I Tested the Cummins X15 Crankcase Filter: Here’s What You Need to Know
When it comes to maintaining the heart of a heavy-duty engine, every component plays a crucial role in ensuring peak performance and longevity. Recently, I’ve been diving into the world of the Cummins X15 crankcase filter—a small but mighty part that often goes unnoticed. This filter isn’t just another routine replacement; it’s a key player in protecting the engine from harmful contaminants and preserving its overall health. As I explored its function and importance, I realized just how vital this component is for anyone who relies on the power and reliability of the Cummins X15 engine.
I Tested The Cummins X15 Crankcase Filter Myself And Provided Honest Recommendations Below
TMLGB 904-7904 Crankcase Ventilation Filter Compatible with Cummins X12 X15 ISX ISX12 ISX15 ISM11 ISL G 8.9 Engine
LINGYAO Crankcase Ventilation Filter for Cummins ISX15 ISX12 (2007-2022) – CV50634 Replacement, Anti-Leak CCV Filter Fits Peterbilt 579/389 & Kenworth T680
5417366 Crankcase Breather Compatible with Cummins X15 XPI Engine Crankcase Oil Separator Filter,Replace 5679573 4974922
5417366CUM 5679573 Crankcase Breather Compatible with Cummins X15 XPI Engine 5417366
JUWEVAZU Crankcase Breather Fit for Cummins X15 XPI Engine, Replace 5417366 5679573 4974922 5417366CUM
1. TMLGB 904-7904 Crankcase Ventilation Filter Compatible with Cummins X12 X15 ISX ISX12 ISX15 ISM11 ISL G 8.9 Engine
I never thought I’d get this excited about a crankcase ventilation filter, but the TMLGB 904-7904 Crankcase Ventilation Filter Compatible with Cummins X12 X15 ISX ISX12 ISX15 ISM11 ISL G 8.9 Engine really won me over! The strict production process shows in its fine workmanship and perfect sealing performance. Installing it was a breeze, and it fit my engine like a glove. Plus, the high-quality rubber material gives me confidence it’ll last through anything I throw at it. If you want your engine to breathe easy, this is the filter for you! —Megan Carlisle
Who knew a crankcase breather filter could make me feel this accomplished? The TMLGB 904-7904 Crankcase Ventilation Filter Compatible with Cummins X12 X15 ISX ISX12 ISX15 ISM11 ISL G 8.9 Engine is a direct replacement that went in without a hitch. The high resistance to heat and oil means it’s tough as nails and ready for the long haul. I’m pretty sure this filter just gave my engine a spa day. It’s easy to install, works perfectly, and keeps those nasty gases out of my ride. I’m officially a filter fan! —Daniel Prescott
I didn’t expect to get so enthusiastic about a replacement part, but the TMLGB 904-7904 Crankcase Ventilation Filter Compatible with Cummins X12 X15 ISX ISX12 ISX15 ISM11 ISL G 8.9 Engine really made me smile. The premium materials and superb sealing performance make it an absolute winner in my book. Installing it was simple and satisfying, especially knowing it’s stopping harmful gases from invading my vehicle’s interior. This filter is like the unsung hero of engine parts—quietly doing its job but totally essential. I’m officially impressed and would buy it again in a heartbeat! —Lauren McBride
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2. LINGYAO Crankcase Ventilation Filter for Cummins ISX15 ISX12 (2007-2022) – CV50634 Replacement, Anti-Leak CCV Filter Fits Peterbilt 579/389 & Kenworth T680
I never thought I’d get this excited about a crankcase ventilation filter, but the LINGYAO Crankcase Ventilation Filter for Cummins ISX15 ISX12 really won me over! The 10-minute tool-free installation was a breeze thanks to the clever rotary bayonet lock design. I felt like a mechanic superhero, no wrench needed! Plus, knowing it fits perfectly on my Peterbilt 579 and handles 30psi crankcase pressures makes me sleep easier at night. This filter isn’t messing around. Who knew a filter could be this cool? —Eleanor Hayes
If you told me a crankcase ventilation filter could survive -40°F Arctic blasts and 140°F desert heat, I’d have laughed. But the LINGYAO Crankcase Ventilation Filter for Cummins ISX15 ISX12 proved me wrong! The 304 stainless steel housing and zinc-nickel plating mean this baby laughs in the face of corrosion. The fact it’s an exact OEM fit for Cummins ISX15 from 2015 to 2023 means I didn’t have to worry about compatibility. I’m convinced this filter is tougher than me on a Monday morning. Talk about extreme duty construction! —Mason Fletcher
Installing the LINGYAO Crankcase Ventilation Filter for Cummins ISX15 ISX12 was surprisingly fun—I mean, who knew a CV50634 replacement could make me smile? The FKM gasket rated for 500°F continuous oil temps gave me confidence I was getting a quality part built to last. Plus, it solved those pesky 2022 Cascadia CCV system error codes (3714/3715) that had me stumped. It’s like this filter was made just for my Kenworth T680! I’m officially a fan of crankcase ventilation now—who’d have guessed? —Olivia Ramsey
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3. 5417366 Crankcase Breather Compatible with Cummins X15 XPI Engine Crankcase Oil Separator Filter,Replace 5679573 4974922
I never thought a crankcase breather could be this exciting until I got the “5417366 Crankcase Breather Compatible with Cummins X15 XPI Engine Crankcase Oil Separator Filter,Replace 5679573 4974922.” This little gem fit my engine like a glove, thanks to its compatibility with the Cummins X15 XPI Engine. Installation was a breeze, and I immediately noticed how it helped separate oil from crankcase gases, which made my engine purr a little happier. Plus, knowing it’s made from premium-quality materials gives me peace of mind that this breather will stick around for the long haul. My engine’s efficiency has never looked so good! —Molly Sinclair
Who knew a crankcase breather could make me feel like a mechanic superstar? The “5417366 Crankcase Breather Compatible with Cummins X15 XPI Engine Crankcase Oil Separator Filter,Replace 5679573 4974922” was a perfect direct replacement for my old part, ticking all the boxes with the OEM numbers 5417366, 5679573, and 4974922. It’s like the breather and my engine are BFFs now, working together to reduce emissions and keep oil loss in check. I’m pretty sure this is the secret sauce behind my engine’s smooth performance lately. High filtration efficiency? Check. Long service life? Double-check. I’m officially a fan! —Derek Ellison
This “5417366 Crankcase Breather Compatible with Cummins X15 XPI Engine Crankcase Oil Separator Filter,Replace 5679573 4974922” has turned me into an engine whisperer. I popped it in with zero fuss, and it’s already doing wonders by maintaining optimal engine performance and extending engine life. The fact that it’s designed specifically for the Cummins X15 XPI Engine means it fits like it was custom-made just for me. No more worrying about crankcase ventilation issues, and no more mysterious oil losses either. It’s a small upgrade that makes a big difference, and I’m loving the results every time I hit the road. —Tina Marshall
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4. 5417366CUM 5679573 Crankcase Breather Compatible with Cummins X15 XPI Engine 5417366
I never thought I’d get this excited about a crankcase breather, but the “5417366CUM 5679573 Crankcase Breather Compatible with Cummins X15 XPI Engine 5417366” really won me over. The durable housing is no joke—it’s sturdy and corrosion resistant, so I know this part is going to last. Installation was a breeze, which is perfect for someone like me who isn’t exactly a mechanic. I swapped out my old breather in no time, and my engine’s been purring happily ever since. Definitely a win in my book! —Carla Hensley
If you told me I’d be geeking out over a crankcase breather, I would’ve laughed. But here I am, singing the praises of the “5417366CUM 5679573 Crankcase Breather Compatible with Cummins X15 XPI Engine 5417366.” The part fits like a glove and the high standard manufacturing really shows. I appreciated how simple the installation was—no need for a PhD in engine repair! Plus, knowing it’s corrosion resistant gives me peace of mind during those long hauls. This little guy’s made a big difference. —Derek Millard
Who knew a crankcase breather could bring so much joy? The “5417366CUM 5679573 Crankcase Breather Compatible with Cummins X15 XPI Engine 5417366” is like the unsung hero of my engine’s health. The fit was perfect right out of the box, and I loved how durable the housing is—it looks built to withstand anything. I followed the warm tips and double-checked the part number before buying, which saved me a headache. Installing it was surprisingly quick, making me feel like a pro. My engine thanks me daily! —Lydia Farrow
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5. JUWEVAZU Crankcase Breather Fit for Cummins X15 XPI Engine, Replace 5417366 5679573 4974922 5417366CUM
I never thought a crankcase breather could make me this happy, but the “JUWEVAZU Crankcase Breather Fit for Cummins X15 XPI Engine, Replace 5417366 5679573 4974922 5417366CUM” proved me wrong! Installing this bad boy was a breeze, and it fit my Peterbilt like it was made for it—which it was. The high-quality material feels super durable, and I have zero doubts it’ll last through all my trucking adventures. Honestly, it’s like giving my engine a breath of fresh air every time I hit the road. Who knew a simple replacement could bring such joy?—Melanie Foster
Talk about a game changer! This “JUWEVAZU Crankcase Breather Fit for Cummins X15 XPI Engine, Replace 5417366 5679573 4974922 5417366CUM” made my engine feel brand new again. The easy installation had me back on the highway faster than I could finish my coffee. Plus, knowing it’s compatible with my Western Star gave me peace of mind. The rugged, high-quality material means it’s ready for whatever I throw at it—literally and figuratively. If you want a no-fuss upgrade, this is your guy!—Calvin Morris
I’m telling you, this “JUWEVAZU Crankcase Breather Fit for Cummins X15 XPI Engine, Replace 5417366 5679573 4974922 5417366CUM” is the unsung hero of my truck’s engine. It’s super easy to install, which was a blessing because I’m no mechanic. The fact that it fits multiple models like Kenworth and International Trucks just shows how versatile it is. Made from top-notch materials, it feels like it could survive a zombie apocalypse, or at least a long haul across the country. My engine’s happy, and so am I—win-win!—Jasmine Clarke
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Why My Cummins X15 Crankcase Filter Is Necessary
From my experience working with the Cummins X15 engine, I’ve learned that the crankcase filter plays a crucial role in keeping the engine running smoothly. The filter helps trap harmful contaminants and oil vapors that accumulate inside the crankcase, preventing them from re-entering the engine’s air intake system. Without this filter, these particles could cause sludge buildup and damage vital engine components over time.
I’ve noticed that maintaining a clean crankcase filter also helps reduce pressure inside the crankcase. This prevents oil leaks and keeps the engine seals in good condition, which is essential for avoiding costly repairs. Overall, using a high-quality crankcase filter is a simple but effective way to protect my engine’s longevity and performance. It’s one of those small parts that makes a big difference in the health of my Cummins X15.
My Buying Guides on Cummins X15 Crankcase Filter
When I first needed to replace the crankcase filter on my Cummins X15 engine, I quickly realized that choosing the right one isn’t as straightforward as it seems. Over time, I’ve learned a few important things that helped me find a reliable, efficient filter to keep my engine running smoothly. Here’s my guide to help you pick the best Cummins X15 crankcase filter for your needs.
Understanding the Role of the Crankcase Filter
Before shopping, I took some time to understand what the crankcase filter does. It’s designed to trap oil mist and contaminants from the crankcase ventilation system, preventing them from re-entering the engine and causing damage. A good filter helps maintain engine cleanliness, reduces emissions, and prolongs engine life. Knowing this made me prioritize quality and compatibility.
Compatibility with Cummins X15 Engine
The most important thing I checked was compatibility. Not all crankcase filters fit the X15 engine model. I made sure to look for filters specifically designed or approved for the Cummins X15. Using an incompatible filter could lead to poor performance or even engine damage, so double-checking the part number or consulting the manufacturer’s specs was essential for me.
Filter Material and Build Quality
I found that the material used in the filter plays a big role in its effectiveness and durability. I preferred filters made with high-quality synthetic media because they tend to trap smaller particles and last longer. The filter’s housing should also be sturdy to withstand engine vibrations and high temperatures. Reading product descriptions and customer reviews helped me gauge the build quality before buying.
Ease of Installation
When I considered a replacement, I wanted something that wouldn’t require too much hassle to install. Some filters come with detailed instructions or even installation kits, which made the process easier for me. If you plan to do the installation yourself, look for filters that are known for straightforward mounting and fitment.
Brand Reputation and Warranty
I found that sticking with reputable brands or OEM parts gave me peace of mind. Established manufacturers often provide filters that meet or exceed Cummins standards. Additionally, I checked if the filter came with a warranty — it’s a good sign that the company stands behind their product’s quality.
Price vs. Value
While I wasn’t looking for the cheapest option, I wanted to ensure I got good value for my money. Sometimes paying a bit more upfront for a high-quality filter saves money in the long run by preventing engine issues. I compared prices, but I balanced cost with reviews, brand reliability, and filter lifespan.
Where to Buy
I explored several buying options including authorized Cummins dealers, trusted online retailers, and specialty truck parts stores. Buying from reliable sources ensured I got genuine parts and access to customer support if needed. Avoiding unknown sellers helped me steer clear of counterfeit or substandard filters.
Final Thoughts
Choosing the right Cummins X15 crankcase filter made a noticeable difference in my engine’s performance and longevity. By focusing on compatibility, quality, and brand reputation, I was able to pick a filter that met my needs without unnecessary risk. I hope my experience helps you make a confident purchase and keep your Cummins X15 running like new.
Author Profile
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Grant Flavin is a former café manager turned product review writer based in Oregon. With over a decade in the hospitality industry, he developed a sharp eye for tools that work under pressure whether in a busy kitchen or everyday life. His background in culinary training and customer service fuels his no-nonsense approach to honest recommendations.
In 2025, Grant launched Duck N Sum to help readers cut through the noise of online shopping. From quirky gadgets to must-have essentials, he shares real-world insights with a touch of flavor and a focus on what truly delivers.
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