PPE 114025010 Check Valve Crankcase Breather Filter Kit | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Fits 2004.5-2010 Duramax 6.6L diesel engines
• Prevents oil vapor from entering intake system
• Reduces risk of dangerous engine runaway
• Includes check valve for added safety
• Keeps turbo and intercooler free of oil residue
• Reduces internal crankcase pressure
• Minimizes oil misting and seal wear
• Improves engine reliability and longevity
• Meets NHRA racing safety requirements
• Ideal for tuned or performance diesel setups
• Helps maintain cleaner and more efficient airflow

Protect Your Build With Clean Performance Breathing

If you're running a 2004.5-2010 Duramax and want to protect your investment from the inside out, the PPE Check Valve Crankcase Breather Filter Kit is a simple yet powerful upgrade. This kit helps prevent one of the most dangerous diesel failures out there, engine runaway caused by oil vapor entering the intake. Not only does it stop that vapor in its tracks, but it also keeps your turbo, intercooler, and intake system free from oil residue that can build up over time. Cleaner airflow means better performance and fewer headaches down the road. Plus, the integrated check valve adds another layer of safety to ensure things only flow the way they’re supposed to. Whether you tow, daily drive, or hit the dirt, this filter kit adds peace of mind with every mile. And with NHRA-compliant specs, it’s ready for track use too.

Engineered To Control Vapor And Maintain Pressure Balance

The PPE 114025010 Check Valve Crankcase Breather Filter Kit is built specifically for 2004.5-2010 GM 6.6L Duramax engines, offering advanced crankcase ventilation and intake protection. It’s designed to filter out oil vapor that would otherwise re-enter the intake system and potentially trigger uncontrolled combustion events known as engine runaway. At the core of this system is a high-quality breather filter paired with a check valve, which allows pressure to vent safely while preventing reverse flow into the engine. By properly venting crankcase gases, the kit reduces internal pressure that can contribute to oil misting, leaking seals, and premature engine wear. It also helps maintain cleaner internal components such as the turbocharger and intercooler, supporting overall engine efficiency. This is especially important for performance-tuned applications where crankcase pressure can spike under load. Meeting NHRA safety requirements, this kit is a functional safety and maintenance upgrade designed with durability and diesel performance in mind.

Fits: 2004.5, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Designed for 2004.5-2010 GM 6.6L Duramax engines
• Helps prevent engine runaway caused by oil vapor
• Filters out oil vapor before it enters the intake
• Includes a built-in check valve for added safety
• Protects turbo, intercooler, and intake from contamination
• Reduces internal crankcase pressure and oil misting
• Helps prevent seal damage and oil leaks
• Improves engine reliability under daily and performance use
• Meets NHRA racing safety requirements
• Important upgrade for tuned or modified diesel engines