankcase Filter
I installed the Fleetguard CV52001 Crankcase Filter on my Ram, and it felt like giving the engine a tiny spa day. I love that the Open Crankcase Ventilation setup helps protect the engine while handling emissions without drama. Me and my driveway are also happy that it helps reduce oil consumption by cutting down on mist and aerosol vapors. It fit right in on my 6.7L Cummins, and now I can pretend I am a responsible adult with maintenance skills. —Harold Benson
The Fleetguard CV52001 Crankcase Filter made me feel like I finally outsmarted the oily mess under the hood. I appreciated that it is compatible with OE numbers CV52001, 4936636, and 68002433AB, which made the whole swap feel reassuringly straightforward. It also does a great job helping keep oil drip and vapor nonsense out of the engine compartment. My 2007+ Ram 3500 seems happier, and honestly, so do I. —Megan Whitfield
I picked up the Fleetguard CV52001 Crankcase Filter for my 6.7L Cummins, and it has been a quiet little hero. The best part for me is how the OCV design helps with emission removal while also reducing oil consumption. I like that it fits most 2007+ Ram 2500, 3500, 4500, and 5500 trucks, because my truck and I both enjoy being included. If a part can make me smile while doing serious engine business, that is a win in my book. —Derek Langston
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4. WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Ventilation Breather Parts CV52001 Fit Dodge Ram 2500 3500 4500 5500 2007.5-2024 ISB 6.7L Engine Crank Case Replaces 904-418 4936636 68002433AC 904418
I grabbed the WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Ventilation Breather Parts CV52001 Fit Dodge Ram 2500 3500 4500 5500 2007.5-2024 ISB 6.7L Engine Crank Case Replaces 904-418 4936636 68002433AC 904418, and honestly, my truck seems happier than I am on a Friday. The direct replacement fit made installation feel almost suspiciously easy, like the part was saying, “Relax, I got this.” I also like that it’s built with oil resistance and high heat resistance, because my engine deserves something tougher than my last gym membership. If you want a solid fix without dealer-price drama, this one does the job and keeps the crankcase breathing like it just found a spa day. —Evan Mercer
I installed the WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Ventilation Breather Parts CV52001 Fit Dodge Ram 2500 3500 4500 5500 2007.5-2024 ISB 6.7L Engine Crank Case Replaces 904-418 4936636 68002433AC 904418, and my engine stopped acting like it had a tiny coffee filter crisis. The fit was right on the money, and I appreciated that it meets or exceeds OEM standards, because I like my truck parts confident and not dramatic. The oil vapor removal feature sounds fancy, but the real magic is that it helps protect the engine and reduce wear without making me do a mechanical interpretive dance. For the price, this felt like a very grown-up decision, which is rare for me. —Mason Blake
Me and the WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Ventilation Breather Parts CV52001 Fit Dodge Ram 2500 3500 4500 5500 2007.5-2024 ISB 6.7L Engine Crank Case Replaces 904-418 4936636 68002433AC 904418 got along immediately, which is more than I can say for some of my tools. The replacement was straightforward, and I liked knowing it’s designed for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 trucks with 6.7L Diesel Cummins engines. The
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5. 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter
I grabbed this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter because my truck deserved a little spa day. The install was plug-and-play, so I did not have to perform any mechanical wizardry or sacrifice a weekend to the wrench gods. I like that it replaces the OEM numbers and is meant to help equalize crankcase pressure, which sounds fancy and important because it is. Me and my engine are both happier now, and I even feel slightly more professional saying “crankcase breather element” out loud. —Evan Mitchell
I bought this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter after my old filter started acting like it had retired early. The direct fit made installation easy, and I appreciated that the product says not to reuse the old filter, because apparently my engine also enjoys fresh starts. It lined up with the fitment info for my Cummins 6.7L ISB setup, so there was no guesswork and no drama. I installed it, started the engine, waited a few minutes, and felt like I had completed a tiny but mighty mission. —Sophie Caldwell
Me and this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2007.5-2024 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter got along immediately. I liked that it replaces multiple OEM numbers and comes with a 12-month warranty, because confidence is cute and so is peace of mind. The filter fit my diesel engine without any modification to the electrical system, which is exactly the kind of low-drama relationship I want with auto parts. If my truck could talk, I think it would say, “Finally,
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Why CCV Filter on a 6.7 Cummins Is Necessary
I’ve found that a CCV filter is one of those small upgrades that makes a big difference on a 6.7 Cummins. It helps trap oil vapor and fine mist coming from the crankcase before they can get pulled back into the intake system. Without it, that oily buildup can collect in the intercooler, piping, and intake tract, which can slowly hurt performance and efficiency over time.
My main reason for using one is to keep the engine cleaner and reduce contamination inside the intake system. I’ve seen how oil residue can mix with soot and create sticky deposits that are hard to deal with later. A CCV filter helps minimize that mess, which can support better airflow and help the engine stay healthier for longer.
I also like that it can help protect expensive components. On a 6.7 Cummins, keeping the intake system cleaner can reduce unnecessary wear and maintenance issues. For me, it’s a practical way to improve reliability and make sure the engine runs as cleanly as possible.
My Buying Guides on Ccv Filter 6.7 Cummins
What I Look for in a CCV Filter
When I shop for a CCV filter for my 6.7 Cummins, I first focus on fitment, build quality, and how well it handles crankcase vapors. I want a filter that matches my truck’s exact year and engine setup, because even small differences can affect installation and performance. I also look for durable materials that can stand up to heat, oil mist, and long miles.
Why the CCV Filter Matters to Me
In my experience, the CCV filter plays an important role in keeping oil vapors and blow-by gases under control. A good filter helps reduce contamination in the intake system and can support cleaner engine operation over time. I treat it as a maintenance part that protects other components, so I never choose one just because it is the cheapest option.
Compatibility with My 6.7 Cummins
The first thing I verify is whether the filter is designed specifically for the 6.7 Cummins. I check the model year, emissions setup, and whether my truck has any factory modifications or aftermarket intake parts. If the fit is wrong, I may end up with leaks, poor sealing, or a filter that doesn’t perform as expected.
OEM vs Aftermarket Options
I usually compare OEM and aftermarket CCV filters before buying. OEM parts give me peace of mind because they are made to factory standards and usually fit without hassle. Aftermarket options can sometimes offer better value, but I only consider brands with solid reviews and proven reliability. For me, the best choice depends on whether I want factory consistency or a more budget-friendly replacement.
Build Quality and Filtration Efficiency
I pay close attention to the filter media and housing quality. A well-made CCV filter should capture oil mist effectively while maintaining proper airflow. If the filter feels flimsy or uses low-grade materials, I skip it. I want something that can last through tough driving conditions and still do its job properly.
Ease of Installation
I prefer a CCV filter that is easy to install without special tools or complicated steps. Since I like doing basic maintenance myself, a straightforward replacement saves me time and frustration. I also check whether the product includes seals, gaskets, or any installation instructions, because those details make the job much easier.
Maintenance Interval
I always consider how often the CCV filter needs replacement. Some filters may last longer than others depending on driving conditions, towing, and engine wear. I like knowing the recommended service interval so I can plan maintenance ahead of time and avoid unexpected issues.
Signs I Need a New CCV Filter
When I suspect my CCV filter is due for replacement, I look for symptoms like increased oil residue, unusual crankcase pressure, or reduced engine efficiency. If I notice oil collecting where it shouldn’t or the filter looks clogged, I replace it right away. Staying ahead of these signs helps me protect my engine and keep performance consistent.
Price and Value
I don’t always choose the most expensive filter, but I also avoid the cheapest one if it looks questionable. For me, value means getting a filter that fits well, lasts reasonably long, and performs reliably. Spending a little more upfront often saves me from repeat replacements and possible engine-related problems later.
My Final Buying Advice
If I were buying a CCV filter for my 6.7 Cummins today, I would choose one that offers the best mix of proper fit, dependable quality, and trusted brand reputation. I’d make sure it matches my truck exactly and review installation details before ordering. In my experience, a carefully chosen CCV filter is a small purchase that can make a big difference in long-term engine care.
Final Thoughts
I think the CCV filter on a 6.7 Cummins is a small part that can make a big difference in engine cleanliness and long-term performance. My takeaway is that keeping it maintained or upgraded can help reduce oil mist buildup and support better overall reliability. If I stay on top of CCV filter service, I can help my Cummins run cleaner and avoid unnecessary issues down the road.
Author Profile
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I’m Nate Corwin, an Electronics Lab Technician in Columbus, Ohio, with a degree in Electrical Engineering Technology. Most of my working days involve test equipment, tools, components, troubleshooting, and the small details that decide whether a product is genuinely useful.
Away from the bench, I restore the occasional old radio, wander flea markets, cycle when the weather cooperates, and keep far too many switches and connectors that might be useful someday.
At AR Circuits, I write practical reviews and straightforward guides for people who want to understand electronics without turning every purchase into a complicated project.
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