Thermostats & Housings

Sierra Thermostat 18-43017, Replaces Indmar S985009, Fits Mercruiser 496 Mag & HO, 8.1L MIE & HO, Pack of 2

Sierra Thermostat Kit 18-3677 for Volvo Penta Engines, 160 Degree F, Replaces 3856961-2

Sierra 18-3670 Thermostat Kit, 160 Degree F, Replaces GLM 13440, Fits Volvo Penta 2.5L & 3.0L (1982-88)

Sierra 18-3676 Thermostat Kit for OMC Sterndrive/Cobra 5.0L I/O Cooling Systems (1994-97)

Sierra 18-3550 140 Degree Thermostat, Replaces 2324347, MerCruiser 120/140/2.5L L4

Sierra 18-3561 Thermostat 105 Degree - Replaces 384719 - Fits Most 3 and 4 Cyl. Outboards 1985-90

Sierra 18-0398-9 Thermostat Gasket, Pack of 2, Replaces Mercruiser 27-33918 and OMC 385211

Sierra 18-2546-9 Thermostat Gasket for Johnson/Evinrude V6 Outboard Engines, OEM 321184, Pack of 2

Sierra 18-3667 Marine Thermostat Kit, 160 Degree, White, for Mercruiser Stern Drive

Sierra 18-3674 Thermostat Kit, Interchangeable with GLM 13280, for Johnson/Evinrude Outboards

Sierra Thermostat Kit 18-3568, 160 Degree F, MerCruiser Closed Cooling 7.4L 454 V-8, Replaces Mercruiser 99155T1

Sierra 18-3605 Thermostat Kit for Mercury 225/250 EFI Outboard Engines

Sierra 18-3662 Marine Thermostat Kit for Volvo Penta Stern Drive - Replaces Volvo 875794-0, 876305-4

Sierra 18-3687 Thermostat for Suzuki Outboard Engines

Sierra Thermostat Cover Gasket 18-0844, Replaces Yamaha 688-12414-A1-00

Ice Eater Thermostat KT16110, 120 Volt Adjustable, 0 to 80 Degree Range

Sierra 18-3673 Thermostat Kit for V-4 Crossflow Outboard Engines

Sierra 18-3543 143 Degree Thermostat, Replaces BRP 435491, Fits 200-235 HP Outboards

Sierra 143 Degree Marine Thermostat, Replaces 436195, Part Number 18-1507