Sierra 18-5898 Water Temperature Sender for Mercruiser, Crusader, OMC Used on most types of marine applications on sterndrive and inboard engines. Fits MCMMIE engines Specifications Thread Size 12 or 12.7mm -14 NPT Terminal Type 10-32 stud Range 240 DS Sender Code D Interchangeable with Crusader 700427 Mallory 9-42401 Medallion A-2618-4 Mercruiser Stern Drive 34625 97258 97258A1 FI6900152 FI6900198 OMC Inboard 171960 OMC Stern Drive 171960 Stewart Warner 362BB-D Veethree Seastar 52320S017 Califo