Sierra International TS26621 240 Degree Marine Temperature Sender with NPT Thread & Terminal Type 10-32 Stud, Size 3/8-18 Sierra TS26621 240 degree, marine temperature sender with npt thread size 3/8-18; terminal type: 10-32 stud Before ordering, please verify this is the correct part for your application. For assistance, please call sierra's Tech support at 1-877-663-8396 All sierra Parts qualify for and are covered under sierra's industry leading customer satisfaction warranty