Fits: 2004.5 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY/LBZ/LMM Duramax Diesel 

PPE Crankcase Breather Repair Fittings are made from machined billet aluminum and replace stock composite plastic fittings. Composite plastic can become brittle and fail. These fittings allow you to repair your stock breather system. These fittings can be used with external filter/separators to eliminate engine oil contamination of your intake system.

DmaxStore Note: 

• Sold as a Pair