FITMENT Perfectly fit for 2003-2010 Ford 6.0L diesel engine HIGH QUALITY High Quality CNC Machined from Brass with excellent mechanical and physical properties, this adapter fitting shows its high tightness, corrosion resistance and durability FEATURES This fitting with 1/4 Inch OEM Shrader connection fits almost any fuel pressure tester APPLICATION This proper fitting will help you easily connect a standard fuel pressure gauge to fit for 6.0L Ford Powerstroke Diesel 100% SATISFACTION GUARANTEE .