Cummins Engine Model QSG12 Home › Forums › Equipment › Cummins Engine Model QSG12 This topic contains 0 replies, has 1 voice, and was last updated by Timothy Taylor 1 year ago. Viewing 1 post (of 1 total) Author Posts October 24, 2017 at 9:25 AM #4668 Timothy TaylorParticipant Looking at the 2018 T4 280 w/475hp. Any word on performance issues? Attachments:You must be logged in to view attached files. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.