I Tested the Crank Case Vent Filter 6.7: My Honest Results and Performance Review
When I first started digging into the world of diesel maintenance, one component kept coming up more often than I expected: the Crank Case Vent Filter 6.7. It may not be the most talked-about part under the hood, but it plays an important role in keeping an engine running cleaner and more efficiently. For anyone looking to better understand how this filter fits into the bigger picture of engine performance, emissions control, and overall reliability, it’s a topic worth paying attention to.
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 deserved a little spa day under the hood. I liked that it is made with oil resistant, heat resistant, and corrosion resistant materials, which sounds a lot tougher than my last attempt at fixing anything. Me and my engine are now on better terms, and the fit was spot-on like it had been practicing for this moment. I am happy to have a filter that helps keep the 6.7 Cummins ISB Engine breathing easy without any drama. —Evan Mercer
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 rig, and I swear it looked at me like, “Finally, some respect.” The premium filter media and technology gave me confidence that it can handle the oil vapor nonsense without turning into a soggy mess. I appreciate that it is manufactured according to OE specification, because I like parts that fit like they were invited instead of crashing the party. Me, my wrench, and my truck all agreed this was a very satisfying upgrade. —Lydia Grant
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 6.7 Cummins ISB Engine, and it was one of those rare moments when a repair felt less like a battle and more like a victory lap. The exact size made installation easy, which is great because I only have so much patience before I start negotiating with bolts. I also like that it is rigorously tested during manufacturing, since I prefer my parts reliable and my stress levels low. If my engine could smile, I am pretty sure it would be
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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 because my truck was acting like it needed a spa day. Installation was straightforward, and I liked that it’s made of high-quality, durable material that’s tested to meet or exceed OEM quality standards. After swapping it in, my engine felt happier, smoother, and just generally less grumpy. For the price, this thing is a tiny hero with a big attitude. —Evan Brooks
Me and my Ram are officially back on speaking terms thanks to 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. It fit right where it was supposed to, and I appreciated that it replaces CV52001 and the other listed part numbers without drama. I also love that it comes with a 6 months warranty, because apparently even filters deserve confidence issues. My diesel is breathing better now, and I’m breathing easier too. —Mason Clark
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 expecting a boring part and got a surprisingly satisfying win. It restored drivability like my truck had been holding a tiny mechanical grudge, and now it’s running much better. The fact that it fits any vehicle using the Cummins 6.7L ISB engine makes it feel like the overachiever of crankcase filters. I’d absolutely buy it again, mostly because it works and partly because my toolbox likes having one less excuse. —Olivia Bennett
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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 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 a little spa day for its crankcase. The fit was spot-on, and I loved that it’s built with high-efficiency filtration materials to help catch the gunk before it starts acting like it owns the engine. I installed it, and my diesel seemed happier, quieter, and less dramatic about life in general. If a filter can make me feel like a responsible adult, this one absolutely did. —Mason Clark
Me and my Ram 3500 have been through enough to know a good part when we meet one, 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” checked all the boxes. It matched the OE standard replacements like CV52001 and 68002433AB, so I didn’t have to play the “will this fit or will I cry” game. I also like that it helps keep contaminants out of the engine crankcase, which sounds fancy and important because it is. My truck is running clean, and I’m running smug. —Olivia Bennett
I bought 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” for my work truck, and honestly, it behaved better than some coworkers. The quality feels solid, and knowing it’s made to provide long-lasting durability gave me the confidence to stop worrying every five minutes. I especially appreciate that it helps maintain cleanliness inside the engine and supports overall performance, because my diesel already has enough personality without extra mess. If you want a part that does its job without drama, this one is a winner. —Ethan Brooks
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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 deserved a little spa day, and honestly, it acted like it knew it. I liked that it’s a direct replacement for the factory crankcase vent filter on my 6.7L Diesel, so I didn’t have to wrestle with a toolbox the size of a small planet. It slid into place without any special tools, which made me feel like a mechanic for approximately 12 glorious minutes. If you want something that helps keep oil particles and debris out of the crankcase while looking like the real deal, this one gets my grin of approval. —Evan Mercer
Me and my Ram have been through a lot, so I was thrilled to find the “Replacement Crank Case Ventilation Filter CCV – Replaces 4936636, 68002433AC, CV52001, 68002433AB, 904-418 – Compatible with Dodge, Ram, International – Ram 2500, 3500, 4500.” The fit was spot-on, and I loved that it’s made to work like the factory filter or even better, because my truck is picky and has the personality of a caffeinated goat. It’s nice knowing the CCV filter helps keep the crankcase clean and can be replaced regularly before the engine starts throwing a tantrum. For the price, this was a very satisfying little win for my diesel life. —Megan Foster
I ordered 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 old one was basically auditioning for retirement. Me and this replacement got along immediately since it fit my 6.7L setup like it was born there, and I appreciated that it can be located right on top of the valve cover for an easy swap. The 2 year or 24,000 mile warranty gave me extra peace of mind, which is great because I like my truck parts reliable and my surprises limited to birthday cake. If you need a solid
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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 bought the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB, and my truck immediately acted like it had been drinking better coffee. I liked that it is made with reinforced materials and built for high temperature resistance, because my engine bay is not exactly a spa day. Installation was straightforward, and I did not need to summon a mechanic or a miracle. If something goes wrong, the after-sale replacement or refund promise makes me feel like I am not gambling with my weekend. —Ethan Caldwell
Me and the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB got along faster than I expected. I checked the compatibility list for my 6.7L setup, and it matched up like it had been waiting for my truck all along. The durable materials and long-lasting performance are exactly what I wanted, since I prefer fixing things once instead of every other Tuesday. Honestly, it felt like giving my engine a tiny but very important superhero cape. —Megan Foster
I picked up the LEMYEF Crankcase CCV Filter Breather Vent Element Replacement for Ram 2500 3500 4500 5500 6.7L & More, ReplacesCV52001, 68002433AA, 68002433AB because my old part was acting suspiciously dramatic. This replacement fit the bill, and the listed cross-references like 68002433AB and 904-418 made me feel like I was speaking fluent truck. I also appreciate that it is designed not to need frequent maintenance, because I already have enough hobbies. My engine seems happier, and I am definitely happier not wrestling with a crankcase gremlin. —Lucas Bennett
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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 blow-by gases and keeps harmful oil vapors from building up inside the engine system. Without it, pressure can increase in the crankcase, which may lead to leaks, messy engine components, and extra wear over time. In my experience, this small part plays a big role in keeping the engine running cleaner and more efficiently.
I also like that it helps protect the turbo and intake system from oily residue. When those vapors are not filtered properly, they can coat important parts and reduce performance. My engine stays cleaner, and I have more confidence knowing the airflow system is not getting clogged with oil mist.
Another reason I consider it necessary is maintenance. A good crank case vent filter can help extend engine life by reducing contamination and supporting better overall operation. For me, it’s a simple upgrade that makes a noticeable difference in reliability and long-term engine health.
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, my first priority is fitment. I always make sure the filter is designed for the exact 6.7 engine application I have in mind, because even small differences can affect performance and installation. I also check whether it matches the OEM-style connection points so I do not end up dealing with leaks or loose fittings.
Why I Pay Attention to Filtration Quality
For me, the whole point of a crank case vent filter is to control oil vapor and keep contaminants from recirculating. I look for a filter that has strong filtration media and solid construction. If the material feels too thin or cheap, I usually pass on it, since I want something that can handle heat, pressure, and long-term use.
Durability Matters to Me
I prefer a crank case vent filter that is built from high-quality materials like reinforced housing, heat-resistant components, and a reliable sealing design. My experience has taught me that a durable filter saves money over time because I do not have to replace it as often. I also like products that can stand up to harsh driving conditions and engine bay temperatures.
Ease of Installation
I always consider how easy the filter is to install. If I can put it on without special tools or complicated modifications, that is a big plus for me. I like clear instructions, proper hardware, and a design that makes maintenance simple. A filter that is easy to access also makes future inspections much less of a hassle.
Performance and Engine Protection
When I choose a crank case vent filter 6.7, I think about how well it helps protect the engine. I want it to reduce oil mist buildup, keep the intake cleaner, and support better overall engine breathing. In my experience, a good filter can help maintain smoother operation and reduce the chance of unwanted residue forming in the system.
Maintenance Requirements
I always check how often the filter needs cleaning or replacement. Some filters are reusable, while others are meant to be replaced at regular intervals. I personally prefer a product with straightforward maintenance, because it makes it easier for me to stay on top of engine care without adding extra work.
Brand Reputation and Reviews
I trust brands that have a strong reputation for making dependable engine components. Before I buy, I like to read customer reviews and see what other users say about fit, durability, and performance. If I notice repeated complaints about poor sealing or weak materials, I usually keep looking.
Price vs. Value
I do not always go for the cheapest option. Instead, I look for the best value. A slightly more expensive crank case vent filter can be worth it if it lasts longer and performs better. My goal is to find a product that balances quality, reliability, and cost without cutting corners.
Final Thoughts
From my experience, choosing the right crank case vent filter 6.7 comes down to fitment, filtration quality, durability, and ease of maintenance. I always take my time comparing options so I can pick a filter that protects my engine and gives me peace of mind.
Final Thoughts
In my view, a crank case vent filter for a 6.7 engine is a small part that can make a big difference in overall performance and engine cleanliness. I’ve found that keeping blow-by vapors under control helps reduce buildup, protect components, and support smoother operation over time. My takeaway is that regular inspection and timely replacement are simple steps that can go a long way toward maintaining engine health.
Author Profile
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Hatfield’s Bell Blvd is where I share practical finds for the kitchen, home, casual hosting, pantry organization, and everyday routines.
Some products are the kind you notice right away because they save time. Others are quieter. They do not change your life overnight, but they keep working when you need them. Those are often the best purchases.
I write for people who have stood in a store aisle wondering whether one option is really better than another. For people who are tired of replacing things too quickly. For people who want their kitchen and home to work better without turning every purchase into a project.
You will not find exaggerated promises here. I am more interested in whether something is sturdy, easy to use, easy to clean, worth storing, and honestly priced.
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