For your truck to perform well, you need to make sure that the diesel you fill it with is free from any contaminants. Your Ram 2500/3500's fuel filter does that for you, and in return deserves some periodic maintenance and replacement.
If you fail to keep up with maintenance, you'll interfere with the engine's ability to perform well, but it also means that you'll shorten the engine's life faster. So to make sure that your maintenance bills are low and the life of your truck long, having a good fuel filter is a good place to start.
We look at some of the popular choices so that it's easy for you to choose the best fuel filter for 6.7 Cummins. These are replacement fuel filters, which means you take the old one out and put one of these in.
The Mopar filter kit comes as a combination of two units: one is the fuel filter which goes under the hood of your Ram 2500/3500 truck while the other goes in the rear of the truck. The latter is a water separator. The kit is compatible with Ram 2500 and Ram 3500 trucks made with the model years 2013 - 2016.
The filter kit is covered by a standard Mopar warranty (2-year/unlimited mileage) but check with the seller before purchasing. The two-stage system further ensures that the diesel in your truck's 6.7 Cummins engine has no foreign particles, and therefore allows the truck to produce optimum power and torque.
Since this is a factory-spec product, there are fewer chances of it going wrong. Having said that, we do have to tell you that it's not going to be an outright performance miracle. It'll ensure the engine uses cleaner diesel, but that's all.
Before getting the parts fitted, make a point of checking whether the kit's original. You can look for Mopar branding on both filters and check the product codes as well. We say this because users have complained of getting the wrong parts from Amazon. That's unlikely to happen from a trusted seller, but if it does, return the product.
At roughly the half price of what you'd pay to buy a Mopar Fuel Filter + Water Separator kit is the iFJF Fuel Filter and Water Separator combination. It's compatible with 2013 - 2017 6.7 Cummins trucks like the Ram 2500 and Ram 3500.
As we mentioned in the first review on this page, the fuel filter goes under the hood and the water separator goes near the fuel filler/in the rear section of the truck. iFJF's fuel filter is a 5-micron filter that can restrict up to 98 percent of impurities.
There's no warranty information offered by the manufacturer, so if you decide to save some money and get this instead of the factory replacement, check with the Amazon seller about its warranty.
Despite the lower price (which makes this a great value), it's hard to put the iFJF fuel filter + separator at the top of the list because there's no warranty information. Users have been largely okay with the purchase, though.
If you want to replace the under-the-hood fuel filter of your Dodge Ram 2500/Ram 3500, then WIX offers a replacement filter. It's not the cheapest out there among aftermarket ones, but it comes from a trusted brand.
Compatible with 2010 - 2012 trucks
The filter is compatible with the 6.7 Cummins Dodge Ram pick-up trucks (Ram 2500/3500/4500/5500) with the model years 2010 - 2012. Get in touch with the seller for more details about the compatibility. WIX's filter for 6.7 Cummins is a cartridge fuel metal-free filter, it has a synthetic blend medium, and comes with an O-ring gasket.
By the looks of it, this looks like a cost-effective stock replacement filter, but there are a few things that must be checked before you purchase it. Firstly, there is no warranty information about the filter. Secondly, the micron data isn't present from WIX. The micron data essentially indicates how small a particle can the filter let through. Ram's data suggests 5 microns (and a further 3 micron on newer trucks), the former as also mentioned by iFJF.
Made for the 6.7 Cummins trucks (Dodge Ram 2500/3500/4500/5500), the factory replacement Cummins Fuel Filter is compatible with 2010 - 2013 trucks
It comes backed with a 12-month warranty and is a straight OEM fitment. In comparison to other products, this isn't overly expensive. Users have also noted that this might not work with the newer trucks which require an additional layer of filter (3 microns) for the under-the-hood filters. So please check with the seller beforehand about the compatibility.
This is the original part that comes from the factory, so not only is it bound to offer the same performance as the stock filter, you can be confident about its ability to filter fuel as well. Given that it's only a little more expensive than the other aftermarket replacements, it's hard to not recommend this.
Fleetguard makes filters for Cummins under the Cummins Filtration brand. The FS43257 featured here is one way of replacing the Mopar filter with something just as dependable, made by a brand that makes factory filters.
It's compatible with the 6.7 Cummins trucks (Dodge Ram 2500/3500/4500/5500) made with the model years 2007 - 2009. The package includes the complete filter (both the shell and the cartridge) but for future replacements, you can reuse this shell.
The filter offers a good flow and proves to be a great stock replacement to the standard filter. The seller mentions the product can be returned if there's a manufacturing defect, but please check for the warranty.
Final thoughts on the best fuel filters for 6.7 Cummins
It's easy to choose something like the Mopar-branded kit because it's the standard fitment. So you pretty much know what to expect. The promises to do exactly all that but at half the price, but without warranty info (check with the seller), it's hard to recommend it as easily as the Mopar. The is the under-the-hood filter replacement, and is another solid option, although check with the seller about the specs (mainly about the particle permeability - in microns). If that doesn't match your Dodge's requirements, then you shouldn't buy it. The Cummins filter is a straight factory replacement whereas, with the Fleetguard model , you can introduce your truck to a high-quality brand. Its outer shell is reusable, so in the future when the time comes to upgrade, you only need to replace the filter within.
To be sure of your purchase, don't forget to check with the seller about other important things like compatibility, warranty, and originality of the product.
Tips on fuel filter maintenance and choosing replacements
Having a good fuel filter is essential if you want your truck to perform well and have a long life as well. You should stick close to the manufacturer-recommended intervals (generally about 10,000 miles) for the best performance. But if you feel a drop in performance before that, it's always a good idea to check the filter. It's also recommended to change both filters at the same time.
Another thing that you shouldn't forget is the manufacturer-specified requirements for the filter. Since new trucks come with finer filters that won't let the smaller foreign particles pass through, you need to avoid using filters made for older trucks on the new ones.
