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The Grommet - Sierra Marine Engine Parts - 18-2389 (118-2389) is constructed of high-quality materials that are non-corrosive and long-lasting in the harsh marine environment. This grommet replaces Johnson/Evinrude Outboard #314832. The Grommet - Sierra...

A switch is an essential accessory commonly used to activate a high current circuit, such as a starter motor circuit, using a low current switch. In electrical applications and vehicles, this magnetic field has a strong force and current to power...

Many marine engines used "raw water" cooling systems, which effectively meant they relied on pumping whatever water the boat was floating in?Žlt water, dirty water, algae-infested water, and others?’2ough the engine and out the exhaust system. It...

This product replaces:47-1218, GLM34800, 3099975234, 30999752345, 92-34800

Depending on the vessel use, Water Pump Housing - Sierra Marine Engine Parts - 18-3206 (118-3206) may or may not have back housing. This part is separate from the water pump. Its purpose is to house the thermostats and precisely control the coolant flow...

One of the most vital pieces of your engine is the coolant hose. Engine function will be significantly affected without the coolant pipe, putting the latter in danger of overheating. A cylinder head hose is an output pipe that drains hot coolant from the...

IMPELLER Evinrude, Johnson, and Gale Outboard Motors are built with high-quality materials at a reasonable price and meet stringent quality requirements. The impeller is a part of the engine's seawater cooling system, which keeps the secondary internal...

While your boat's engine is running, impellers cool it by pouring cold water into it. A faulty impeller stops water from being pumped into the motor, causing it to overheat. When you accelerate, the boat engine overheats, the impeller vanes lose...

Volvo Penta Exploded view / schematic Expansion tank

A thermostat controls the temperature of the water for engine cooling and maintains pressure in the cooling system to aid heat transfer from the heads and the cylinder walls. The thermostats can be ruined by corrosion, sticking, and extremely high...

The water pump gasket is an original equipment manufacturer (OEM) replacement item. It is intended to replace broken or damaged current gaskets and prevent engine leaks. This item, which has been quality tested and constructed to rigorous quality control...

Most hoses will eventually break down due to normal wear and tear. Take into account the ongoing pressure that exists within them. A flexible tube called a hose carries liquids or gases under pressure. The use and effectiveness of the hose have an impact...