CCV PCV Reroute Kit

1. What is the CCV system for diesel trucks?

For diesel truck owners, understanding the factory Crankcase Ventilation (CCV) system is essential to maintain performance, reduce emissions, and avoid long-term damage.

Whether you own a 2020 Ford F250 6.7 Powerstroke or a 2017 Chevrolet Silverado 3500HD with a 6.6L Duramax L5P, the CCV system plays a key role in managing engine pressure and controlling oil vapor from crankcase blow-by gases.

Let’s take a closer look at the major components of a factory (OEM) CCV system:

1.1 CCV Filter

The CCV filter captures oil mist and microscopic particles from the crankcase gases. On trucks like the 6.7 Cummins (2019 RAM 2500), this filter is mounted on top of the valve cover and needs to be replaced every 67,500 miles to maintain efficiency and prevent oil saturation.

1.2 Oil Separator

Found in models such as the 2015 Ford F350 6.7L Powerstroke, the oil separator is often built into the valve cover. It uses baffles or mesh to physically separate oil droplets from gases. The oil drains back to the oil pan, while cleaned vapors continue into the intake.

1.3 CCV Valve / Pressure Control Valve

Also known as the PCV valve, this part regulates crankcase pressure. In engines like the 6.0 Powerstroke, the CCV valve helps prevent excess pressure that could cause oil leaks, or too much vacuum that can draw contaminants into the system.

1.4 Ventilation Hoses

These connect the crankcase, filter, and intake system. In the 2016 Ford F250 6.7 Powerstroke, the hose routing is engineered to move filtered vapors back to the turbo inlet, maintaining a closed system to comply with EPA emissions standards.

Although the CCV system is designed with emissions and pressure control in mind, it can become a liability over time. Diesel truck owners often face problems like clogged CCV filters, oil build-up in the intake, and reduced performance. That’s why many eventually choose to upgrade or bypass the system using a CCV delete kit or reroute solution.

2. Why Should You Upgrade or Delete Your CCV System?

Over time, the factory CCV system on diesel trucks like the 6.7 Cummins, 6.0 Powerstroke, or 6.6L Duramax often becomes a source of performance inefficiencies and maintenance headaches.

2.1 How a 6.7 Cummins CCV Filter Causes Intake Oil Build-Up and Pressure Issues

The primary purpose of the OEM CCV system is to control crankcase pressure and redirect blow-by gases—including oil vapor—back into the intake system to meet emissions standards. However, this process introduces several long-term issues that make a strong case for upgrading or deleting the system altogether.

As oil vapors cycle through the intake, they gradually accumulate along the intercooler piping, intake valves, MAP and IAT sensors, and even the turbocharger. This oil film reduces intake efficiency, raises exhaust gas temperatures, and contributes to carbon buildup, especially in engines equipped with EGR systems.

The CCV filter itself becomes saturated over time—especially in models like the 6.7 Cummins, which requires filter replacement roughly every 67,500 miles—leading to increased crankcase pressure, oil seepage from gaskets, and even compromised turbo seals.

2.2 A CCV Delete Kit Eliminates Oil Recirculation

Replacing the OEM system with a CCV delete kit or CCV reroute kit removes the oil vapor loop entirely. Instead of recycling oil-laden gases, these kits reroute or vent the crankcase through a sealed catch can or breather, capturing contaminants before they reach the intake.

This modification significantly reduces the risk of oil pooling in the intercooler, minimizes sensor fouling, and improves air-fuel efficiency. On average, catch cans in a CCV delete system can collect between 3–6 ounces of oil every 3,000 miles, depending on driving conditions and engine wear.

The result is a cleaner intake tract, improved combustion efficiency, fewer emissions-related maintenance issues, and a more stable crankcase pressure environment. For performance builds or high-mileage trucks, the long-term gains in engine cleanliness, reduced EGTs, and component longevity make a CCV delete a highly practical upgrade.

3. What’s Included in a CCV Delete Kit, and What OEM Parts Does It Replace?

Upgrading to a CCV delete kit isn’t just about adding an aftermarket component—it’s about completely replacing and improving several factory-installed parts. These kits are designed to simplify the crankcase ventilation system, reduce maintenance, and eliminate the downsides of recirculated oil vapor.

Here’s a breakdown of what you typically get in a quality CCV delete kit—and which OEM components they’re designed to replace:

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3.1 CCV Delete Kit Components

Most SPELAB CCV delete kits (including for the 2011–2024 Ford 6.7 Powerstroke and 2017–2024 L5P Duramax) include the following parts:

• Billet CCV cover or sealed plate
  Replaces the factory CCV filter housing or valve cover vent port.

• Catch can with internal baffling (optional in some kits)
  Collects oil mist from blow-by gases before they exit the system.

• Reinforced silicone or braided ventilation hoses
  Routes gases to a new exit point, often via atmosphere or catch can.

• Mounting hardware and brackets
  For secure installation of the catch can and rerouted hose system.

• Breather or filter element
  Allows pressure release to atmosphere in open systems, where permitted.

3.2 OEM Parts Replaced or Bypassed

Depending on your engine—such as the 2008–2010 Ford 6.4L Powerstroke—some components are fully integrated into the valve cover, requiring the delete kit to bypass the entire OEM configuration through external routing and block-off elements.

4. CCV Delete/ CCV Upgrade Kit Pros And Cons

A CCV delete kit or CCV upgrade system is more than just a hardware swap—it's a targeted solution designed to resolve long-term issues caused by the stock crankcase ventilation system on diesel trucks like the 6.7 Cummins, 6.6L Duramax, and 6.0 Powerstroke.

4.1 Pros: Why It’s a Smart Upgrade

1. Stops Oil Contamination in the Intake System
The factory CCV system routes oil-laden blow-by gases back into the intake. Over time, this results in oil buildup in the intercooler piping, turbocharger, and intake valves. Deleting or rerouting this system eliminates this contamination, especially on trucks like the 2017 RAM 2500 6.7 Cummins, where oil pooling inside the intercooler is a common issue.

2. Prevents Crankcase Overpressure
Saturated OEM CCV filters—like the one used on the 6.7 Cummins CV52001—can cause internal pressure to rise. This leads to oil seepage from seals and potential turbo damage. A CCV delete stabilizes crankcase pressure, reducing wear on internal components.

3. Simplifies Maintenance
No more replacing filters every 67,500 miles. Instead, catch can-equipped systems just need occasional draining. On average, a catch can on a 2019 Ford 6.7 Powerstroke captures 3–6 ounces of oil every 3,000–5,000 miles, depending on driving style and engine wear.

4. Improves Combustion and Airflow
By eliminating oil vapor from the intake, combustion becomes more efficient. Users report improved throttle response, reduced EGTs, and more stable boost levels—especially in tuned setups or heavy towing conditions.

5. Cleaner Engine Bay, Fewer Emissions-Related Issues
Less oil circulating through the intake means cleaner sensors (MAP, IAT), fewer carbon deposits, and lower chances of triggering check engine lights due to oily residue.

4.2 Cons: What You Should Be Aware Of

1. Not Legal for On-Road Use in All States
In some regions, deleting any emissions-related equipment—including CCV systems—is not road legal. These kits are typically intended for off-road or race applications only.

2. Installation May Require Moderate Mechanical Knowledge
Depending on your engine—such as the 2008–2010 Ford 6.4L Powerstroke—some installs involve removing valve cover vents or rerouting hoses in tight engine bays. While bolt-on, it’s not always beginner-friendly.

3. Catch Can Maintenance Still Required
Though filter replacements are eliminated, catch cans still need to be checked and drained regularly to avoid overflow and pressure issues.

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SPELAB testing and customer data have shown that properly installed CCV delete kits can eliminate up to 100% of intake oil contamination, lower exhaust gas temperatures under load, and help extend turbo and EGR component life. For high-mileage diesel owners or performance-focused builds, the tradeoff is overwhelmingly in favor of the upgrade.

5. CCV Delete Kit Fitment Guide: Powerstroke, Cummins & Duramax

Before purchasing a CCV delete kit, it's essential to verify that the system is compatible with your specific truck model, engine configuration, and production year. SPELAB offers a wide range of CCV delete and upgrade kits engineered to fit the most popular diesel platforms, including 6.7 Cummins, 6.0 & 6.4 Powerstroke, and LML/L5P Duramax engines.

Here’s a comprehensive fitment guide to help you find the right kit for your truck:

5.1 Supported Vehicle engines

5.2 Kit Compatibility Tips

• 6.7 Cummins CCV filter change is straightforward with SPELAB kits, which eliminate the need to replace the CV52001 filter and allow for catch-can installation or breather reroute.

• 2011+ Ford 6.7 Powerstroke CCV delete kits are often bolt-on and require minimal modification, with direct fitment to OEM locations.

• 6.4 Powerstroke owners may need to access the valve cover for proper block-off installation, due to the integrated design of the factory oil separator.

• For Duramax L5P models, verify whether your intake routing has been modified or tuned, as certain catch can placements may vary by application.

6. How to Install a 6.0 Powerstroke CCV Reroute Kit

If you're running a 2003–2007 Ford F250 or F350 Super Duty with the 6.0L Powerstroke, installing a CCV reroute kit is a smart upgrade to reduce oil vapor recirculation, protect your turbocharger, and keep your intake system cleaner. Unlike the more complex CCV systems on newer trucks, the 6.0 Powerstroke uses a simpler crankcase vent system that dumps blow-by gases directly into the intake tract before the turbo—leading to oily intercooler piping, carbon buildup, and reduced performance over time.

The good news? Installing a 6.0 Powerstroke CCV reroute kit is straightforward and can be done with basic tools in under two hours.

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6.1 Estimated Installation Time and Cost

• Time required: 1 to 1.5 hours

• Tools needed: Flathead screwdriver, socket set (8mm/10mm), hose cutter, pliers

• DIY cost: ~$60–$120 depending on the kit style (open breather or catch can)

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6.2 Installation Steps (2003–2007 Ford 6.0 Powerstroke)

Step 1: Locate the CCV Vent Tube
Pop the hood and remove the engine cover. You'll find the stock CCV vent hose connected to the passenger-side valve cover and routed into the intake tube leading to the turbo.

Step 2: Disconnect and Remove the OEM Hose
Use pliers or a flathead screwdriver to loosen the hose clamps. Remove the OEM breather hose from the valve cover and intake.

Step 3: Plug or Cap the Intake Port
Install the rubber or billet plug included in the SPELAB CCV reroute kit to seal off the port on the intake tube. This prevents unfiltered air from entering the turbo once the reroute is complete.

Step 4: Install the Reroute Hose or Breather Filter
Attach the included reroute hose to the valve cover port and either route it downward toward the frame (for open venting) or connect it to a catch can system if your kit includes one. Secure the hose with clamps.

Step 5: Mount the Catch Can (Optional)
If you're using a 6.0 Powerstroke CCV reroute kit with catch can, mount it on the firewall or inner fender. Ensure it’s upright and easily accessible for draining.

Step 6: Double Check and Test
Start the engine and let it idle for 5–10 minutes. Watch for any signs of oil leaks, pressure buildup, or abnormal engine noise. Confirm that the new breather path is venting correctly.

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6.3 Notes for This Model

• The 6.0L Powerstroke CCV system is simpler than newer platforms, making rerouting an easy upgrade even for DIY users.

• Make sure to check local regulations if venting to atmosphere, as open systems may not be emissions compliant.

• Adding a small breather filter to the end of the reroute hose helps prevent dust from entering in rare reverse-flow situations.

• No tune or calibration is needed after installing the CCV reroute kit.

7. Other Supporting Parts (Beyond the CCV Delete Kit)

In addition to CCV delete kits, this product collection page also includes several supporting components that enhance system reliability, improve cooling efficiency, or address known weak points in diesel platforms like the 6.7L Powerstroke, 6.4L Powerstroke, and 6.6L Duramax. These parts are often installed alongside or in preparation for a CCV system upgrade.

Here’s a quick breakdown of what else is offered:

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7.1 Coolant Bypass Kit

A popular add-on for trucks like the 2017–2024 L5P Duramax Silverado 2500 HD, this kit helps reduce coolant pressure on the rear cylinders, where hotspots typically occur. It provides a secondary return path for coolant, improving heat distribution and helping protect head gaskets under heavy load or towing.

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7.2 Coolant Hose Barb Adapter Leaking Repair Kit

Specific to platforms where coolant hose barbs are prone to leaking—such as the 2008–2010 Ford 6.4L Powerstroke—this kit provides a reliable replacement to eliminate coolant seepage, particularly around aging plastic fittings or corroded metal joints. Often used as a preventative upgrade during cooling system overhauls.

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7.3 CCV Delete Kit + Catch Can Internal

Some kits on this page bundle an internal baffled catch can with the CCV delete system, offering superior oil vapor separation. These are especially useful for 2011–2024 Ford F250 6.7L Powerstroke owners who want to avoid rerouting vapor to atmosphere and maintain a cleaner, more closed-loop design.

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7.4 Use Case Integration

All of these products are fully compatible with SPELAB’s core CCV delete solutions and are frequently purchased together to create a more reliable, longer-lasting engine system. Whether you’re deleting the CCV, replacing worn hoses, or improving coolant circulation, these additional parts offer excellent synergy.

8. Top 5 CCV Combo Recommendations

For diesel owners who are serious about performance, longevity, and reducing maintenance headaches, pairing a CCV delete kit with other key upgrades can unlock even more value.

Here are five proven CCV upgrade combos recommended by the SPELAB team and trusted by diesel enthusiasts:

8.1 CCV Delete Kit + EGR Delete Kit

Why it works:
Both the CCV and EGR systems contribute to intake contamination. Oil mist from the CCV and carbon from the EGR mix into thick deposits on your intake valves and sensors.

Benefits:

• Up to 95% reduction in intake buildup

• Lower exhaust gas temperatures

• Smoother throttle response
  Best for: Heavy towing, high-mileage diesels

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8.2 CCV Delete + ECU Tuner

Why it works:
Deleting the CCV system allows for cleaner airflow. Pairing that with a tune optimizes fuel delivery and boost management.

Benefits:

• More horsepower and torque

• Better turbo spool-up

• Reduced soot generation in closed systems
  Best for: Tuned daily drivers or weekend builds

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8.3 CCV Delete + Upgraded Intake Elbow

Why it works:
Once the CCV system stops contaminating the intake, upgrading the elbow further increases clean air delivery.

Benefits:

• Improved airflow efficiency

• Cooler intake temps

• Cleaner combustion
  Best for: Any truck using a catch can or open breather system

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8.4 CCV Delete + Catch Can + High-Flow Air Filter

Why it works:
Catch cans separate oil mist, while a high-flow air filter ensures that only clean air enters the engine.

Benefits:

• Nearly 100% oil vapor removal

• Improved filtration over OEM systems

• Less sensor fouling
  Best for: 6.7 Cummins and 6.7 Powerstroke platforms with frequent stop-start driving

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8.5 CCV Delete + Coolant Bypass Kit

Why it works:
As you push your engine harder, managing both air and coolant is key. This combo improves pressure regulation and temperature balance.

Benefits:

• Reduced rear-cylinder hotspots

• Protects head gaskets

• Balanced coolant flow
  Best for: Long-haul, lifted trucks or tuned builds in hot climates