Great Way to Test 6.0 Fuel Pressure to Keep the Fuel Pressure Up to Save Your Injectors or Test for Performance Issues! This fitting has an OEM 1/4 inch Schrader connection which is the most common connection size for almost any fuel pressure test kit（works on Ford 6.0L diesel engine 2003 2004 2005 2006 2007 2008 2009 2010 ） High quality Brass material has excellent mechanical and physical properties, nice fit and durable It is suggested to check fuel pressure any time new injectors are installed Low Fuel Pressure is one cause of premature 6.0L injector failure- adapter makes checking fuel pressure easily .
