Billet Crankcase PCV Vent Fitting Kit

Features:

• Fits 2004.5-2010 6.6L Duramax LLY/LBZ/LMM
• Replaces weak factory plastic fittings
• Includes two billet aluminum vent fittings
• CNC machined for a precise fit
• Features durable black anodized finish
• Includes o-ring seals for leak-free performance
• 5/8" hose barb connection included
• Made in the USA with quality materials
• Installs easily with no tuning required

Replace Weak Factory Fittings with Billet Strength

If you’ve owned a Duramax long enough, you’ve probably heard about the weak plastic crankcase vent fittings that sit on top of the valve covers. Over time, these factory parts can crack or leak, leaving you with a mess and potential performance issues. The Wehrli 100189 Billet Crankcase PCV Vent Fitting Kit is designed to solve that problem for good. Made specifically for 2004.5-2010 Silverado and Sierra 2500HD and 3500HD models with the LLY, LBZ, or LMM Duramax, this kit replaces those fragile plastic fittings with precision-machined billet aluminum pieces that are built to last. Finished in sleek black anodizing, these fittings not only improve durability but also clean up the look under the hood.

Precision Fit, Leak-Free Performance, and Easy Installation

Each fitting in this kit is CNC machined in the USA and includes o-ring seals to ensure a tight, leak-free connection. The 5/8-inch hose barb makes routing your crankcase ventilation system simple, whether you’re connecting to a catch can or another vent system. Best of all, there’s no tuning required, so you can install this kit and hit the road right away. It’s a small but important upgrade that protects your engine from future headaches while adding a professional finish to your build. If you’re looking to fix a common weak spot on your Duramax with a solution you’ll never have to worry about again, this billet vent fitting kit from WCFab is the way to go.

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