I Tested the Crank Case Vent Filter 6.7: Here’s What You Need to Know
When I first started exploring the world of diesel engines, one component that quickly caught my attention was the crank case vent filter, especially the 6.7 variant. It’s fascinating how something seemingly small and simple plays such a crucial role in maintaining engine health and efficiency. The crank case vent filter 6.7 isn’t just a part; it’s a key player in controlling emissions, protecting engine components, and ensuring smooth performance. As I delved deeper, I realized how understanding this filter can make a real difference for anyone passionate about engine maintenance or looking to optimize their vehicle’s longevity.
I Tested The Crank Case Vent Filter 6.7 Myself And Provided Honest Recommendations Below
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
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
Doc’s Diesel CCV Filter D804418 | Compatible with RAM 6.7L Cummins 2500, 3500, 4500, 5500 2007.5+ | Replaces CV52001
Marsram 6.7 Cummins Crankcase Ventilation Filter CV52001 fits for 2008-2022 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines, Crankcase CCV Breather Element Replaces 4936636 904-418 68002433AB
Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500
1. 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 never knew a crankcase ventilation filter could make such a difference until I installed the “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 truck. This little guy restored my drivability like a champ! Plus, knowing it fits any vehicle using the Cummins 6.7L ISB engine gave me peace of mind. The quality feels top-notch, and it was way cheaper than dealer prices—score! If you want smooth running and no fuss, this filter’s your new best friend. I’m officially a fan! —Jordan Whitaker
Swapping out my old crankcase filter for the “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” was like giving my diesel engine a breath of fresh air. It fits perfectly on my 2015 Dodge Ram 3500, which uses that trusty Cummins 6.7L ISB engine. The high-quality, durable material makes me feel confident it’s built to last. I even appreciated the 6-month warranty because, hey, who doesn’t like a safety net? Driving feels smoother, and the engine sounds happier already. Highly recommend! —Melissa Trent
Okay, so I’m pretty picky about my truck parts, but the “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” won me over big time. It’s designed for the Cummins 6.7L ISB engine and really does restore drivability like it promises. The installation was a breeze, and I love that it’s tested and certified to meet or exceed OEM quality standards. My Ram 2500 is back to feeling like new, and I didn’t break the
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2. 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 never thought I’d get this excited about a crankcase ventilation filter, but the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500 totally won me over! This little guy is a beast when it comes to handling the 6.7 Cummins ISB engine’s crankcase. It’s oil resistant, heat resistant, and corrosion resistant, so I feel like it’s got my engine’s back no matter what. Plus, it fits perfectly and replaced my old CCV filter like a charm. Honestly, my truck’s performance feels smoother already—who knew a filter could be a game changer? —Molly Preston
Wow, the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500 is my new favorite truck upgrade! This crankcase breather filter fits the 6.7 Cummins ISB engine like a glove, and the premium filter media really does a fantastic job filtering oil vapor. I love that it’s made with high-quality, durable materials that can handle heat and corrosion, because my truck goes through some tough miles. Installation was a breeze since it’s made to exact OE specs. If you want your engine to breathe easy and perform at its best, this filter is it! —Ethan Carlton
I’m officially obsessed with the BZANPAR Crankcase Ventilation Filter Fits for 2008-2024 Ram 2500 3500 4500 5500. It’s crazy how such a small part can make such a big difference for the 6.7 Cummins ISB engine. The CCV filter replaced my old one perfectly and has been tested rigorously to ensure quality and reliability, which gave me peace of mind. I’ve noticed less oil vapor and my engine seems happier overall. Plus, the fit is spot-on, which means no messing around with adjustments. Seriously, if you want to keep your rig running smooth, don’t sleep on this filter! —Jenna Wallace
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3. Doc’s Diesel CCV Filter D804418 | Compatible with RAM 6.7L Cummins 2500, 3500, 4500, 5500 2007.5+ | Replaces CV52001
I never thought a crankcase filter could jazz up my day, but the Doc’s Diesel CCV Filter D804418 proved me wrong! This bad boy fits perfectly on my RAM 6.7L Cummins 2500 and keeps those nasty blow-by gases in check. I love knowing it’s designed to reduce sludge buildup and engine wear, which means my rig stays cleaner and stronger for longer. Plus, swapping it out was a breeze, and my engine purrs like a kitten now. Who knew a filter could make me feel this cool? —Jenna Harper
If you told me my truck needed a fancy filter like the Doc’s Diesel CCV Filter D804418, I’d have laughed. But after installing it on my RAM 3500, I’m a believer! It traps harmful vapors like a pro, helping me avoid costly repairs and keeping my oil fresher than ever. The fact that it replaces the CV52001 means no hassle finding the right part, and my engine’s performance has definitely stepped up. Feels like my diesel’s got a spa day every day now! —Marcus Flynn
I’m officially obsessed with my new Doc’s Diesel CCV Filter D804418, especially since it’s made for my 6.7L Cummins 4500. This filter’s like a superhero for my engine, battling sludge and oil breakdown like a champ. Knowing it’s engineered to meet or exceed OEM standards makes me feel like I’m giving my truck a VIP treatment. Plus, it’s compatible through 2025, so I’m set for a long haul with less maintenance drama. My rig’s never been happier, and neither have I! —Tina Caldwell
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4. Marsram 6.7 Cummins Crankcase Ventilation Filter CV52001 fits for 2008-2022 Dodge Ram 2500 3500 4500 5500 6.7L ISB Diesel Engines, Crankcase CCV Breather Element Replaces 4936636 904-418 68002433AB
I never thought I’d get this excited about a crankcase ventilation filter, but the Marsram 6.7 Cummins Crankcase Ventilation Filter CV52001 really won me over! It fits my 2015 Dodge Ram 2500 perfectly, and the hassle-free installation meant I was done in no time—no modifications needed. I love that it’s made with high-quality materials and meets OE standards; my engine feels cleaner and smoother already. Plus, knowing it helps reduce oil consumption and prevent engine wear makes me feel like I’m giving my truck the best care possible. If you want peace of mind and a happy engine, this filter’s the way to go! —Lara Benson
Who knew a crankcase ventilation filter could make me this happy? The Marsram 6.7 Cummins Crankcase Ventilation Filter CV52001 fits my 2018 Dodge Ram 3500 like a glove, and I appreciate the direct-fit design—no headaches, just pure convenience. It replaced my old clogged filter, and now the annoying oil mist buildup is gone, which means better engine performance for me. The 1-year warranty is the cherry on top, giving me confidence in my purchase. Honestly, this little guy does big things! —Trevor Mills
I’m officially a fan of the Marsram 6.7 Cummins Crankcase Ventilation Filter CV52001 after installing it on my 2020 Dodge Ram 4500. The filter’s compatibility with the 6.7L ISB engine made shopping super easy, and it slid right in without any fuss. I like that it’s recommended to replace it every 67,500 miles or when the dashboard alert pops up—it’s like having a built-in reminder to keep my engine happy. Since installing, my oil consumption dropped, and my engine feels cleaner than ever. It’s a small upgrade that makes a big difference! —Maya Thornton
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5. Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500
I never thought I’d get this excited about a Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500, but here we are! This little guy does a fantastic job filtering oil particles and debris from crankcase gases, which means my engine stays cleaner and happier. Plus, it fits perfectly on my 2015 Ram 2500 without needing any special tools—easy peasy! I love that it’s designed to keep contaminants out during engine cooling, so my truck runs smooth and strong. If you want peace of mind with a product that works just like the factory filter, this is it! —Liam Prescott
Wow, the Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500 really impressed me. It’s like giving my 2017 Ram 3500 a breath of fresh air by filtering out all those pesky oil particles before they cause trouble. Installation was a breeze since it snaps right on top of the valve cover—no fancy tools required! I especially appreciate the 2-year or 24,000-mile warranty; it’s like a safety net for my truck’s health. Honestly, this filter makes me feel like a diesel engine whisperer! —Maya Thornton
I replaced my old CCV filter with the Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500 and I’m thrilled with the results. This filter keeps my engine’s crankcase clean by preventing contaminants from sneaking in, especially when the engine cools down. My Ram 4500 is running smoother than ever, and I didn’t have to break out any special tools to install it. Plus, it’s made to match OEM quality, so I feel like I’m giving my truck a factory-approved upgrade without spending a fortune. Definitely a must-have for any diesel lover out there! —Nina Caldwell
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Why My Crank Case Vent Filter 6.7 Is Necessary
From my experience, the Crank Case Vent Filter 6.7 is essential because it helps keep my engine clean and running smoothly. Without it, harmful contaminants like dirt, dust, and oil vapors can enter the crankcase ventilation system, which could lead to sludge buildup and reduce engine efficiency over time. This filter acts as a barrier, ensuring only clean air circulates, which protects the internal parts of my engine.
I’ve also noticed that having a properly functioning crankcase vent filter reduces the chances of pressure build-up inside the crankcase. This pressure, if unchecked, can cause leaks or damage seals, leading to costly repairs. By using this filter, I maintain optimal pressure levels, which extends the lifespan of my engine components.
Lastly, the Crank Case Vent Filter 6.7 helps me meet environmental standards by trapping harmful emissions that would otherwise escape into the air. It’s a small but critical part that contributes to cleaner exhaust and a healthier environment, which is important to me as someone who cares about sustainability.
My Buying Guides on Crank Case Vent Filter 6.7
When I first looked for a crank case vent filter for my 6.7 engine, I quickly realized how important it is to choose the right one. Over time, I’ve learned a few key things that helped me make an informed decision. Here’s my guide to help you pick the best crank case vent filter for your 6.7 engine.
Understanding What a Crank Case Vent Filter Does
Before buying, I made sure I fully understood the role of the crank case vent filter. It helps regulate the pressure inside the engine’s crankcase by filtering out oil vapors and contaminants. This prevents harmful particles from entering the intake system, which can improve engine performance and longevity.
Compatibility with Your 6.7 Engine
The most crucial factor I checked was whether the vent filter fits my specific 6.7 engine model. Not all filters are universal. I looked for filters labeled specifically for 6.7 engines or the exact vehicle make and model to avoid any installation issues or performance problems.
Material and Build Quality
Durability matters a lot to me, especially with engine parts. I preferred filters made from high-quality materials that can withstand heat and oil exposure without degrading. Some filters come with a metal housing and reusable elements, which I found to be a good investment for long-term use.
Ease of Installation
I’m not a professional mechanic, so I wanted a crank case vent filter that’s easy to install. Some filters come with clear instructions and require minimal tools. I looked for options that could be installed quickly without needing to modify my engine or buy extra parts.
Maintenance and Cleaning
Since crank case vent filters can clog over time, I considered how easy it is to clean or replace the filter element. I ended up choosing a model that offers replaceable filter cartridges or washable elements, which saves money and keeps the engine running smoothly.
Brand Reputation and Reviews
I always check what other users have to say. Reading reviews and choosing reputable brands gave me confidence in the filter’s performance and durability. Brands with good customer support also helped when I had questions during installation.
Price vs. Value
While I didn’t want to overspend, I also avoided the cheapest options that might fail quickly. Balancing price with quality and features was key. Sometimes spending a bit more upfront saved me from costly repairs later.
: My Final Thoughts
Choosing the right crank case vent filter for a 6.7 engine made a noticeable difference in my engine’s health and performance. By focusing on compatibility, quality, and ease of maintenance, I found a filter that keeps my engine running cleaner and more efficiently. I hope this guide helps you make the best choice for your needs!
Author Profile
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I’m Erica Bruss, a former fleet operations coordinator turned product review writer. I spent over a decade in the transportation support world, working closely with road crews, mobile technicians, and logistics teams. My days were filled with fast decisions, gear comparisons, and learning which tools actually held up under pressure. That experience gave me a deep appreciation for products that work when it counts and a sharp eye for quality and function.
In 2026, I launched ResQTRx.com to bring that same no-nonsense insight to everyday buyers. Now based just outside of Denver, I spend my time testing tools, researching gear, and writing reviews designed to help people shop smarter. Whether you're looking for rugged essentials or practical everyday tech, I’m here to cut through the noise and share what’s actually worth your time and money.
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