Description: This PPE Crankcase Breather Repair Fitting is a must - have for your 2001 - 2010 GMC HD Truck with a 6.6L Duramax engine. Made from machined billet aluminum, it replaces the stock composite plastic fittings that can become brittle and fail. These fittings let you repair your stock breather system and work with external filter/separators to prevent engine oil from contaminating your intake system. Key features include preventing engine runaway, easy installation, and being sold as a set of 2. Part Number: 114020000.

Using this crankcase breather fitting is easy. First, make sure your engine is off and cooled down. Remove the old, stock composite plastic fitting carefully. Then, install the new fitting in its place. It's designed for easy install, so you should be able to do it without much hassle. When using, keep in mind that it works with external filter/separators, so make sure those are properly connected. As for maintenance, regularly check the fitting for any signs of damage or wear. If you notice any issues, replace it promptly to keep your engine running smoothly and prevent oil contamination of the intake system.