This is a diesel compression test adaptper made to be used on Duramax 2.8L. This includes Chevrolet Colorado: 2016.2019; Chevrolet Cruze: 2018-2019; Chevrolet
Equinox: 2018-2019; Chevrolet Express 2500 & 3500: 2017-2019; GMC
Canyon: 2016-2019; GMC Savana 2500 & 3500: 2017-2019; GMC Terrain:
2018-2019. This is made to be used with ATC4451 Diesel compression guage with hose.
