Sierra's 18-3551 Thermostat is used on all V-8 Chrysler engines with Rochester carburetors 1986 to present. It is interchangeable with Chrysler Inboard 4142885, Crusader 96319, GLM 13030, Mallory 9-43013, Mercruiser Stern Drive 32728, 35884, 59137, 59137A1, 67464, 8052731, 8072521, 807252T1, 8M0089715, Osco 143-DEG, and Pleasurecraft RO26002E. It features a temperature rating of 142°F. Each Sierra product meets or exceeds the original equipment part it replaces.