Diesel Crankcase Filter & CCV Filter

Why Does Your Cummins Need a Crankcase Filter Replacement?

A Clogged Crankcase Breather Builds Dangerous Pressure

The closed crankcase ventilation filter is designed to trap oil vapor, but it saturates over time. Once clogged, crankcase pressure spikes and has to escape somewhere: past the rear main seal, the valve cover gaskets, or the dipstick tube. That is why a clogged crankcase breather almost always shows up first as mysterious oil leaks on an otherwise healthy 6.7 Cummins.

Saturated Filters Send Oil Into Your Intake

When the ccv diesel filter can no longer separate oil from air, that oil mist travels straight into the turbo compressor and intercooler. The result is an oil-soaked intake tract, reduced intercooler efficiency, and a turbo ingesting oil it was never designed to handle. Ram 6.7 owners doing this service are routinely shocked by how much oil the old filter had been passing.

Neglect Turns a Cheap Filter Into an Expensive Repair

The crankcase filter is one of the least expensive service items on a diesel, yet skipping it leads to blown seals, fouled intakes, and on the 6.7 Cummins, oil pooling in the charge air cooler. Owners searching for crankcase filter 6.7 cummins 2016 or ram 2500 crankcase filter are usually already seeing symptoms; replacing the filter now stops the damage from compounding.

What Can a New CCV Filter Solve?

Restores Proper Crankcase Pressure

A fresh closed crankcase ventilation filter gives blow-by gases a clean, unrestricted path through the factory breather system. Pressure returns to normal, oil stays where it belongs, and leaks from the crankcase breather area stop. This is the direct fix for a crankcase breather leaking oil.

Protects the Turbo and Intercooler

High-efficiency filtration media captures oil mist before it enters the intake stream, keeping the compressor wheel dry and the intercooler fins clean. That preserves boost efficiency and extends the life of expensive components upstream of the motor.

Complete Ventilation Assemblies, Not Just Elements

Beyond replacement filter elements, this collection includes complete crankcase ventilation and CCV with EGR throttle valve arrangements for 2007.5-2018 Rams, plus coverage for commercial 15.0L ISX engines. Whatever breather problem your Cummins has, the replacement path is here.

Shop Crankcase Filter by Engine & Fitment Guide

• CCV Crankcase Ventilation & EGR Throttle Valve (2007.5-2018), complete ventilation and throttle valve arrangement for 6.7L Cummins Dodge Ram 2500 3500.
• Crankcase Ventilation CCV Filter (2007-2018), replacement ccv filter for 6.7L Cummins Dodge Ram 2500 3500 diesel trucks.
• CCV Crankcase Ventilation Diesel Kit (2007.5-2018), full crankcase ventilation kit for 6.7L Cummins Dodge 2500 3500.
• Crankcase Ventilation Filter (2010-2012), crankcase filter for the 15.0L Cummins ISX commercial diesel.
• Crankcase Breather Filter (2008-2021), breather filter for the 6.7L Cummins ISB in Dodge Ram 2500 3500.

Why Choose EGR Performance?

The industry standard for high-performance diesel reliability.

Premium Quality & Rigorous Testing

Our EGR, DPF, and CCV delete kits are engineered from premium-grade materials and subjected to brutal quality control and field testing. Unlike generic alternatives, our products are built to withstand extreme heat and pressure, delivering unmatched durability and long-term stability when your rig needs it most.

20 Years of Proven Diesel Expertise

We aren't just selling parts, we live this industry. With two decades of hands-on experience providing specialized modification solutions for heavy-duty truck owners, our upgrades have been extensively proven across every driving environment, from daily towing to high-performance tracks.

Industry-Leading Standards

We work hand-in-hand with top-tier industry partners and reputable organizations. Every product we design, test, and ship meets or exceeds strict industry standards, ensuring your Powerstroke, Cummins, or Duramax gets the exact precision it deserves.

Real Results, Proven Track Record

Thousands of diesel owners trust us to unlock their engine's true potential. Our massive library of positive customer feedback and successful build case studies proves one thing: our kits deliver real horsepower, lower EGTs, and flawless reliability in the real world.

Frequently Asked Questions

What does a crankcase filter do on a diesel engine?

The crankcase filter, also called the CCV filter or closed crankcase ventilation filter, captures oil mist from blow-by gases inside the crankcase before the vapor is routed back into the intake.

Without it, oil would coat the turbo, intercooler, and intake manifold. On engines like the 6.7 Cummins it is a scheduled maintenance item that directly protects your entire intake system.

How often should I change the crankcase filter on a 6.7 Cummins?

On the 6.7 Cummins most owners replace the crankcase filter every 60,000 to 100,000 miles under normal driving.

If you tow heavy, idle extensively, or run a tuned truck, the filter saturates faster, so inspecting it at every oil change from 50,000 miles is smart. Changing the crankcase filter on a 6.7 Cummins is a simple job on the valve cover breather assembly.

What are the symptoms of a clogged crankcase breather?

The classic signs are oil leaks around the valve cover or rear main seal, a dipstick that pops up or blows out, oil residue in the intake boots, and increased oil consumption.

A clogged crankcase breather can also cause rough running on some engines because the excess pressure disrupts the ventilation system. If you see several of these symptoms together, the CCV filter is the first thing to check.

Will this crankcase filter fit my Ram 2500?

We carry crankcase filters and ventilation parts for Ram 2500 and Ram 3500 trucks with the 6.7 Cummins from 2007 through 2018, plus an ISB breather filter covering 2008-2021 trucks.

The breather assemblies differ between generations, so match your build year to the listing. If you are unsure, send our support team your VIN and we will confirm the correct filter.

Can a clogged CCV filter cause oil leaks on a 6.7 Cummins?

Yes. On the 6.7 Cummins, a saturated CCV filter blocks the ventilation path and crankcase pressure forces oil past seals and gaskets.

Many Ram owners chasing "mystery" valve cover leaks find that replacing the crankcase vent filter solves the problem. It is one of the cheapest repairs for one of the most misdiagnosed leak sources.

Is a CCV filter the same as a PCV valve?

They serve a related purpose but work differently. A gasoline engine's PCV valve is a metering valve that regulates flow, while a diesel CCV filter is a filtration element that separates oil from crankcase vapor.

Diesels like the Cummins use a closed crankcase ventilation system with a filter element rather than a simple PCV valve, which is why the part is called a crankcase filter or CCV filter.

Can I clean and reuse a crankcase breather filter?

Most crankcase breather filters on these engines are designed as disposable elements. Once the media is saturated with oil it cannot be effectively cleaned, and washing can damage the filter material.

Replacement is inexpensive and restores full flow immediately, so we recommend fitting a new CCV filter rather than attempting to reuse a loaded one.

How do I change the crankcase filter on a 6.7 Cummins?

On most 6.7 Cummins trucks the CCV filter sits in the breather assembly on top of the engine. You remove the cover or cap, pull out the old element, clean the housing, seat the new filter, and reinstall the cap.

It is typically a 15 to 30 minute job with basic hand tools. Avoid overtightening the cap, and check the sealing o-ring is properly seated before closing up.

Do you carry crankcase filters for the Cummins ISX and ISB?

Yes. This collection includes a crankcase ventilation filter for the 15.0L Cummins ISX (2010-2012) and a crankcase breather filter for the 6.7L Cummins ISB covering 2008-2021 Ram 2500 3500 trucks.

Each listing states the exact engine and year range, so match your application before ordering or contact support with your engine serial number for confirmation.

What is your return policy and warranty on crankcase filters?

EGR Performance offers 45-day worry-free returns and a one-year warranty on every crankcase and CCV filter we sell.

If the filter does not fit your truck or arrives with any defect, contact our support team for a replacement or refund. Free shipping applies to all orders.