The 6.7 Cummins engine is built tough. It powers some of the most reliable diesel trucks on the road. But to keep it running smooth, you need clean fuel. That’s where the Mopar fuel filter 6.7 Cummins comes in.

Choosing the right filter isn’t just about fit. It’s about performance, protection, and peace of mind. Here's how to get it right.

1. Stick With OEM: Go Mopar

When it comes to fuel filters, not all are equal. The Mopar filters are designed specifically for the 6.7 Cummins diesel. It meets factory specs. That means a perfect fit and top-tier filtration.

Aftermarket filters may save you a few bucks. But they often fall short in quality. They can lead to leaks, poor fuel flow, or worse—engine damage.

2. Know Your Truck’s Year

Not all 6.7 Cummins fuel filters are the same. Ram trucks from different years may use different filter styles or part numbers.

For example:

• 2010–2018 models use a canister-style filter.
   

• 2019 and newer use a dual fuel filter system—one in the engine bay and one near the tank.
   

Always check your owner's manual or VIN before buying. Or use a fitment tool from a trusted retailer.

3. Look for Micron Ratings

The micron rating tells you how fine the filter is. The lower the number, the better the filtration.

Most Mopar diesel fuel filters offer a 3 to 5-micron rating. That’s enough to trap dirt, water, and even algae. Clean fuel helps your injectors last longer and your truck run smoother.

4. Water Separation Matters

Diesel fuel can carry water. And water in your fuel system is bad news.

The right fuel filter for 6.7 Cummins should include a water separator. Most Mopar filters do. Some also come with a water sensor port.

If you drive in cold or wet climates, this feature is a must-have.

5. Don’t Forget the Fuel Filter Kit

Some trucks need a full fuel filter replacement kit. These kits include both filters—one under the hood and one near the tank. They also come with O-rings and seals.

Buying the kit saves time and ensures everything is replaced correctly.

Conclusion

Choosing the right Mopar fuel filter for your 6.7 Cummins engine keeps your truck reliable and strong. Stick with OEM, check your truck’s year, and go for quality over price. Clean fuel is the first step toward long-lasting diesel performance.

Need to replace your filter soon? Go with Mopar. Your Cummins will thank you.

FAQs

1. How often should I change my Mopar fuel filter on a 6.7 Cummins?
Every 15,000 to 20,000 miles is recommended. Check your manual for your specific model.

2. Can I use an aftermarket filter instead of Mopar?
You can, but it’s risky. Mopar filters are made for exact fit and performance. Aftermarket ones may not protect as well.

3. What’s the part number for the Mopar fuel filter 6.7 Cummins?
It depends on the model year. Popular part numbers include 68197867AA and 68157291AA. Always double-check your fitment.

4. Does the Mopar fuel filter include a water separator?
Yes. Most models do. Some even have a drain valve and water sensor connection.

5. Is it hard to change the fuel filter on a 6.7 Cummins?
Not too hard if you have basic tools and a little know-how. But if you’re unsure, a quick trip to a diesel mechanic can save time and hassle.