Thermostats & Housings

Sierra 18-3609 Thermostat Kit for Yamaha 2-Stroke Outboards, OEM 6J8-12414-A0-00, 60 Degrees C

Sierra 18-3608 Thermostat Kit, Replaces 6J8-12414-A0-00, for Yamaha 2-Stroke Outboard Engines

Sierra 18-3557 143 Degree Marine Thermostat, White, Replaces Volvo Penta 21148403

Sierra 18-3556 Thermostat 130 Degree F for Chrysler/Force Outboards, Replaces F97068

Sierra Thermostat 18-3554, 143 Degree F, OMC Stern Drive Replacement, OE 383307

Sierra 18-3551 Marine Thermostat for 140 HP 6-Cylinder Engines, Replaces 1538930 1725960

Sierra Thermostat 130 Degree, Replaces 5001036, Fits Evinrude E200 E225 E250 & Johnson J200 J225 J250 Outboards

Sierra 18-3553 Brass Thermostat, 143 Degree F, Replaces Mercury 75692, Fits Mercury V135/V150

Sierra 18-3549 Thermostat, 120 Degree F, Replaces 803061T1, for Mercury 100/115/125 HP 4-Cylinder Outboards

Sierra Thermostat 18-3544, Replaces OEM 435491, for Evinrude and Johnson Outboards

Sierra Thermostat 18-3540, Replaces Yamaha 6E5-12411-30-00, Fits T60 and T9.9 Outboards

Sierra 18-3539 140 Degree Thermostat Kit for Closed Cooling Systems, Replaces 875779

Sierra 18-3536 Thermostat, 143 Degree F, Replaces Mercury Marine 833072

Sierra Thermostat 18-3525 for Yamaha 2-Stroke Outboards VZ200, V225, VZ250

Sierra 18-3535 Thermostat 130F, Replaces Mercury 885599004, Fits Mercury/Mariner 200/225/250 HP Outboards

Sierra Thermostat Housing 18-3531 for 7.4L 454 V-8 MIE Closed Cooling Engines, 1996-1997

Sierra 18-3500 Thermostat, 140 Degree F, Replaces 437090, Fits Evinrude E115/E135/E150/E175 Outboards

Sierra 18-2831-9 Thermostat Cover Gasket, Replaces 27-475901 and 27-47590, 4 Cylinder Engines, Pack of 2

Sierra 18-2732-9 Water Shutter, Replaces 60930, for Mercruiser Stern Drives - Pack of 2

Sierra 18-2733 Water Shutter, Replaces 92802 and 99370A2, Package of 2

Sierra Thermostat Cover Gasket 18-2554-9, Replaces 27-41812, Fits MCM/MIE GM V-6 & V-8 Engines - Pack of 2

Sierra 18-2553-9 Thermostat Cover Gasket - Pack of 2, Replaces Mercruiser 27-47510, Fits MCM/MIE GM V-6 & V-8 Engines

Sierra 18-1989K Thermostat Service Kit for 18-1989 Thermostat Housing