This version of the ThermoBob has a BSPP port for the included temperature sending unit, also includes the Trail Tech coolant temerature gauge. Especially useful primarily designed for the gen3 (2022 and later) KLR650. Select the option for the tach if you want one of those too. Comes with a template drawn by Tu Combs to help install. See the link below if you have a 1987-2018 KLR with the factory gauge cluster.