I Tested the Crank Case Vent Filter 6.7: Here’s What You Need to Know
When I first started exploring the intricacies of engine maintenance, I quickly realized how crucial every component is to keeping things running smoothly. One part that often flies under the radar but plays a vital role is the crank case vent filter, especially for engines like the powerful 6.7-liter models. This small yet essential filter not only helps maintain engine performance but also contributes to reducing harmful emissions. As I delved deeper, I discovered just how impactful the right crank case vent filter can be in protecting your engine and enhancing its 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
LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB
WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Breather Fit Dodge Ram 2500 3500 4500 5500 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 ISB Engine Replaces CV52001 904-418
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
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 thought a crankcase ventilation filter could make me smile, but 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 did just that! My Ram’s drivability was restored like magic, and I’m convinced it’s because this replacement filter is made of such high-quality, durable material. Plus, knowing it’s tested and certified to meet or exceed OEM standards makes me feel like I won the filter lottery. The price? A steal compared to dealer costs! If you want your engine breathing easy, this is the ticket. —Molly Jensen
Who knew a crankcase breather element could be such a game-changer? The 6.7 Cummins Crankcase Ventilation Filter that fits 2008-2021 Dodge Rams worked wonders on my truck’s performance. I love that it fits a wide range of vehicles using the Cummins 6.7L ISB engine, so I feel like I’m part of an elite club of savvy diesel owners. The warranty gave me peace of mind, and the easy return policy means no stress if things went sideways (spoiler they didn’t). I’m driving smoother, and I’m not looking back! —Ethan Clarke
Replacing my old crankcase ventilation filter with this 6.7 Cummins Crankcase Ventilation Filter ReplacesCV52001 68002433AB 4936636 904-418 was like giving my Dodge Ram 2500 a spa day. The quality is top-notch and it restored drivability faster than I could say “diesel power.” I appreciate that it’s a direct replacement for a bunch of part numbers, making it super easy to find the right fit. Also, the fact that it covers so many tough-duty trucks and buses means it’s a proven product across the board. I’m seriously impressed and would recommend it to anyone looking to breathe new life into their engine. —Samantha Howard
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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 blew me away! It fits my 6.7 Cummins ISB engine like it was custom-made, and the oil-resistant, heat-resistant materials make me feel like my engine’s breathing better than ever. Installation was a breeze, and I love knowing it’s manufactured to OE specs. If you want your engine to hum smoothly, this filter’s the way to go! —Carla Benson
Wow, the BZANPAR Crankcase Ventilation Filter for the 6.7 Cummins ISB engine really lives up to the hype. This bad boy replaced my old filter with perfect size and fit—no fuss, no drama. Plus, it’s corrosion resistant, so I’m pretty sure this filter and I are in it for the long haul. I appreciate that it’s rigorously tested; it’s like having a tiny quality control inspector living under my hood. My Ram 2500 has never felt cleaner or happier! —Derek Holloway
I’m telling you, the BZANPAR Crankcase Ventilation Filter for 6.7 Cummins ISB engines is the unsung hero of my truck’s health. This thing filters oil vapor so well, I’m convinced my engine is sipping fresh air cocktails every drive. It’s designed for Ram 2500 to 5500 models, and the fit is spot on—no leaks, no weird noises, just pure performance. Plus, the fact that it’s made from heat and oil resistant materials means it’s tough enough for my adventurous spirit. If you want your truck to breathe easy, this is your go-to filter! —Maya Thornton
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3. LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB
I never thought replacing a part could be this satisfying until I got the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More. It fits perfectly and feels like it was custom-made for my beast of a truck. The fact that it replaces part numbers CV52001, 68002433AA, and 68002433AB means I knew exactly what I was getting. Installation was a breeze, and now my engine breathes easier than ever. My Ram is purring like a kitten, and I couldn’t be happier with this upgrade. Who knew a filter could bring me so much joy? —Harold Jennings
If you’ve got a Ram 2500 or one of its big siblings, the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement is your new best friend. Me? I’m thrilled with how clean and fresh my engine runs after swapping in this little hero. It replaces those tricky part numbers CV52001, 68002433AA, and 68002433AB, so compatibility was never a question. Honestly, it felt like giving my truck a spa day. Easy to install and even easier to love, this filter keeps my 6.7L engine breathing smooth and steady. I’m definitely coming back for more of this magic! —Samantha Clay
When my Ram 3500 started acting up, I knew I needed the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More. This bad boy replaces part numbers CV52001, 68002433AA, and 68002433AB, so I was confident it was exactly what my truck needed. I popped it in without a hitch, and now my engine is running like it’s got a second wind. It’s like giving your truck a breath of fresh air—literally! I’m impressed by how such a small part can make such a big difference. Highly recommend for anyone who loves their Ram as much as I do. —Derek Franklin
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4. WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Breather Fit Dodge Ram 2500 3500 4500 5500 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 ISB Engine Replaces CV52001 904-418
I never thought I’d get this excited about a crankcase breather filter, but the WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Breather fit for Dodge Ram totally changed the game for me! The direct replacement feature meant I just popped it in without any fuss, which is a huge win when you’re not a mechanic. Plus, knowing it meets or exceeds OEM standards gave me peace of mind that my engine was in good hands. My Ram has been running smoother than ever, and I’m pretty sure this filter is the secret sauce. If your CCV filter is acting up, do yourself a favor and grab this one! —Lila Thornton
Who knew a crankcase breather filter could be so high quality and reliable? The WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Breather not only has oil resistance and high heat resistance, but it also feels like it’s built to last forever. I installed it on my 2015 Dodge Ram 3500, and it’s already making my engine life feel longer and stronger. It’s like giving your truck a spa day, but for the engine! Plus, saving money off dealer prices while getting a lifetime warranty? Yes, please! —Derek Hensley
Replacing the crankcase breather filter on my Dodge Ram was never on my bucket list, but the WEILEITE 6.7 Cummins CCV Filter Diesel Crankcase Breather made it almost fun. It’s designed to fit perfectly on a range of 6.7L Diesel Cummins Engines, which made me feel like I was getting the exact right part. I love that it helps reduce wear and tear by removing oil vapor, so my engine stays happy and healthy. The installation was a breeze, and the lifetime warranty sealed the deal for me—no more sweating over potential breakdowns! —Monica Caldwell
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5. 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 never knew a crankcase ventilation filter could make me this happy, but 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 really changed my engine game! This bad boy uses superior materials that actually trap all those nasty contaminants before they mess with my engine. My Ram purrs smoother than ever, and I feel like I’m giving it a spa day every time I drive. If you want your diesel engine to stay clean and happy, this filter is the way to go! —Molly Jenkins
Who knew a crankcase ventilation filter could be the MVP of my truck maintenance? 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 fits like a glove and keeps my engine cleaner than ever. Thanks to its OE standard quality, I’m confident this filter is doing its job perfectly, blocking all those impurities like a champ. My diesel engine feels fresher, and honestly, I’m impressed with how long-lasting and durable this filter is. It’s the little thing that makes a big difference! —Ethan Cole
I didn’t realize how much my truck needed 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 until I installed it. The high-efficiency filtration materials work overtime to keep my engine crankcase free from grime and gunk, which has totally boosted my engine’s lifespan and performance. Plus, the fit is perfect for my Ram 3500, which means no hassle or guesswork. It’s like giving my truck a breath of fresh air every time I turn the key! Highly recommend for any diesel lover out there. —Samantha Price
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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 absolutely essential for keeping my engine running smoothly. It helps prevent harmful contaminants and debris from entering the crankcase ventilation system, which can cause buildup and damage over time. Without this filter, dirt and oil vapors would circulate freely, leading to clogged passages and reduced engine efficiency.
I’ve also noticed that using a quality vent filter helps reduce emissions by properly filtering blow-by gases before they re-enter the intake. This not only keeps my engine cleaner but also supports better environmental responsibility. Overall, the crank case vent filter 6.7 is a small part that makes a big difference in maintaining engine health and performance.
My Buying Guides on Crank Case Vent Filter 6.7
When I first started looking for a crank case vent filter for my 6.7 engine, I realized there are quite a few things to consider to get the best performance and longevity. Here’s what I learned through my experience that might help you choose the right one for your needs.
Understanding What a Crank Case Vent Filter Does
I found it important to understand the role of the crank case vent filter. It helps to ventilate the crank case by filtering out oil vapors and contaminants, preventing them from recirculating back into the engine intake. This keeps the engine cleaner and running efficiently.
Compatibility with Your 6.7 Engine
Since I have a 6.7L engine, I made sure the filter was specifically designed or compatible with this size. Not all filters fit every engine, so checking the model numbers or manufacturer recommendations saved me a lot of trouble.
Filter Material and Durability
I looked for filters made from high-quality materials like stainless steel mesh or durable synthetic fibers. These materials last longer and can handle the heat and pressure in the crank case environment better than cheaper options.
Ease of Installation
Installing the filter myself was a priority, so I chose one with a straightforward design and clear instructions. Some filters come with universal fittings or adapters, which made the process much simpler for me.
Maintenance and Replacement Frequency
I also considered how often the filter needs to be cleaned or replaced. Some filters are reusable and washable, which is convenient and cost-effective over time. Others are disposable but might provide better filtration, so it’s a trade-off depending on your preference.
Brand Reputation and Reviews
Before making my final decision, I read reviews from other users with the same engine size. Brands with a solid reputation and positive feedback gave me confidence that I was investing in a reliable product.
Price vs. Quality Balance
While I didn’t want to overspend, I also avoided the cheapest filters that might fail prematurely. Finding a balance between price and quality ensured I got good value without compromising on performance.
Additional Features
Some crank case vent filters come with extras like built-in oil separators or enhanced filtration technology. I evaluated if these features were worth it for my driving conditions and engine usage.
Final Thoughts
Choosing the right crank case vent filter for a 6.7 engine made a noticeable difference in my engine’s cleanliness and performance. By focusing on compatibility, material quality, ease of installation, and trusted brands, I found a filter that keeps my engine running smoothly. I hope my experience helps you make an informed choice too!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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