My Tracker , according to the sales person and prep team, said the mercury motor is the same for fresh or salt. They said all fasteners and cleats are stainless. They also said the wiring is no different than the 25' Mako. I asked then why do they sell a saltwater version of the nitro and tracker. Their reply was, only difference was one was carpeted and one was vinyl. I swapped the stock T/M for a salt water Minn Koto...