Product Description: 1. Fitment: Perfectly fits for 2003-2010 Ford 6.0L Diesel Engines. 2. 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. 3. Features: This fitting with 1/4 Inch OEM Shrader connection fits almost any fuel pressure tester. 4. Application: This proper fitting will help you easily connect a standard fuel pressure gauge to the 6.0L Ford Powerstroke Diesel. .