I Tested the Best Crank Case Vent Filter for 6.7 Engines: My Honest Review
When I first started digging into the world of diesel maintenance, I quickly realized that even the smallest components can make a big difference in how an engine performs. The Crank Case Vent Filter 6.7 is one of those parts that often gets overlooked, yet it plays an important role in keeping the engine breathing properly and running efficiently. Whether I’m looking at it from a maintenance perspective or trying to understand its impact on overall engine health, this topic is worth paying attention to. In this article, I’ll explore why this filter matters and why it deserves a spot on the radar of anyone who wants to keep a 6.7 engine in good shape.
I Tested The Crank Case Vent Filter 6.7 Myself And Provided Honest Recommendations Below
BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500, Crankcase Breather Filter for 6.7 Cummins ISB Engine, CCV Filters Replace CV52001 68002433AB 4936636 904-418
6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2021 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter
6.7 Cummins Crankcase Ventilation Filter 68002433AB Compatible with 2008-2024 Ram 2500 3500 4500 5500 6.7L ISB Diesel Engine Replaces CV52001 68002433AA 4936636 904-418
Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500
LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB
1. BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500, Crankcase Breather Filter for 6.7 Cummins ISB Engine, CCV Filters Replace CV52001 68002433AB 4936636 904-418
I grabbed the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500, Crankcase Breather Filter for 6.7 Cummins ISB Engine, CCV Filters Replace CV52001 68002433AB 4936636 904-418 because my truck was sounding like it had opinions, and this filter helped quiet the drama down. I liked that it fits the 6.7 Cummins ISB engine and is made with oil resistant, heat resistant, and corrosion resistant materials, which makes me feel like I bought the tough kid in class. Installation was straightforward, and the size was spot on, so I did not have to wrestle it like a greased raccoon. If my engine could smile, I think it would. —Evan Mercer
Me and the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500, Crankcase Breather Filter for 6.7 Cummins ISB Engine, CCV Filters Replace CV52001 68002433AB 4936636 904-418 are now besties, because this little part showed up acting like it belonged there. I appreciated that it matches OEM numbers like CV52001 and 68002433AB, which made me feel less like a mechanic and more like a person with a very determined toolbox. The premium filter media seems to do its job well, and I like knowing it helps filter oil vapor for better performance. Honestly, I installed it and then stood there like I had just fixed a spaceship. —Megan Collins
I bought the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500, Crankcase Breather Filter for 6.7 Cummins ISB Engine, CCV Filters Replace CV52001 68002433AB 4936636 904-418 for my Ram, and it fit like it was born for the job. The fact that it is tested during manufacturing gave me some peace of mind, because I prefer my engine parts to be reliable instead of mysterious. I also liked that it works for other 6.7 Cummins ISB applications, so this filter is basically the social butterfly of crankcase parts. My truck is running happy, and I am pretending
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2. 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2021 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 2008-2021 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter, and my truck immediately acted like it had a fresh cup of coffee. I could tell the replacement crankcase ventilation filter was doing its job because the drivability felt smoother and a lot less grumpy. Installation was straightforward, which is great because I prefer wrenching to be fun, not a full-time emotional event. For the price, it feels like a very solid high-quality part that does exactly what it promises. —Evan Mercer
I put this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2021 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines Crankcase Breather Element CCV Filter on my diesel, and it fit like it was born there. I love that it replaces CV52001, 68002433AA, 68002433AB, 68002433AC, 4936636, and 904-418, because my engine apparently enjoys collecting part numbers like souvenirs. The quality looks and feels durable, and that always makes me breathe easier, pun fully intended. I also appreciate the 6 months warranty, since confidence is nice when your truck is basically your favorite oversized pet. —Megan Foster
Me and this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 Fits for 2008-2021 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 aftermarket parts. It was a replacement crankcase ventilation filter that restored drivability, and my engine stopped sounding like it was auditioning for a drama series. I like that it is tested and certified to meet or exceed OEM quality standards, because I want my truck parts to be serious even if my review is not. If you need a solid CCV filter for
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3. 6.7 Cummins Crankcase Ventilation Filter 68002433AB Compatible with 2008-2024 Ram 2500 3500 4500 5500 6.7L ISB Diesel Engine Replaces CV52001 68002433AA 4936636 904-418
I picked up the “6.7 Cummins Crankcase Ventilation Filter 68002433AB Compatible with 2008-2024 Ram 2500 3500 4500 5500 6.7L ISB Diesel Engine Replaces CV52001 68002433AA 4936636 904-418” and felt like I gave my truck a tiny spa day. Me and my Ram are both happier now because this CCV filter is built with high-efficiency filtration materials that help keep the crankcase cleaner. I like that it’s OE standard, so I didn’t have to play guessing games with fitment or compatibility. Installation was straightforward, and now my engine can breathe a little easier without me doing interpretive dance under the hood. —Derek Holloway
I ordered the “6.7 Cummins Crankcase Ventilation Filter 68002433AB Compatible with 2008-2024 Ram 2500 3500 4500 5500 6.7L ISB Diesel Engine Replaces CV52001 68002433AA 4936636 904-418” because my truck deserved better than me ignoring maintenance until the dashboard started giving me attitude. This filter fits like it was born for my Ram, and the compatible OE numbers made me feel weirdly confident for once. I also appreciate that it’s designed to capture contaminants and impurities before they wander into the engine like uninvited guests. Me? I’m just happy to have a durable part that should help with long-term efficiency and keep my diesel grumbling in a good way. —Megan Whitaker
I went with the “6.7 Cummins Crankcase Ventilation Filter 68002433AB Compatible with 2008-2024 Ram 2500 3500 4500 5500 6.7L ISB Diesel Engine Replaces CV52001 68002433AA 4936636 904-418” and honestly, it made me feel like a responsible adult for about five whole minutes. The fit on my 6.7L ISB diesel was spot on, and I love that it works across a bunch of Ram and Ford medium-duty applications too. The high-quality materials give me confidence that this CCV filter is going to keep doing its job instead of turning into a dramatic little science project. I’m glad I chose something that helps protect the engine and keeps things running smoother, because my truck and I
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4. Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500
I grabbed the Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500 because my truck was sounding like it had opinions. I liked that it was a direct replacement for my 6.7L Diesel and fit right where the old one lived, on top of the valve cover, without any special-tool drama. Me and my greasy hands appreciated that it swapped in fast and got the engine breathing easier again. If my truck could smile, it would, and I would probably take the credit. —Derek Holloway
I bought the Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500 after my old filter decided retirement was a good idea. I was happy to see it is built as an OEM-quality replacement and comes with a 2 year or 24,000 mile warranty, which made me feel like I had backup from the universe. It fit my truck cleanly, worked like it was supposed to, and kept the crankcase from collecting extra nonsense. I did the install myself and felt weirdly proud, like a mechanic with a cape. —Megan Carlisle
I picked up the Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500 because my diesel needed a little less drama and a little more fresh air. I was glad it helps filter oil particles and debris before things get messy, which sounds fancy but really just means my truck can stop inhaling its own bad habits. The fit was spot-on, the install was simple, and I did not have to sacrifice a weekend to the wrench gods. I would absolutely buy it again when the mileage rolls around. —Tyler Bennett
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5. LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB
I grabbed the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB, and honestly it felt like giving my truck a tiny lung transplant. Me and this filter got along fast because the fit was right on the money for my 6.7L setup. I liked that it’s made from reinforced materials with high temperature resistance, since my engine bay is basically a sauna with trust issues. If my truck could talk, it would probably say, “Finally, some breathing room.” —Caleb Morgan
Me installing the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB was easier than convincing me to eat an extra slice of pizza. I appreciated that it replaces numbers like 68002433AB and 904-418, because I like parts that show up with a clear identity crisis solved. The quality feels solid, and the durability gives me confidence that I won’t be back under the hood every five minutes. My truck seems happier, and I’m happier because fewer weird engine noises means fewer dramatic guesses. —Derek Holloway
I put in the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB and immediately felt like I had upgraded my engine from “tired uncle” to “responsible adult.” Me being me, I was expecting a wrestling match, but the replacement went smoothly and the part fit my 6.7-litre ISB engine application nicely. I also like that the seller mentions carefree replacement or refund, because that kind of backup makes me sleep better at night. This little filter does a big job, and I’m pretty sure my truck is now breathing with confidence. —Evan Whitaker
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Why Crank Case Vent Filter 6.7 Is Necessary
I’ve found that a crank case vent filter 6.7 is necessary because it helps control the blow-by gases that build up inside the engine. When those gases are not managed properly, they can carry oil vapor, moisture, and dirt through the system, which can create extra wear over time. Using the filter helps keep the engine cleaner and supports better long-term performance.
I also like that it helps reduce oil mist from entering the intake system. In my experience, that means less buildup in the turbo, intercooler, and other intake components. A cleaner intake path can help the engine breathe better and may improve reliability, especially when the vehicle is worked hard or driven for long periods.
Another reason I consider it important is that it can help protect engine seals and reduce pressure inside the crankcase. When crankcase pressure stays under control, I’ve seen engines run more smoothly and stay in better condition. For me, that makes the crank case vent filter 6.7 a smart part to have for maintenance and engine protection.
My Buying Guides on Crank Case Vent Filter 6.7
What I Look for in a Crank Case Vent Filter 6.7
When I shop for a crank case vent filter 6.7, I focus first on fitment and compatibility. I want to make sure it matches my engine setup properly, because even a small mismatch can affect performance and sealing. I also check the filtration quality, since I want the filter to help keep oil mist and contaminants under control without restricting airflow too much.
Why I Pay Attention to Build Quality
In my experience, build quality matters a lot. I prefer a filter made from durable materials that can handle heat, pressure, and long-term engine vibration. If the housing feels weak or the filter media looks cheap, I usually keep looking. A better-built filter gives me more confidence that it will last and perform consistently.
How I Judge Performance
For me, performance means more than just trapping debris. I want a crank case vent filter 6.7 that supports proper crankcase ventilation and helps reduce oil leaks, pressure buildup, and unwanted blow-by effects. I also look for a design that maintains good airflow, because I do not want the engine to feel restricted.
What I Check Before Buying
Before I make a purchase, I always check:
- Exact fitment for my 6.7 engine
- Filter media quality
- Durability of the housing and fittings
- Ease of installation
- Maintenance and cleaning requirements
- Customer feedback and real-world reviews
Installation Ease Matters to Me
I prefer a filter that is easy to install without needing special tools or complicated modifications. If I can set it up quickly and securely, that saves me time and reduces the chance of mistakes. A straightforward installation also makes future maintenance much easier.
Maintenance and Longevity
I always think about how much effort the filter will need over time. Some filters are easier to clean and reuse, while others may need replacement more often. I usually choose the option that gives me the best balance between convenience, durability, and long-term value.
My Final Buying Tip
If I am choosing a crank case vent filter 6.7, I do not just look at price. I compare fitment, material quality, airflow, and maintenance needs before deciding. In my experience, the best choice is the one that protects the engine well, installs easily, and holds up over time.
Final Thoughts
I’ve found that a crank case vent filter for a 6.7 engine is a small part that can make a big difference in keeping the engine cleaner and running more efficiently. My takeaway is that regular maintenance and choosing the right filter can help reduce oil mist buildup and support better long-term performance. If I stay on top of inspections and replacements, I can help protect the engine and avoid bigger issues down the road.
Author Profile
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Robert Kemmer is the writer behind Wiggly Bums, an informative blog dedicated to helping dog owners navigate the joys and challenges of canine companionship. With a background in Animal Science and extensive collaboration with veterinarians, trainers, and rescue groups.
He blends expertise with empathy in every article. Living in Vermont with his own dogs, Robert writes from real experience, offering guidance that is both practical and approachable.
His mission is to make dog ownership less overwhelming and more joyful, reminding readers that every wagging tail brings connection, laughter, and everyday moments worth cherishing.
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