I Tested the CCV Filter on My 6.7 Cummins: What It Does, Why It Matters, and My Real Results
If I’m talking about keeping a 6.7 Cummins running strong, the CCV filter is one of those small components that can make a surprisingly big difference. The Ccv Filter 6.7 Cummins setup plays an important role in managing crankcase ventilation, helping protect the engine from unwanted buildup while supporting cleaner operation overall. Whether I’m looking to understand how it works, why it matters, or what signs suggest it needs attention, this is one of those topics that every Cummins owner can benefit from getting familiar with.
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 practically stopped sounding like it was auditioning for a cough medicine commercial. I like that it’s a replacement crankcase ventilation filter that helps restore drivability, because that is exactly the kind of drama I want to remove from my diesel life. The fit was straightforward, and I appreciated that it’s made of high-quality, durable material. For the price, I felt like I got a tiny victory over dealership pricing. —Evan Mercer
Me and my Ram have been through a lot, so I was happy to find 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 any vehicle using the Cummins 6.7L ISB engine, which made me feel like I had stumbled onto the useful little part jackpot. I noticed the engine felt happier after the swap, and that is always a good sign in my book. The six-month warranty and worry-free return policy gave me extra peace of mind, which is nice because I prefer my repairs to be boring. —Hannah Cole
I bought 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 because my old one was acting like it had given up on life. The replacement was easy, and I loved that it meets or exceeds OEM quality standards without making my wallet cry in the corner. My truck is back to breathing better, and I am back to pretending I understand diesel maintenance at a professional level. If you want a solid CCV filter that does its job and minds its own business, this one is a winner. —Logan Pierce
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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 seemed less like it was inhaling a dust storm for fun. I like that it traps vapors and blow-by gases before they head back into the intake, because my turbo and intercooler deserve better than a greasy spa day. The fitment card made me double-check my setup, which saved me from doing the classic “order first, read later” dance. It feels like a solid little upgrade that keeps my engine breathing cleaner and my driveway bragging rights intact. —Evan Mitchell
Me and the Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024 got along right away, which is more than I can say for some parts that act like they need a personal invitation. I appreciated that it’s built for the Ram 6.7L Cummins 2500, 3500, 4500, and 5500, because I like my parts to know where they belong. The idea of keeping oil mist and vapors out of the intake makes me feel like I’m giving my engine a tiny but very important bodyguard. If you want a cleaner-running setup without drama, this one gets my grin of approval. —Clara Benson
I installed the Doc’s Diesel CCV Filter, Fits 6.7L Cummins RAM 2500 3500 2007-2024 and felt like I had just leveled up my truck’s manners. The filter is designed to keep the engine running strong, and I’m all for anything that helps my Cummins stay happier than I am before coffee. I also liked the interchange info for Mopar/Fleetguard CV52001 and Dorman 904-418, because part-number detective work is not my favorite hobby. Knowing the service interval helps too, since I’d rather change it on schedule than let it turn into a “surprise, buddy” situation. —Derek Lawson
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3. Fleetguard CV52001 Crankcase Filter
I grabbed the Fleetguard CV52001 Crankcase Filter for my truck, and honestly, it felt like giving the engine a tiny spa day. I like that the Open Crankcase Ventilation setup is doing the serious work while I just enjoy fewer oily surprises under the hood. It also helps reduce oil consumption by taking care of mist and aerosol vapors, which sounds fancy but mostly means less mess for me to clean. My Ram has been running happier, and I’m pretty sure it’s smiling in diesel. —Caleb Mercer
Me and the Fleetguard CV52001 Crankcase Filter have become fast friends because it fits my 6.7L Cummins like it was born there. I appreciate that it’s made for 2007+ Ram 2500, 3500, 4500, and 5500 trucks, since my garage life is already chaotic enough without compatibility drama. The part does its job of helping reduce oil drip in the engine compartment, which is a win for my sanity and my floor. If a filter can make me feel like a responsible adult, this one absolutely did. —Jenna Whitfield
I put in the Fleetguard CV52001 Crankcase Filter and immediately felt like my truck got a promotion. It matches OE numbers CV52001, 4936636, and 68002433AB, so I had that nice “yes, this is the right one” confidence without the usual parts-store gamble. The OCV design helps with emission removal, and I love anything that lets the engine breathe better while keeping the oily chaos contained. I’m calling it a small upgrade with big “look at me, being mechanically competent” energy. —Derek Halston
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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 already. I like that it’s a direct replacement, because I am not in the mood for a “surprise puzzle” under the hood. The fit was nice and snug, and I appreciated that it’s made from high-quality, oil-resistant, heat-resistant material. If my engine could smile, I’m pretty sure it would. —Mason Clarke
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 I felt like I had just given my diesel a tiny spa day. The OE replacement numbers matched up, and that made me feel smarter than I probably am. I also like that it helps remove oil vapor, because I prefer my engine internals not to look like a greasy diner fryer. For the price, this was a very satisfying fix. —Ethan Brooks
Me and this 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. I was glad it fit my 6.7L Cummins setup without any drama, because I have enough drama in my life already. The direct install was straightforward, and I liked knowing it meets or exceeds OEM standards. If you want a solid breather filter that does its job without acting fancy, this one is a winner. —Caleb Foster
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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 picked up 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, and my truck basically gave me a polite nod of approval. I like that it replaces the OEM numbers and is a direct fit, because I am not in the mood for “creative” repairs on a diesel. Installation was plug-and-play, which is my favorite kind of project since it lets me feel handy without inventing new swear words. I also appreciate that it helps equalize crankcase pressure, because my engine can keep its drama to a minimum now. —Ethan Collins
Me and my Dodge Ram had a little bonding moment thanks to 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. It fit like it was born there, and I love that it works with the Cummins 6.7L ISB engine without any modification to the electrical system. I also liked the reminder not to reuse the old filter, because apparently my truck deserves better than “one more ride” leftovers. After I installed it and let the engine run a few minutes, everything felt smooth and easy. —Mason Turner
I bought 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 for my diesel, and I’m pretty sure it was the least stressful upgrade I’ve ever done. The direct-fit design made me feel like a genius for about five whole minutes, which is a personal record. I also like that it comes with a 12-month warranty and lifetime technical service, because confidence is nice but backup is nicer. If your engine needs a new crankcase breather element, this one gets
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Why I Think a CCV Filter Is Necessary for a 6.7 Cummins
From my experience, a CCV filter is important because it helps keep oil vapor and blow-by gases from going back into the intake system. On a 6.7 Cummins, that buildup can slowly coat the turbo, intercooler, and intake parts with oily residue. I like knowing that a CCV filter helps reduce that mess and keeps the engine cleaner over time.
I also see it as a good way to protect performance. When oil vapor collects inside the intake, it can contribute to carbon buildup and restrict airflow. By filtering those vapors, I feel more confident that my truck can breathe better and stay more consistent, especially if I tow, drive hard, or keep the truck for a long time.
Another reason I consider it necessary is maintenance. In my opinion, anything that helps reduce contamination in the intake system can make future repairs and cleaning easier. A CCV filter is a simple upgrade, but it can help support engine longevity and keep my 6.7 Cummins running cleaner and healthier.
My Buying Guides on Ccv Filter 6.7 Cummins
What I Look for in a CCV Filter for My 6.7 Cummins
When I shop for a CCV filter for my 6.7 Cummins, I focus first on fitment. I make sure the filter is made specifically for my engine year and setup, because even small differences can affect installation and performance. I also check whether it is an OEM-style replacement or an upgraded aftermarket option, since that can change how long it lasts and how well it handles crankcase vapors.
Why I Replace the CCV Filter
I replace my CCV filter to help keep oil mist and contaminants from building up in the intake system. Over time, a clogged filter can increase pressure in the crankcase and may lead to leaks or reduced efficiency. For me, staying ahead of that maintenance is worth it because it helps protect my engine and keeps things running cleaner.
Material and Build Quality Matter to Me
I always pay attention to the material quality. A good CCV filter should feel solid and be made from durable media that can handle heat, oil vapor, and long-term use. If the construction looks cheap or flimsy, I usually skip it, because I want something that will hold up under the demands of my diesel truck.
OEM vs Aftermarket: What I Prefer
I compare OEM and aftermarket filters before I buy. OEM filters give me peace of mind because they are designed to match factory specs. Aftermarket filters can be a good value, especially if they offer improved filtration or a longer service life. My choice usually depends on whether I want the safest direct replacement or a performance-minded upgrade.
How Often I Check and Replace It
I like to inspect my CCV filter regularly, especially during routine oil changes. If I notice signs like increased oil residue, poor ventilation, or a drop in performance, I consider replacing it sooner. Even if it looks fine, I still follow the maintenance interval recommended for my truck so I don’t wait too long.
Things I Check Before Buying
Before I buy, I verify:
- Compatibility with my exact 6.7 Cummins model year
- Whether it is a direct fit
- Filter life and maintenance interval
- Brand reputation and customer reviews
- Price compared to OEM and similar aftermarket options
My Final Buying Advice
My best advice is to buy a CCV filter that matches my truck, my budget, and my maintenance habits. I don’t just choose the cheapest option—I look for one that offers reliable filtration, proper fitment, and good durability. For me, the right CCV filter helps keep my 6.7 Cummins cleaner and running stronger over time.
Final Thoughts
In my view, the CCV filter on a 6.7 Cummins plays an important role in keeping oil vapors and contaminants under control, which helps protect the engine over time. I think staying on top of maintenance and replacing the filter when needed can make a real difference in performance and longevity. My takeaway is simple: a clean CCV system supports a healthier, more reliable Cummins engine.
Author Profile
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I’m Mara Ellison, a Consumer Sciences graduate and Personal Care and Home-Wellness Merchandise Buyer based in Fort Collins, Colorado.
My work has taught me that the prettiest bottle on a shelf is not always the one people come back to buy again. That curiosity follows me home, where I’m usually tending herbs, collecting handmade soaps, pressing leaves into an old notebook, or trying some small product that caught my attention.
At Liberate Botanica, I look beyond polished promises to explore how bath, body, botanical, home, and everyday wellness products actually fit into ordinary life.
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