SIERRA 18-3370 Water Kit Pump – Without Housing

Restore optimum performance to your Yamaha cooling system and make the most of the season

Outboards rely on the water pump to maintain safe operating temperatures. Any restriction to the water flow can result in overheating the engine. Sierra makes servicing Yamaha outboard water pumps easy by packaging all the necessary parts in a single kit. Each component is engineered to meet or exceed manufacturer specifications. Sierra service kits eliminate the time to search and source individual parts, so that you can focus on restoring optimum function to the water pump and getting back on the water.

Key Features

• Kit components are engineered to meet or exceed OEM specifications
• Pre-packaged kit eliminates time searching and sourcing individual parts
• Kit includes: impeller, impeller key, wear plate, impeller plate, impeller cup, O-ring and stainless steel bolts
• Does not include pump housing

The Sierra Engine Parts Selector

In addition to water pump kits, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.