How to Remove 6.7 Cummins Oil Filter: Step-by-Step Guide

James Raffy

posted on 2 hours ago — updated on 1 second ago

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Learn how the 6.7 Cummins oil filter Fleetguard protects your engine by trapping contaminants, sludge, and metal particles for optimal diesel performance.

The 6.7 Cummins engine is a workhorse trusted by thousands of truck owners for its durability, power, and longevity. However, like all diesel engines, it requires regular maintenance to stay in top shape. One essential part of that routine is changing the oil filter. Whether you’re a weekend warrior or a full-time diesel driver, knowing how to remove the 6.7 Cummins oil filter is a valuable skill that can save you time and money.

In this guide, we’ll walk you through the full process of oil filter removal, why it matters, and the tools you need to do it right the first time.

Why Replacing Your Oil Filter Matters

The 6.7 Cummins oil filter Fleetguard plays a crucial role in protecting the engine’s internal components. It traps contaminants, sludge, and metal particles, preventing them from circulating through the engine.. Over time, the filter becomes saturated, reducing oil flow and effectiveness. Neglecting oil filter replacement can lead to:

Engine wear or damage
Reduced fuel efficiency
Decreased engine performance
Shorter engine life

That’s why knowing how to remove and replace your 6.7 Cummins oil filter is so important. It’s not just about clean oil—it's about long-term engine health.

Tools You’ll Need

Before you begin, gather the following tools to make the job smoother:

Oil filter wrench or cap-type filter socket
Socket wrench with extension (10mm for skid plate bolts if needed)
Oil catch pan
Gloves and rags
New Mopar oil filter for 6.7 Cummins
Funnel
Diesel-rated engine oil

How to Remove 6.7 Cummins Oil Filter: Step-by-Step

Step 1: Warm Up the Engine (Optional)

Start the engine and let it run for about 3–5 minutes. This warms the oil and allows it to flow out more easily during the drain process.

Step 2: Locate the Oil Filter

On the 6.7 Cummins, the oil filter is typically located on the passenger side of the engine, near the front and below the turbocharger. If your truck has a skid plate, remove it using a 10mm socket.

Step 3: Drain the Oil

Place your oil catch pan underneath the oil drain plug. Use a socket wrench to remove the plug and allow the old oil to drain completely. While the oil is draining, you can prep for filter removal.

Step 4: Remove the Oil Filter

This is where it can get tricky due to tight clearances. Use an oil filter wrench or a cap-type socket attached to a ratchet and extension to unscrew the oil filter. Turn it counterclockwise until it's loose enough to spin off by hand.

Pro tip: Be careful—oil will spill from the filter, so make sure your catch pan is positioned correctly.

Step 5: Clean the Mounting Surface

Use a clean rag to wipe the oil filter mounting surface. Make sure the old gasket didn’t stick to the engine block.

Replacing the Oil Filter (Bonus Step)

While this post focuses on removal, it’s worth mentioning what comes next. Take your new Mopar oil filter, apply a light coat of fresh oil to the rubber gasket, and install it hand-tight. Don't over tighten—snug is enough.

Why Use a Mopar Oil Filter for 6.7 Cummins?

Choosing the right filter is as important as changing it. Mopar oil filters are specifically engineered for 6.7 Cummins engines and offer:

OEM-grade fit and performance
Superior filtration to trap contaminants
Extended durability under heavy-duty use
Guaranteed compatibility with engine specs

Using a genuine Mopar oil filter ensures your engine gets the protection it needs for long-term reliability.

Key Benefits of Doing It Yourself

Changing your own oil filter can:

Save you $100 or more in labor costs
Give you better control over the parts and oil used
Help you spot early signs of wear or leaks
Build your confidence in basic truck maintenance

Conclusion

Knowing how to remove the 6.7 Cummins oil filter gives you a leg up in maintaining your diesel truck. With the right tools, a bit of patience, and a reliable Mopar oil filter, you can ensure your engine stays protected and performs at its best. Whether you're a seasoned DIY mechanic or a first-timer, this simple maintenance task goes a long way in extending the life of your truck.