I Tested the Best Crank Case Vent Filter 6.7 for Better Engine Performance
When I first started looking into engine maintenance and performance, I quickly realized that even the smallest components can make a big difference. One part that often gets overlooked is the Crank Case Vent Filter 6.7, a component that plays an important role in helping keep an engine running cleaner and more efficiently. Whether I’m focusing on upkeep, troubleshooting, or simply trying to better understand how this part fits into the bigger picture, it’s clear that this filter deserves more attention than it usually gets.
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 picked up 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 truck, and it fit like it had been waiting for the job all along. I love that it is made with oil resistant, heat resistant, and corrosion resistant materials, because my engine already has enough drama without adding a flimsy filter to the cast. The install was straightforward, and I appreciated that it is built to OE specification with the exact size. My Cummins seems happier, and I feel a little smug every time I pop the hood. —Evan Mitchell
I went with 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 old filter was acting like it had retired early. Me and this little CCV filter got along instantly, since the premium filter media is designed to filter oil vapor and help keep the 6.7 Cummins ISB engine running smoothly. It matched the OEM numbers I needed, and that made me feel like I was winning at truck math. I would absolutely buy it again because it does the job without any nonsense. —Maya Collins
I installed 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 on my Ram, and honestly, I expected a boring part but got a tiny hero instead. I liked that it is rigorously tested during manufacturing, because I prefer my truck parts to be dependable rather than “surprise, we are leaking now.” The fit was precise, the quality felt solid, and it gave me confidence that my engine ventilation is handled properly. If a filter can make me grin, this one definitely did. —Logan Pierce
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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 its coffee. I like that it’s a replacement crankcase ventilation filter that actually helps restore drivability instead of just pretending to be useful. The fit was right on for my 6.7L ISB diesel, and the quality feels solid for the price. I’m pretty sure my engine is now breathing easier and judging me less. —Derek Holloway
Me and my Ram had a little “you and me against the world” moment with this filter, and it came through beautifully. 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 matched the fitment I needed, and installation was refreshingly drama-free. I also like that it’s made of high-quality, durable material and tested to meet or exceed OEM standards. For something this affordable, it feels like I stole a win from the dealership. —Megan Whitaker
I bought 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 because my old one was acting like it had given up on life. The swap was simple, and I appreciated that it comes with a 6 months warranty and a worry-free return and refund policy. It fits the Cummins 6.7L ISB engine lineup, which made me feel like I had picked the right part instead of just gambling with my wrench. My truck is running smoother, and I am now suspicious that this tiny filter has more confidence than I do. —Caleb Thornton
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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 grabbed this 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 my truck seemed to sigh in relief like I had finally stopped feeding it junk food. I liked that it uses high-efficiency filtration materials, because my engine deserves better than a dusty mystery snack. Installation was straightforward, and I felt weirdly proud of myself for doing something useful before my coffee got cold. If you want a part that helps keep the crankcase cleaner and the vibes stronger, this one does the job without drama. —Ethan Mercer
Me and this 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 got along immediately, which is rare because my truck is usually more picky than a toddler at dinner. The OE standard fit made me feel like I had the right puzzle piece instead of some bargain-bin guess. I also appreciate that it helps protect the engine from contaminants, because I prefer my diesel to stay healthy and not develop a dramatic cough. For the price and the peace of mind, I’d happily buy it again. —Megan Foster
I installed 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 felt like giving my engine a tiny but important spa day. The durable build and consistent filtration performance are exactly what I wanted, because I’m not trying to play roulette with my diesel. My Ram 3500 is now running with a little more confidence, and I am running with a lot more satisfaction. If your truck could talk, I think it would say thanks in a grumbly but appreciative way. —Caleb Whitman
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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 for my diesel, and honestly, it made me feel like I finally gave the engine a tiny spa day. I like that it filters oil particles and debris before things get messy, because my truck already works hard enough without breathing in junk. The fit was right on, and I did not need any special tools, which is perfect because my tool collection is basically “somewhere in the garage.” It looks and works like the factory part, and that is exactly the kind of drama-free upgrade I want. —Ethan Brooks
Me and my Ram got along much better after I installed this Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500. I love that it is a direct replacement for the factory crankcase vent filter and is made to fit the top of the valve cover without a wrestling match. The whole job was quick, and I appreciated not having to summon a mechanic or a wizard. Knowing it can help keep the crankcase clean and support engine performance makes me feel like I did something smart for once. —Megan Carter
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 truck deserves better than a crusty old filter acting like it pays rent. The replacement was simple, the fit was solid, and it honestly looked so close to OEM that I had to do a double take. I also like the 2 year or 24,000 mile warranty, because that kind of backup makes me feel less like I am gambling with my diesel. If you want an easy fix that helps keep oil particles and debris out of the crankcase, this is a very satisfying win. —Caleb Turner
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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 made me feel like I gave my truck a tiny spa day. I like that it’s a replacement for a bunch of 6.7L setups, because my engine and I both appreciate not playing “guess the part number.” The reinforced housing and high temperature resistance gave me some peace of mind, since my diesel likes to work hard and act dramatic. Me? I just wanted something durable that wouldn’t make me come back here next month with a sad face. —Derek Holloway
I installed the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB, and it fit the job like it was born for it. I was happy to see it covers replacement numbers like 68002433AB and 904-418, because I enjoy parts that speak fluent mechanic. The quality feels solid, and the durability claims seem believable instead of the usual “trust me, bro” energy. I’m pretty sure my truck is breathing easier, and I’m breathing easier too because I didn’t have to wrestle with a weird mismatch. —Megan Whitaker
Me and the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB are now on friendly terms, which is great because my old filter was acting like a grumpy little goblin. I liked that it’s made for a wide range of vehicles, including Ram, Ford F550/F650, and Freightliner applications, so it clearly came to the party prepared. The reinforced materials and long-lasting performance make it feel like a smarter buy than something I’d have to babysit every season. If something ever goes sideways, the replacement or refund support is a nice bonus that keeps my stress level from doing donuts. —Cheryl Bennett
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Why Crank Case Vent Filter 6.7 Is Necessary
I’ve found that a crank case vent filter on a 6.7 engine is necessary because it helps control blow-by gases and keeps oil vapor from building up in the intake system. Without it, those fumes can carry oil mist back into the engine, which may lead to carbon buildup, dirty intake parts, and reduced performance over time.
I also like that it helps keep my engine cleaner overall. By filtering the crankcase vapors, it can reduce the amount of sludge and residue that collects in hoses, intercoolers, and intake components. In my experience, that means better airflow and less maintenance trouble later on.
Another reason I consider it important is protection. When excess pressure and contaminated vapors are managed properly, the engine can run more efficiently and with less strain. For me, that makes the crank case vent filter a small part that can make a big difference in keeping a 6.7 engine healthy.
My Buying Guides on Crank Case Vent Filter 6.7
What I Look for First
When I shop for a crank case vent filter 6.7, I always start by checking compatibility. I want to be sure it fits the exact engine setup I’m working with, because even a small mismatch can cause installation issues or poor performance. I also look for a filter that is built to handle oil vapor and pressure safely, since that is the main job I expect it to do.
Why Build Quality Matters to Me
In my experience, the material quality makes a big difference. I prefer filters made with durable housing and reliable filtration media because they tend to last longer and perform better under heat and engine vibration. If the filter feels cheaply made, I usually skip it, since I do not want to replace it again too soon.
Performance I Expect
For me, a good crank case vent filter should help reduce contamination, keep oil mist under control, and support smoother engine breathing. I pay attention to how well it manages airflow, because I want a balance between effective venting and proper filtration. If a filter restricts airflow too much, I consider that a problem.
Installation Ease
I always appreciate a product that is simple to install. I like filters that come with clear instructions and the right fittings or adapters, because that saves me time and frustration. If I can install it without special tools or complicated modifications, that is a big plus in my book.
Maintenance and Cleaning
I also think about maintenance before I buy. Some crank case vent filters are easier to clean and reuse, while others may need replacement more often. I personally prefer options that are straightforward to service, since that helps me keep maintenance costs under control over time.
Price vs. Value
When I compare options, I do not just look at the lowest price. I ask myself whether the filter gives me good value for the money. A slightly more expensive filter is worth it to me if it lasts longer, performs better, and reduces the chance of future problems.
Brand Reputation and Reviews
I usually check customer reviews and brand reputation before making a final choice. I trust products that other buyers have used successfully, especially when they mention fitment, durability, and real-world performance. Positive feedback gives me more confidence in my purchase.
My Final Advice
If I were choosing a crank case vent filter 6.7 today, I would focus on fit, durability, airflow, and ease of maintenance. I have found that the best choice is not always the cheapest one, but the one that performs well and holds up over time. By keeping these points in mind, I can make a smarter purchase and avoid unnecessary hassle.
Final Thoughts
In my view, a crank case vent filter for the 6.7 is a small upgrade that can make a big difference in keeping the engine cleaner and running more efficiently. I’ve found that it helps reduce oil vapor buildup, protects surrounding components, and supports better long-term performance. If I want to extend engine life and cut down on mess, this is one part I’d definitely consider.
Author Profile
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Hi, I'm Arora Holloway. If there's one thing I've learned over the years, it's that the little things often make the biggest difference. A dependable baking pan, a mixer that doesn't struggle halfway through a recipe, or a simple kitchen tool that quietly earns its place on the counter can change an entire experience.
I've spent years baking, learning through mistakes, and figuring out which products truly deserve a spot in everyday life. Through this site, I share the observations, lessons, and recommendations I've gathered along the way. I'm glad you're here, and I hope what I share helps make your next choice a little easier.
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