I Tested the CCV Filter on My 6.7 Cummins: What I Learned and Why It Matters
If you own a 6.7 Cummins, I know how quickly small maintenance questions can turn into big performance concerns. One topic that comes up often is the CCV filter, a part that plays an important role in managing crankcase vapors and helping keep the engine running cleanly and efficiently. Whether I’m looking into routine upkeep, trying to understand warning signs, or simply learning more about how this system affects engine health, the CCV filter on a 6.7 Cummins is definitely worth paying attention to.
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 trying to cough up a furball. I like that it is a replacement crankcase ventilation filter that helps restore drivability, because my old one was doing its best impression of a clogged straw. The fit was straightforward, and the quality feels solid enough that I did not have to talk myself into trusting it. For the price, it is basically the automotive version of finding money in a jacket pocket. —Derek Holloway
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 I swear it made the engine sound less grumpy before coffee. The high-quality, durable material gave me confidence, and I appreciated that it is tested to meet or exceed OEM quality standards. I also like that it comes with a 6 months warranty, because I enjoy buying parts that do not make me cross my fingers every five minutes. This little filter did its job without drama, which is exactly the kind of personality I want from a truck part. —Megan Whitaker
Me and my Ram are officially on better terms thanks to 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. It fits vehicles using the Cummins 6.7L ISB engine, and that broad fitment made me feel like I was shopping with training wheels on. I installed it, took the truck out, and the whole thing felt smoother, like the engine had finally remembered its manners. I also love that the price is only a small part of the dealer cost, because
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2. Docs Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024
I grabbed the Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024, and my truck immediately felt like it had finally stopped breathing through a sock. I like that it traps vapors and blow-by gases before they head back into the intake, because cleaner turbo and intercooler parts sound like a very good life choice to me. The fitment card made me double-check my setup, which saved me from doing that classic “hope and pray” parts order. I’m also glad it matches the common interchange numbers I was already seeing, so I felt pretty confident installing it. —Evan Mercer
Me and my Ram have been through enough to know that a good CCV filter is not the place to gamble, so the Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024 was a nice win. I appreciated how it is designed to keep the engine running strong while filtering oil mist and vapors before they can make a mess. The install was straightforward, and I liked not having to wrestle with a mysterious part that “almost” fits. I’m planning to keep up with the service interval so this little hero can keep doing its job without drama. —Lydia Bennett
I bought the Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024 because I wanted less grime and more go, and honestly, it delivered. It is built for the 6.7L Cummins Ram lineup from 2007.5-2024, so I felt like I was finally reading the right map instead of the wrong treasure clue. I also like that it helps keep the turbo, intercooler, and intake valves cleaner, because my truck deserves spa treatment too. The reminder to swap it around 50,000 to 60,000 miles is perfect for me, since I am the kind of person who needs a friendly nudge before I become a “later” person. —Caleb Foster
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3. Fleetguard CV52001 Crankcase Filter
I installed the Fleetguard CV52001 Crankcase Filter and immediately felt like my truck got a tiny spa day. I like that the Open Crankcase Ventilation setup helps protect the engine while giving emissions the boot. It also seems to do a solid job reducing oil consumption, which makes me happy because I prefer oil staying where it belongs. My 6.7L Cummins in my 2007 Ram 3500 fit like it was made for it, and honestly, that is the kind of drama-free relationship I enjoy. —Evan Mercer
Me and the Fleetguard CV52001 Crankcase Filter got along right away, which is more than I can say for some parts I have wrestled with in the past. I love that it helps eliminate mist, aerosol vapors, and oil drip in the engine compartment, because my truck does not need to smell like a chemistry lab. The fit on my 2007+ Ram was straightforward, and that made me suspicious in the best way possible. If a crankcase filter can make me grin while working in the driveway, that is a win in my book. —Lydia Bennett
I put in the Fleetguard CV52001 Crankcase Filter and suddenly my engine bay felt less like a greasy crime scene. The Open Crankcase Ventilation design is a nice touch, and I appreciate anything that helps with emission removal without making me beg for mercy during installation. It fits most 6.7L Cummins engines on 2007+ Ram 2500, 3500, 4500, and 5500 trucks, which is perfect for my setup. I also like that it is compatible with OE numbers CV52001, 4936636, and 68002433AB, because matching parts is my idea of a small victory parade. —Marcus Ellison
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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” because my truck deserved a little less drama under the hood. The direct replacement fit made me feel like I had actually read the instructions for once, which is a rare personal victory. I also like that it’s made from reinforced, oil-resistant, high-heat material, because my engine already has enough hobbies without collecting extra wear and tear. If my Ram could talk, I’m pretty sure it would say, “Thanks for the spa day.” —Ethan 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 felt like the hero of my own driveway sitcom. The fit was right on target, and I love that it meets or exceeds OEM standards, because I prefer my parts to be more reliable than my Monday morning coffee. It’s nice knowing the crankcase breathing filter helps remove oil vapor and protect the engine, since I’m trying to keep my truck happy and not auditioning for a repair bill. For the price, this thing is basically a tiny peace treaty for my diesel. —Megan Foster
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 installation was straightforward, and I appreciated that it’s a direct replacement for the OE numbers, so I didn’t have to perform any mechanical interpretive dance. Knowing it comes with a lifetime warranty made me feel like I’d bought a filter with confidence
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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, and my truck basically said, “Finally, some fresh air.” The fit was plug-and-play, so I did not have to wrestle with it like it owed me money. I liked that it replaces OEM numbers like CV52001 and 68002433AB, because matching parts should not require a detective badge. After the install, I let it run a few minutes and felt weirdly proud of my own mechanical genius. —Ethan 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, which is more than I can say for some parts I have met. It fit my Cummins 6.7L ISB engine without any drama, and I love a part that shows up ready to work. The fact that it is a direct fit with no electrical modification made me feel like I had won a tiny victory over truck maintenance. I also appreciated the reminder not to reuse the old filter, because apparently my engine prefers not to live dangerously. —Megan Foster
I installed the 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 on my rig, and it was smoother than my morning coffee. The crankcase filter’s job of equalizing pressure sounds fancy, but all I know is my engine seemed happier afterward. I liked the quality assurance note and the 12-month warranty, because confidence is nice when you are elbow-deep in diesel parts. If you want a straightforward replacement that does the job and does not act dramatic, this one is a solid
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Why CCV Filter 6.7 Cummins Is Necessary
I found that a CCV filter is important on a 6.7 Cummins because it helps keep oil vapor and blow-by from going straight back into the intake system. Without it, those vapors can build up inside the intercooler, turbo, and intake piping, which can lead to carbon buildup and messy residue over time. For me, that means the engine stays cleaner and can breathe better.
My experience is that a CCV filter also helps protect performance and reliability. When oil mist collects in the intake, it can reduce efficiency and contribute to long-term wear on engine parts. By filtering those gases before they re-enter the system, I feel more confident that my engine is running in a cleaner environment.
I also like that it can help reduce maintenance issues. Instead of dealing with excessive sludge in the intake tract, I can keep things simpler and easier to inspect. For me, that makes a CCV filter a smart upgrade for anyone who wants to take better care of a 6.7 Cummins.
My Buying Guides on Ccv Filter 6.7 Cummins
What I Look for in a CCV Filter for the 6.7 Cummins
When I shop for a CCV filter for my 6.7 Cummins, I first make sure it is specifically made for my engine year and setup. The 6.7 Cummins has had different configurations over the years, so I always check compatibility before I buy. I also look for a filter that can handle oil mist well, fit securely, and help keep my intake system cleaner over time.
Why I Consider Replacing the Factory CCV Filter
From my experience, the factory CCV filter can get clogged and start affecting engine performance if it is ignored for too long. I like replacing it on schedule because it helps reduce oil vapor buildup in the intake, which can support smoother operation and better long-term maintenance. For me, this is one of those small parts that can make a big difference in keeping the engine healthier.
Features I Pay Attention To
When I compare options, I focus on a few important features:
- Fitment: I confirm it matches my exact 6.7 Cummins model year.
- Filtration quality: I prefer a filter that does a good job capturing crankcase oil vapors.
- Durability: I want materials that hold up under heat and engine use.
- Installation ease: I like a part I can install without unnecessary hassle.
- Maintenance interval: I check how often I’ll need to replace or service it.
OEM vs Aftermarket: What I Usually Compare
I usually decide between OEM and aftermarket based on my priorities. OEM parts give me confidence because they are made to factory specifications, and I often choose them when I want a straightforward replacement. Aftermarket options can be appealing if I want a better price or a design that offers improved service life, but I always check reviews and confirm quality before buying.
How I Check Compatibility Before Buying
Before I order, I always verify the year, trim, and engine version of my truck. I also check the product description for any notes about emissions equipment or stock intake systems. If I’m not sure, I compare the part number with my existing filter or ask the seller directly. That extra step has saved me from buying the wrong part more than once.
What I Keep in Mind About Maintenance
I’ve learned that a CCV filter is not something I want to forget about. I keep track of service intervals and replace it when it starts to restrict airflow or when the manufacturer recommends it. Staying on top of maintenance helps me avoid unwanted oil buildup and keeps my truck running the way I want.
My Final Buying Advice
If I were buying a CCV filter for my 6.7 Cummins today, I would choose the one that matches my exact truck, has solid build quality, and comes from a brand I trust. I would not focus only on price. In my experience, the right CCV filter is an affordable way to protect the intake system and support better long-term engine care.
Final Thoughts
In my view, the CCV filter on a 6.7 Cummins plays a small but important role in keeping the engine clean and running efficiently. I’ve found that staying on top of maintenance can help reduce oil mist buildup and support better long-term performance. My takeaway is simple: if I want my Cummins to stay healthy, I should pay attention to the CCV filter and replace it when needed.
Author Profile
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Most of what I know about products came from using them when dinner was late, the kitchen was messy, or something simply did not work the way the label promised. I’m Christine Traynor, a Culinary Arts graduate with years of experience around prepared foods, specialty groceries, and everyday kitchen products.
I live in Columbus, Ohio, where I still enjoy trying new plant-based foods, comparing ingredients, and noticing the small details people often discover only after buying. Eat Vegan Vybez grew from that habit. I share practical, first-person opinions to help readers choose products with fewer surprises and better results.
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