Best 6.7L Cummins Fuel Filters – 2021 Review

| Last Updated: December 24, 2021

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It is an aspect of your engine that no one really ever talks about – your fuel filtration system. And sure, fuel filtration is not necessarily the most sexy topic when it comes to truck engine functionality.

But the truth is, if you do not have a solid, well functioning fuel filter, it will eventually take a toll on the ability of your entire truck. And that is even less sexy.

So read on to learn more about these incredibly important tools and which ones will work best for you and your truck’s needs.

Comparison of the Best 6.7L Cummins Fuel Filters

  • Made of heavy duty, high quality material
  • Is constructed with extreme conditions in mind
  • Provides maximum filtration and minimum flow restrictions
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  • Durable, will last you for a long time
  • Will help extend the longevity of your vehicle
  • Comes with a comprehensive limited product warranty
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  • Durable, will last for a large amount of miles
  • Dual filtration system makes truck run even better
  • Comes with detailed, thorough instructions for installation
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  • Well made, despite not being brand name
  • Includes all necessary seals needed for installation
  • Can run for longer than the 15,000 miles advertised
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  • Works as well as the branded Mopar filters
  • Is specifically designed for Cummins engine systems
  • Really good at catching larger particles inside engine
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Why It’s Important to Take Care of Your Fuel Filter

Fuel filters are just what they sound like – a filtration system for your truck’s fuel, AKA the most important part of your truck’s functioning. Fuel filters help trap particles that are likely inside your fuel but will definitely not contribute to your engine’s success, such as rust and dirt.

It is incredibly important to keep your fuel filter functioning at a high level because if those particles are able to penetrate your engine, they will eventually cause a much bigger mess that would take much more time (and money!) to fix than the time it would take to just take care of your fuel filter.

Taking care of your fuel filter involves paying attention to your truck’s functioning and, yes, replacing your fuel filter when it has reached the end of its natural life. More on that in the next section.

How Often Should You Replace Your Fuel Filter?

If you have an older truck, you can usually get away with going a little longer between changing out your fuel filters. This is because older trucks are typically designed with a bit more space between the different aspects of the engine, so the engine is less likely to be gummed up with contaminants.

If you have a newer truck, you should swap out your fuel filter according to the guidelines in your truck’s manual. For 6.7 Cummins engines, this is typically around every 15,000 – 20,000 miles.

Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEM

Factors Contributing Towards Our Top Picks

We have curated a list of the best fuel filters for 6.7 Cummins engines below – here’s what factors contributed to that list:

Ease of Installation

Filters can be pretty messy – that is kind of the whole point of their functioning. We found filters that were as simple and straightforward to swap out as possible, to minimize the potential for mess.

Filter Efficiency

Obviously, you want a filter that is actually going to effectively screen out particles and protect your vehicle’s engine. The filters we have selected all have some of the highest filter efficiency ratings you will be able to find on today’s market.


Filters are not designed to last forever, and you are ultimately going to have to switch your filter out for a new one at some point. But, some filters do last longer than others, and we tried to find the ones that would last the longest.

Review of the Best 6.7 Cummins Fuel Filters

Here is our list of the very best 6.7 Cummins fuel filters available on the market today:

Best Overall:
AFE PRO-GUARD D2 Fuel Filter


  • Has a 99% filter efficiency
  • Will boost your engine’s efficiency
  • Can be bought individually or in packs of 4
  • Has one of the highest filter efficiency ratings


  • Does not come with a nut on the bottom

The AFE PRO-GUARD D2 Fuel Filter is a high quality fuel filter that will make a noticeable difference in your vehicle. It provides maximum filtration capacity and minimum flow restrictions, so it will not clog up anything inside your engine.

It is constructed with extreme conditions in mind, including an anti backflow valve which is specifically designed to reduce potential damage from cold starts. If you live in places of the country prone to dramatically low temperatures, you may want to invest in this filter! 

It is incredibly easy to tell if this filter is doing its job properly – just check your oil on the dipstick and you will be able to see immediately that it is significantly cleaner after going through this filtration system. The AFE PRO-GUARD D2 Fuel Filter will be able to maximize your engine’s potential efficiency and take your truck performance to the next level.  

Bottom Line

The AFE PRO-GUARD D2 Fuel Filter is an excellent heavy duty filter that will be able to stand up to even the toughest conditions. It does not come with a nut on the bottom, so installation can be a little bit complicated.

Best for the Money:
NAPA Gold Replacement Fuel Filter


  • Strong
  • Durable
  • Easy to install
  • Has an anti drain back valve
  • Endorsed by users who once worked in the auto filtration industry


  • Some users report their filter arrived with some small metal shavings on top

The NAPA Gold Replacement Fuel Filter is an excellent fuel filter that will consistently and reliably perform for your engine. It is well made of high quality material, so it will last you a long time, which will in turn increase your engine’s longevity as well. It comes with a comprehensive limited product warranty, so if there does happen to be an issue with the filtration system, you do not need to worry about paying to have it replaced.

This filter will function well in both normal and severe driving conditions, from short trips around town, to stop and go traffic, to dirt roads, to construction sites, all the way up to extended interstate travel.

And do not stress about the complications of installing this filter – this bad boy comes with a rubber grip on the bottom so you will easily be able to twist it off,even if your hands are super greasy and oily from working on other aspects of your truck’s engine.

Bottom Line

The NAPA Gold Replacement Fuel Filter is an excellent fuel filter for any and all driving conditions. Sometimes things can get a bit out of whack when the filter is shipped, but nothing that will compromise its performance ability.

3. Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEM


  • Durable
  • Easy to install
  • Comes with good instructions
  • Increases overall truck efficiency


  • Installation process can be messy

The Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEM is an awesome filtration unit that actually comes with multiple components: a fuel filter and a water separator. The water separator will need to be installed under the body of your truck while the fuel filter will be installed under the hood. It is worth pointing out that if your truck is older than a 2013 model, this system will not be necessary as the older models did not feature two filters nor do they have space for them.

But, for those with newer models, this filtration system will produce noticeable upgrades to your truck. The dual filter system will make the entire engine run more efficiently and effectively. And if you are balking at the thought of installing not just one but two separate filters, do not stress.Mopar makes sure to include really thorough instructions so installation will be a breeze.

Bottom Line

The Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEM is an awesome dual filtration system that will really take your truck to the next level. But during the installation process, you may want to consider that diesel tends to leak everywhere.   

4. Dodge 6.7L Cummins Fuel Filter Water Separator


  • Works well with towing
  • Well made of high quality material
  • Will not cause your engine to throw codes
  • Fits easily and includes all necessary seals for installation
  • Advertised as being able to run for 15,000 miles but actually could run for longer


  • Not genuine Mopar products

If you are interested in Mopar quality products without having to pay the Mopar quality price, you will probably be pretty intrigued by the Dodge 6.7L Cummins Fuel Filter Water Separator. It is essentially exactly the same as the Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEM listed above, but it is not an official Mopar product and is therefore a much more economical option.

Just like the Mopar OEM set, this set includes a fuel filter to be installed underneath your truck’s hood and a water separator to be installed underneath your truck’s body. These filters will fit just as easily as Mopar filters do, and they come with all the necessary seals for installation so that process should be fairly straightforward. If you are looking for a filtration system that will enhance your truck’s performance and give you a lot of bang for your buck, you have got to go with the Dodge 6.7L Cummins Fuel Filter Water Separator.

Bottom Line

The Dodge 6.7L Cummins Fuel Filter Water Separator is an excellent filtration system that will give you a ton of bang for your buck. If branding is important to you, keep in mind that these are not real Mopar products.    

5. Cummins Filtration FS53000 Fuel Filter


  • Can last for up to 230,000 miles
  • Great for catching bigger particles
  • Works just as well as branded Mopar filters
  • Specifically designed by Cummins to work in their engine systems


  • Does not fit super easily

The Cummins Filtration FS53000 Fuel Filter is an awesome fuel filter that you know you will be able to rely on for the 6.7L Cummins engine inside of your truck because this filter is manufactured by Cummins itself! You really will not be able to get a fuel filter that matches your truck better.

Users report that this filter works just as great as the branded Mopar fuel filters that typically run at a much more expensive price point. This fuel filter will get the job done for your truck. It is especially good at catching the larger particles that are most likely to infect your engine and cause some serious damage.

Plus, it is durable and will last an extremely long time. You will not be able to find a fuel filter that is better for your engine than the Cummins Filtration FS53000 Fuel Filter.

Bottom Line

The Cummins Filtration FS53000 Fuel Filter is a great fuel filter that is specifically designed to match your Cummins engine. Installation can be a little tricky, though.


Fuel filters are often overlooked when it comes to the conversation around engine functionality, but in truth, they are one of the most crucial aspects of engine operation. Make sure you invest in a quality filter that will efficiently screen particles so they do not ultimately gum up your engine’s ability to run and make driving your truck a lot less fun. You can’t go wrong with one of the choices from our list! Your engine will certainly thank you.      

Sean comes from the forums actually and drives an OBS Ford. He writes fantastic DIYs and knows his way around a camera, too. We keep him caffeinated and away from DPF filters to avoid another rant about recent emissions restrictions.