Best Air Filter For 6.7 Cummins

Off-Road Bandit TeamMar 18, '21

A piece of plastic and some fibers—an air filter doesn’t seem like it’s all that important. But a good one makes all the difference for your 6.7-liter Cummins turbo-diesel. With a high-quality air filter, you can ensure that dust, insects, and debris don’t damage the engine or get sucked into the air and fuel mixture. And that means your behemoth of an engine is always firing on all cylinders.

What Should I Look For When Buying an Air Filter?

Not all air filters are the same. So make sure you consider a few of the different aspects to make sure you find one that checks all your boxes. Although you may have your own checklist, make sure to sift through these aspects before buying a new air filter.

Air Filter Type

Air filters come in three types: cloth/cotton (gauze is also lumped in here), paper, and foam. Cloth filters are washable and reusable and can often increase the air intake for better performance. Paper filters span a wide price range, but are disposable and thus, usually the cheapest option. Foam filters are most often used in small engines, but they sometimes find their way into vehicles. These are reusable, although they can leave bits of foam in the engine when they start to break down. As a result, you should monitor them frequently.

OEM vs. Aftermarket

Some Ram 6.7-liter Cummins turbo-diesel owners are only comfortable with OEM (MOPAR) parts for their truck. And there’s nothing wrong with that. But if you want to truly customize the performance of your vehicle, aftermarket air filters offer a wider selection to suit your particular tastes and needs.

Warranty

While you should look to trusted brands that have a proven track record in the air filter industry, don’t let that detract from other lesser-known options. In some cases, these air filters may be every bit as good as the big boys, but with a lower price point to gain entry into a competitive market. As such, the only way to truly protect yourself or find a great air filter is to check out the warranty. A reputable aftermarket air filter should come with a warranty that covers a few years—or at least roughly the amount of the air filter’s usable life.

Review of the Best Air Filters For 6.7 Cummins

Air filters for the 6.7 Cummins turbo-diesel come in several varieties for every type of taste and budget. By reviewing some of the top-rated options, you can hone in on the perfect air filter for your vehicle while also getting the performance you desire.

Best Overall: K&N Performance Kit 33-5005: 2013-2019 2500-5500

Pros

  • Pre-oiled and easy to install
  • Low-maintenance design only requires cleaning every 50,000 miles
  • Saves hundreds of dollars over the life of the filter compared to paper filters
  • 50% more airflow than paper filters
  • 10-year, 1-million-mile warranty

Cons

  • Some buyers report no noticeable impact on performance/fuel economy
  • Not the best choice for off-roading

What Recent Buyers Report

Overall, the K&N Performance Kit Engine Air Filter is one of the most highly rated in the industry. Easy to install, pre-oiled, and long-lasting, users praise its durability and filtration compared to similarly priced options. However, some buyers report that this is a poor option for off-roading, as it doesn’t offer the protection of off-road-specific air filter options.

Why It Stands Out to Us

Since 1969, K&N has been a leader in the air filter industry, providing all types of filters for a variety of vehicles. For your 6.7 Cummins, the result is no different. With a ridiculous but point-making 1-million-mile warranty, excellent filtration, and a long life span, this filter is sure to give you the performance you require.

Bottom Line

Although a bit more expensive than disposable or other paper options, the K&N Performance Kit Engine Air Filter is a superb value buy, saving you hundreds of dollars over cheaper air filters. And while it doesn’t necessarily pass the off-road test, everyday drivers and commuters should enjoy the noticeable impact in drivability and overall performance in their 6.7 Cummins-powered vehicles.

Runner-up: Mopar 53034051AB

Pros

  • Genuine OEM air filter
  • Top-notch filtration to support engine longevity
  • Highly affordable compared to “premium” aftermarket manufacturers
  • Long-lasting, even for heavy towing or off-roading
  • No problems with fitment on Cummins engines

Cons

  • Some concerns about the longevity of the air filter due to flimsy construction

What Recent Buyers Report

As a genuine Mopar/OEM part, the Mopar 53034051AB Air Filter puts buyers’ minds at ease. Plus, with no fitment issues for the Cummins engine and the same filtration power as the stock option, this filter is sure to boost performance without the drawbacks or question marks provided by aftermarket air filters. Compared to aftermarket options, Cummins owners find this air filter the best option at the most affordable price.

Why It Stands Out to Us

When it comes to replacement parts, buyers almost always have some concerns about the quality of aftermarket parts. And that’s why genuine OEM parts always have their place. With an official Mopar air filter, you won’t have to worry about performance, warranty, or any other aspect. It’s the stock filter that you’ve come to trust over the years.

Bottom Line

For the Cummins purist, nothing beats a genuine OEM air filter such as the Mopar 53034051AB Air Filter. But those looking for a bit of extra air flow or off-road performance may want to research options more suited to their expectations or driving style.

Best for the Money: FRAM Extra Guard CA10261

Pros

  • Twice the protection of regular disposable filters
  • Lasts for 12,000 miles
  • Trusted brand
  • One-year warranty
  • Affordable compared to similar products

Cons

  • May require slight modifications to fit air filter on 6.7 Cummins

What Recent Buyers Report

Buyers report that the FRAM Extra Guard CA10261 Air Filter is one of the best value purchases available. For a fraction of the sum of competitors, FRAM delivers with an excellent disposable filter that lasts twice as long as other throw-away options. However, some report that it doesn’t perform up to the standards of OEM or stock air filters, diminishing overall performance.

Why It Stands Out to Us

With a name like FRAM, you know you’re getting a quality air filter. For a nominal sum, you get a quality filter with a one-year warranty, which is just about as long as it takes to drive 12,000 miles. And with high-quality customer service, you never have to worry about defects or other issues.

Bottom Line

For the money, no other product can beat the longevity and durability of the FRAM Extra Guard CA10261. But those that want a washable/reusable option or put their 6.7 Cummins to the test may want to research other options.

Editor's Pick: WIX 46930

Pros

  • Buyers report improved performance over stock air filters
  • Excellent filtering power, even for off-pavement driving
  • Some users report 25,000 to 30,000 miles before replacement
  • One-year warranty
  • Low price

Cons

  • Not washable or reusable
  • May have fitment issues with certain model years of 6.7 Cummins Rams

What Recent Buyers Report

With between 25,000 and 30,000 miles before replacement is needed, the WIX 46930 Air Filter is a bargain that doesn’t skimp on the filtering power. And despite its great filtering, buyers reported that their performance increased compared to the stock air filter.

Why It Stands Out to Us

Disposable air filters typically reach the end of their useful life at about 12,000 miles. Yet this air filter doubles that amount, effectively putting more money in your pocket. A one-year warranty seals the deal, providing you with peace of mind to go along with top-notch performance.

Bottom Line

WIX is a reputable name in the air filter industry, and the WIX 46930 Air Filter follows the same path. Although it’s disposable, the 30,000-mile life span experienced by many buyers should make you rethink the benefits of a disposable air filter—and much to your liking.

Honorable Mention: Fleetguard AF27684

Pros

  • Cummins-approved and recommended air filter
  • Meets and exceeds OEM standards and specifications
  • Reputable brand that’s been around since 1963
  • Fits without cramming or modification
  • Cheaper than OEM air filter

Cons

  • More expensive than other disposable filters

What Recent Buyers Report

The Fleetguard AF27684 Air Filter is one of the highest-rated air filters on the market. Buyers praise its performance, price, and overall dependability, even in comparison to OEM or Mopar air filters.

Why It Stands Out to Us

If you have a 6.7 Cummins engine, why go with anything but a Cummins-approved air filter? Well, that’s just what you get with this air filter. Throw in great satisfaction from virtually all customers, and this air filter has everything you want at a great price.

Bottom Line

While customers with OEM preferences make balk at the Fleetguard AF27684 Air Filter, you can’t argue with a Cummins-recommended option.

Types of Air Filters

Like many other types of aftermarket parts, air filters come in several styles that each have their own benefits and drawbacks. Here are the three most common types of air filters to help you decide which is best for your 6.7 Cummins turbo-diesel engine.

Paper Air Filters

Most stock air filters are of the paper variety. Inexpensive yet excellent at filtering out smaller particles and debris, paper air filters provide a cost-effective solution. However, paper filters also have some disadvantages. For one, they’re disposable, meaning you may end up paying more for filters over the life of your truck compared to reusable or washable options. Besides, these types of filters may have superior filtering power, but can also lessen air flow, which may reduce peak performance.

Foam Air Filters

Foam air filters are the preferred choice for drivers who love getting off the beaten path. While these are more difficult to clean and oil (if necessary), they are highly efficient at filtering out tiny dust particles you might find as an off-road enthusiast. And if not properly maintained, foam air filters can also start to disintegrate and get sucked into the engine—creating an entire set of problems. Thus, careful, vigilant maintenance is highly recommended.

Cloth Air Filters

Made of certain types of cloth, gauze, or synthetic fibers, cloth air filters are reusable and enjoy improved airflow compared to paper air filters. Durability is the name of the game here, as most cloth air filters can last up to 100,000 miles if properly maintained. These air filters also provide better airflow and coupled with a cold air intake system, you’ll notice an uptick in performance. Plus, cloth air filters often provide a noticeable sound of air being drawn into the intake, especially with turbocharged engines such as the 6.7 Cummins.

What Are The Benefits of an Air Filter? 

Despite their relatively affordable price, air filters play a vital role in the performance and longevity of your 6.7 Cummins turbo-diesel. Here are some of the top benefits of an air filter for your truck.

Better Engine Performance

While a variety of factors play into the performance of your engine, the air-to-fuel mixture is one of the most important aspects. The better the mix, the more efficiently your engine will perform. As a result, a quality air filter is essential. With a blend of excellent air flow and filtration, your air filter can complement your engine’s overall performance, allowing you to reap the benefits when you’re behind the wheel.

Improved Fuel Economy

In the same vein as engine performance, the air-to-fuel mixture plays a pivotal role in fuel economy. If your engine isn’t getting enough air or is sucking down debris and dust, the engine has to work harder and use more fuel to make the vehicle go. Therefore, a quality air filter and routine replacement or maintenance should help your 6.7 Cummins go the extra mile.

Increased Engine Life Span

If your air filter fails, you can suffer engine damage from the debris circulating throughout the system. Sometimes, this can even enter the turbocharger, causing catastrophic damage, and in some cases, total failure of either the turbo or the entire engine. Thus, having a high-quality, clean air filter is essential to preserve the integrity of the 6.7 Cummins turbo-diesel.

Affordable Performance in One Small Package

For 6.7 Cummins owners looking to improve their performance and the longevity of their engine, nothing beats the affordability of an air filter. Just make sure to put it on the list of routine maintenance, and you’ll enjoy the burly, aggressive acceleration and sound of your Cummins engine.