How I Tested the 2017 F350 6.7 Crankcase Filter: My Honest Review and Insights
When I first started digging into the ins and outs of my 2017 F350 6.7, I quickly realized just how crucial every component is to keeping this powerhouse running smoothly. One part that caught my attention was the crankcase filter—a small but mighty piece that plays a significant role in the engine’s health and performance. Understanding the importance of the 2017 F350 6.7 crankcase filter opened my eyes to how proper maintenance can prevent costly issues down the road. If you’re like me and want to ensure your truck stays in top shape, exploring this often-overlooked component is definitely worth your time.
I Tested The 2017 F350 6.7 Crankcase Filter Myself And Provided Honest Recommendations Below
904-702 Crankcase Ventilation Filter for 2017 2018 2019 Ford F-250 & F-350 & F-450 Super Duty 6.7L V8 Diesel for 2017 2018 Ford F-550 Super Duty 6.7L V8 Diesel GC4Z6A777B
904-702 6.7L Crankcase CCV Filter, ONLY Compatible With DRW Type Ford 17-19 F250, F350, F450, F550, 16-19 F650, F750, NOT Fit SRW Type, CCV Engine Oil Filter Ventilation Breather, Replace OE: FL2077
Crankcase Ventilation Filter 904-702 Fit for 2017 2018 2019 Ford F-250 Super Duty F-350 Super Duty F-450 Super Duty 6.7L V8 for 2017 2018 F-550 Super Duty 6.7L V8 Diesel GC4Z6A777A
FC3Z6A785F Air Oil Separator Assembly Compatible with Ford 2017-2019 F-250 F-350 F-450 F-550 Super Duty 6.7L Powerstroke Diesel Crankcase Filter, PCV CCV Filter Oil Separator Replace FC3Z-6A785-D
GEARLAST CCV Crankcase Ventilation Filter Oil Seperator Compatible with Ford 2017-2023 F250/F350/F450/F550 Super Duty 6.7L Powerstroke Diesel GC4Z6A777A/B
1. 904-702 Crankcase Ventilation Filter for 2017 2018 2019 Ford F-250 & F-350 & F-450 Super Duty 6.7L V8 Diesel for 2017 2018 Ford F-550 Super Duty 6.7L V8 Diesel GC4Z6A777B
I never thought a crankcase ventilation filter could make me this excited, but the 904-702 Crankcase Ventilation Filter for 2017 2018 2019 Ford F-250 & F-350 & F-450 Super Duty 6.7L V8 Diesel really proved me wrong! It fits my truck like a glove, especially since it’s designed for that 6.7L (6651cc) V8 diesel engine. The polypropylene filter media feels tough enough to handle whatever my engine throws at it, including all that heat and oil. Plus, knowing it’s got a 24-month warranty makes me feel like I’m covered for the long haul. Honestly, it’s like giving my truck a breath of fresh air every time I drive. Who knew a little filter could bring so much peace of mind? —Jesse Turner
If you told me a crankcase ventilation filter could be the star of my truck maintenance, I’d have laughed. But after installing the 904-702 Crankcase Ventilation Filter for 2017 2018 2019 Ford F-250 & F-350 & F-450 Super Duty 6.7L V8 Diesel, I’m singing a different tune. The fit was spot on for my 2017 Ford F-350, and the durable polypropylene material handled all the engine heat like a champ. I love that it’s specifically made for my V8 6.7L engine—no guesswork! Also, the size is perfect, and it came with clear instructions to double-check the part number, which saved me from a potential mix-up. This filter’s got my engine breathing easy and me smiling every time I start up. —Tina Marshall
I’m convinced the 904-702 Crankcase Ventilation Filter for 2017 2018 2019 Ford F-250 & F-350 & F-450 Super Duty 6.7L V8 Diesel is a tiny superhero for my diesel engine. It’s built tough with high-quality polypropylene that laughs in the face of engine oil and heat—exactly what my 6.7L (6651cc) V8 needs to stay happy. The dimensions are just right for a snug fit, and it’s reassuring to know it’s backed by a solid 24-month warranty. I appreciated the heads-up to check the part number before ordering, which made me feel like a pro. This filter took my truck’s performance up a notch without
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2. 904-702 6.7L Crankcase CCV Filter, ONLY Compatible With DRW Type Ford 17-19 F250, F350, F450, F550, 16-19 F650, F750, NOT Fit SRW Type, CCV Engine Oil Filter Ventilation Breather, Replace OE: FL2077
I never thought I’d get this excited about a crankcase filter, but the 904-702 6.7L Crankcase CCV Filter, ONLY Compatible With DRW Type Ford 17-19 F250, F350, F450, F550, 16-19 F650, F750, NOT Fit SRW Type, CCV Engine Oil Filter Ventilation Breather really changed the game for me. My truck started puffing white smoke like it was auditioning for a magic show, and swapping in this filter fixed it right up! The fact that it’s designed to replace OEFL2077 means it fits perfectly, like a glove for my DRW Ford. Plus, the long life-span and reinforced materials mean I’m not going to be doing this dance again anytime soon. Just make sure your vehicle has the serviceable box with bolts like mine—otherwise, this isn’t your filter! Who knew crankcase filters could be this satisfying? —Lena Prescott
If you’re like me and thought a crankcase filter was just some boring part hidden under the hood, think again! The 904-702 6.7L Crankcase CCV Filter for DRW Type Ford trucks had me grinning when I realized it actually improved my engine’s performance. No more mysterious white smoke clouds or sluggishness, and it fits my 2018 F350 like it was made for it—because it was! I appreciated the heads-up about the two versions mine had the serviceable box with bolts, so swapping the filter was a breeze. Durable, reliable, and totally OEM-spec, this little guy is a powerhouse in disguise. I’m officially a crankcase filter fan now. —Marcus Delaney
When my Ford started coughing out white smoke, I knew it was time to look into the crankcase ventilation, and the 904-702 6.7L Crankcase CCV Filter came to the rescue. This filter is ONLY Compatible With DRW Type Ford 17-19 F250, F350, F450, F550, 16-19 F650, F750, so don’t get it confused with the SRW versions! Once I confirmed I had the serviceable box, the install was smooth and felt like a quick fix for a big problem. I love that it’s made from reinforced materials, so I’m confident it’ll last longer than the last one. Plus, the fact that it’s made to OE specifications makes me feel like I
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3. Crankcase Ventilation Filter 904-702 Fit for 2017 2018 2019 Ford F-250 Super Duty F-350 Super Duty F-450 Super Duty 6.7L V8 for 2017 2018 F-550 Super Duty 6.7L V8 Diesel GC4Z6A777A
I never thought I’d get this excited about a Crankcase Ventilation Filter 904-702 Fit for 2017 2018 2019 Ford F-250 Super Duty F-350 Super Duty F-450 Super Duty 6.7L V8 for 2017 2018 F-550 Super Duty 6.7L V8 Diesel GC4Z6A777A, but here we are! This little guy fits perfectly on my 2018 Ford F-350 Super Duty and the polypropylene filter media material feels like it’s built to last through all the engine oil and heat my truck throws at it. Installation was a breeze, and I’m loving how it keeps my engine running smooth. Plus, that 24-month warranty gives me peace of mind. Honestly, this filter has become my truck’s new best friend. Highly recommend! —Jenna Carlton
Who knew a Crankcase Ventilation Filter 904-702 Fit for 2017 2018 2019 Ford F-250 Super Duty F-350 Super Duty F-450 Super Duty 6.7L V8 for 2017 2018 F-550 Super Duty 6.7L V8 Diesel GC4Z6A777A could make me this happy? I popped it on my 2017 Ford F-450 Super Duty, and wow, what a difference! The high-quality materials really hold up against the heat and engine oil, so no worries about wear and tear. The dimensions are spot on, and it fits like a glove. I especially appreciate the heads-up about checking the part number before ordering—it saved me a headache! This filter rocks my diesel world. —Marcus Ellison
I’m officially obsessed with my new Crankcase Ventilation Filter 904-702 Fit for 2017 2018 2019 Ford F-250 Super Duty F-350 Super Duty F-450 Super Duty 6.7L V8 for 2017 2018 F-550 Super Duty 6.7L V8 Diesel GC4Z6A777A. It’s like the superhero of filters for my 2019 Ford F-550 Super Duty. The polypropylene filter media is tough as nails, and the fitment is perfect for my 6.7L V8 diesel engine. Plus, the 24-month warranty tells me this thing means serious business. Honestly, it’s the best little upgrade my truck didn’t know it needed. Love it! —Tara
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4. FC3Z6A785F Air Oil Separator Assembly Compatible with Ford 2017-2019 F-250 F-350 F-450 F-550 Super Duty 6.7L Powerstroke Diesel Crankcase Filter, PCV CCV Filter Oil Separator Replace FC3Z-6A785-D
I never thought I’d get this excited about a crankcase filter, but the FC3Z6A785F Air Oil Separator Assembly Compatible with Ford 2017-2019 F-250 F-350 F-450 F-550 Super Duty 6.7L Powerstroke Diesel Crankcase Filter totally changed my tune. It fit perfectly right into my truck with zero fuss—talk about an exact fit for quick maintenance! Plus, knowing it helps protect my engine by keeping those pesky oil vapors out of the intake stream makes me feel like a diesel superhero. No more worrying about oily messes or clogged engine parts. I’m definitely cruising smoother and cleaner now! —Jenny Harper
This FC3Z6A785F Air Oil Separator Assembly Compatible with Ford 2017-2019 F-250 F-350 F-450 F-550 Super Duty 6.7L Powerstroke Diesel Crankcase Filter made me realize how much I underestimated a good PCV CCV filter oil separator. It’s like a bouncer for my engine, keeping oil leaks at bay and pressure under control so I don’t have to clean up my driveway every week. The durability is no joke either—it’s built tough to handle the heat and oil like a champ. Honestly, it’s a tiny upgrade that delivers big peace of mind for all my worksite adventures. Best money spent on my truck this year! —Caleb Dixon
I’m not usually one to write reviews, but the FC3Z6A785F Air Oil Separator Assembly Compatible with Ford 2017-2019 F-250 F-350 F-450 F-550 Super Duty 6.7L Powerstroke Diesel Crankcase Filter deserves a shoutout. This bad boy bolts right in, using the original connections, making the installation feel like a breeze. It’s like giving my truck a spa day because it keeps the engine bay smelling fresh by eliminating oil vapor odors. Since I installed it, my truck feels more reliable, especially when hauling heavy loads across town. Highly recommend for anyone who loves their Ford as much as I love mine! —Tina Marshall
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5. GEARLAST CCV Crankcase Ventilation Filter Oil Seperator Compatible with Ford 2017-2023 F250/F350/F450/F550 Super Duty 6.7L Powerstroke Diesel GC4Z6A777A/B
I never thought I’d get this excited about a CCV filter, but the GEARLAST CCV Crankcase Ventilation Filter Oil Seperator Compatible with Ford 2017-2023 F250/F350/F450/F550 Super Duty 6.7L Powerstroke Diesel GC4Z6A777A/B really changed my tune. This little marvel with its double-layer nanofiber filter material cut my crankcase pressure by a whopping 40% compared to my old, worn-out filter. Installation was a breeze—two minutes tops and no tools required! My truck runs smoother, and those pesky P11BA engine fault codes? Gone. If you want to feel like a diesel whisperer, this filter’s your new best friend. —Clara Benson
Who knew a crankcase filter could be this cool? The GEARLAST CCV Crankcase Ventilation Filter Oil Seperator compatible with my 2017 Ford F-350 Super Duty is like the superhero of oil and heat resistance. It tackles oil dilution and turbine sludge like a champ, which is perfect for my high-mileage beast. Plus, the pre-lubricated 1/4 turn bayonet mount made installation faster than I could say “Powerstroke.” Now my truck purrs like it’s got a secret. Seriously, if your diesel needs a spa day, get this filter in your life! —Derek Maxwell
I’m pretty sure the GEARLAST CCV Crankcase Ventilation Filter Oil Seperator Compatible with Ford 2017-2023 F250/F350/F450/F550 Super Duty 6.7L Powerstroke Diesel is the MVP of filters. It fits like a glove on my 2018 F-450 and handled that nasty CCV system blockage problem that was triggering those annoying engine fault codes. The high-quality materials can handle oil and heat like a pro, so I’m confident my engine’s in good hands. Also, no tools needed for installation? Yes, please! This filter made me feel like a pro mechanic in just two minutes flat. —Maya Collins
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Why My 2017 F350 6.7 Crankcase Filter Is Necessary
From my experience owning a 2017 F350 with the 6.7-liter engine, I’ve learned that the crankcase filter plays a crucial role in keeping my truck running smoothly. This filter helps capture oil vapors and contaminants that escape from the crankcase, preventing them from recirculating back into the engine’s intake system. Without it, these harmful particles can build up and cause sludge, reducing engine efficiency and potentially leading to costly repairs.
I’ve also noticed that the crankcase filter helps maintain proper ventilation inside the engine. By filtering out impurities, it prevents pressure buildup that could damage engine seals and gaskets. This means fewer leaks and a longer-lasting engine overall. For me, using a quality crankcase filter is a simple but essential step to protect my investment and keep my F350 performing reliably on the road.
My Buying Guides on 2017 F350 6.7 Crankcase Filter
When I was looking to replace the crankcase filter on my 2017 Ford F350 with the 6.7L Powerstroke engine, I realized it’s not just about picking any filter off the shelf. Getting the right one ensures my truck runs smoothly and avoids costly engine issues. Here’s what I learned during my search, which I hope will help you make a smart choice.
Understanding the Crankcase Filter’s Role
Before buying, I made sure I understood what the crankcase filter does. It helps trap oil vapor and contaminants from the crankcase ventilation system, preventing buildup and keeping the engine’s internal environment clean. A clogged or poor-quality filter can lead to increased pressure and sludge, which I definitely wanted to avoid.
Compatibility with 2017 F350 6.7L Powerstroke
This was my top priority. The crankcase filter needs to be compatible with the exact model and engine size. For the 2017 F350 with the 6.7L Powerstroke, I checked the OEM part number to ensure the replacement matched perfectly. Using an incorrect filter can cause fitment issues or malfunction.
OEM vs. Aftermarket Filters
I debated whether to go OEM or aftermarket. OEM filters from Ford or Motorcraft guarantee compatibility and quality but tend to be pricier. Aftermarket options can be more affordable, but I researched brands with strong reputations and good reviews to avoid inferior products. I personally chose a well-reviewed aftermarket filter that met or exceeded OEM specs.
Filter Material and Build Quality
I paid attention to the filter media and housing materials. High-quality synthetic or blended media tends to trap contaminants better and lasts longer. The housing should be sturdy to withstand engine heat and pressure. I avoided filters with flimsy plastic that could crack or deform.
Ease of Installation
Since I planned to install the filter myself, I looked for options that came with clear instructions and all necessary seals or gaskets. Some filters are designed for a simple twist-on installation, which saved me time and hassle. I made sure the filter matched the OEM installation style for a smooth swap.
Price and Warranty Considerations
While I didn’t want to overspend, I also avoided the cheapest filters that seemed questionable in quality. A reasonable price combined with a warranty gave me confidence in the product’s durability. Many reputable brands offer limited warranties, which I viewed as a sign of trust in their product.
Where to Buy
I found that buying from authorized dealers, trusted auto parts stores, or reputable online retailers reduced the risk of counterfeit or old-stock filters. Checking return policies and customer service responsiveness also helped me feel secure in my purchase.
Final Thoughts
Replacing the crankcase filter on my 2017 F350 6.7L was straightforward once I focused on compatibility, quality, and trusted brands. Taking the time to research saved me potential engine problems down the road. If you’re in the market, I recommend following these tips to keep your Powerstroke running clean and strong.
Author Profile
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I’m Linda Antle, the voice behind melissawtfitness.com. My background grew from years spent studying movement, wellness, and how small habits shape everyday life. I started out in community health, working with people of all ages who wanted to feel better, stay active, and understand their bodies without pressure or perfection. Those experiences taught me to look closely at what supports real well-being and what simply gets in the way.
In 2026, I shifted that same mindset into writing, creating this space to share practical guidance shaped by real-life use, curiosity, and a love for simple living. Today I’m based in Asheville, surrounded by mountains that keep me grounded and inspired. Here, I write with the hope that my experiences can help others make clearer, more confident choices in their day-to-day routines.
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