M10-1.25 thread adapter with quick disconnect screws into the head of the engine in the glow plug hole.
Works on GM Duramax 6.6L Turbo Diesel (2005-present).D26
WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.