PPE 114020000 PCV Crankcase Breather Repair Fitting Set | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Replaces brittle factory plastic PCV fittings
• Machined from billet aluminum for durability
• Restores function of crankcase breather system
• Supports use with external catch can systems
• Helps prevent oil from entering intake system
• Improves long-term reliability and engine cleanliness
• Compatible with LLY, LBZ, and LMM engines
• Corrosion-resistant construction for extended lifespan
• Simple drop-in solution with no tuning required
• Ideal for high-mileage or performance builds
• Prevents PCV leaks and potential drivability issues

Fix It Right The First Time With Billet Strength

If you're running a 2004.5-2010 Duramax, chances are your stock PCV fittings are getting a little tired. Those plastic connectors may have held up for a while, but time, heat, and crankcase pressure take their toll, and eventually, they crack or break, usually when it’s least convenient. That’s where the PPE Crankcase Breather Repair Fittings come in, crafted from solid billet aluminum to give your truck a durable, long-lasting upgrade. This is a smart fix whether you're chasing down a leak, building a cleaner engine bay, or setting your truck up with a catch can system. They slide right into place and hold tight, replacing those brittle stock pieces without any fuss. You’ll also be protecting your turbo and intake from oil vapor that sneaks in through a compromised PCV system. It’s a small investment that delivers big on long-term reliability, especially if your truck is a daily workhorse or sees a lot of hard miles.

Designed For Clean Operation And Lasting Reliability

The PPE 114020000 PCV Crankcase Breather Repair Fitting Set is engineered to replace the stock composite plastic connectors found on 2004.5-2010 GM 6.6L Duramax engines, including LLY, LBZ, and LMM configurations. These OEM-style plastic fittings are known to become brittle over time, leading to cracking, leaks, and unfiltered crankcase vapors entering the intake. PPE addresses this weak point by machining their fittings from high-grade billet aluminum, offering far better resistance to heat, pressure, and chemical exposure. These fittings are also fully compatible with external filter or catch can setups, making them ideal for performance builds or trucks aiming for cleaner intake tract operation. By routing oil vapor out of the intake system, you reduce carbon buildup on valves and improve overall engine efficiency. The kit installs easily and requires no tuning or custom modifications. It’s a straightforward solution for one of the more overlooked but critical components in your Duramax’s crankcase ventilation system.

Fits: 2004, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2004.5-2010 GM 6.6L Duramax LLY, LBZ, and LMM engines
• Replaces factory plastic fittings prone to cracking
• Ideal for trucks with high mileage or aging components
• Allows integration with external oil catch can systems
• Helps reduce oil contamination in the intake system
• Recommended when addressing PCV-related leaks or failures
• Not compatible with LB7 or LML engine variants
• Machined billet aluminum provides long-term durability
• Can be used in both stock and modified breather setups
• No tuning or electrical modifications required
• Designed as a repair or upgrade for the factory PCV setup