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phone: 270-618-5200
Mercury and Mariner Outboard Thermostats 
 
HP Year Thermostat Water Pump Kit
50-60 HP 3 Cyl 1991-1997 JE-T41 (143°) / ME-T86 (120°)  
70-90 HP 3 Cyl 1987-2006 JE-T41 (143°) / ME-T86 (120°) FM-302
100-125 HP 4 Cyl 1988-2006 JE-T41 (143°) / ME-T86 (120°) FM-302
135/150 HP V6 2.0L 1984-2001 JE-T41 (143°) ME-618
150XR4 175/200 HP V6 2.4L 1983-1990 JE-T41 (143°) ME-618
150 EFI-200 HP V6 2.5L 1991-2005 JE-T41 (143°) ME-618
225/250 HP V6 3.0L 1994-2001 JE-T41 (143°) FM-302