Application Fit for Ford/Navistar 6.0L & 6.4L Power Stroke 2003-2008, for International Harvester VT365 4200, for Navistar/International 6.0L VT365E. Use with Diesel Compression Tester TU-15. Function M14-1.25 thread adapter attached to a hose with quick disconnect screws into the head of the engine in the glow plug hole. Material Made from durable rubber and steel for rust and corrosion resistance. Carefully manufactured to ensure long term use. A Must-Have Tool This tool can meet your needs and get the job done right. Note: gauge is not included in the package. Satisfaction Guarantee .