Indmar Marine Thermostat Housing Gasket | Part #551004 A small part that does a critical job — this genuine Indmar thermostat housing gasket seals the thermostat housing to the engine block, preventing coolant leaks at one of the most heat-stressed joints in the cooling system. Always replace this gasket any time the thermostat housing is removed — never reuse an old gasket. Compatible with: Indmar marine engines
Indmar Marine Water Pump Circulation – 383 / 350 | Part #551045 Keep your freshwater cooling circuit flowing with this genuine Indmar water circulation pump for the 383 and 350 cubic inch marine engines. Unlike the raw water pump which draws water from outside the boat, the circulation pump moves coolant through the closed freshwater cooling circuit — maintaining even engine temperature across all operating conditions. Compatible with: Indmar 383 and 350 cubic inch marine engines