The Yamaha boat pump housing on a Yamaha sport boat is a component that is part of the jet pump system. It is a hollow, tubular structure that encloses the Yamaha boat impeller and pump shaft and is located at the back of the boat. The Yamaha boat pump housing is connected to the boat's engine and is responsible for drawing water into the Yamaha housing and forcing it out through the steering nozzle, providing the thrust that propels the boat through the water.

The Yamaha Boat pump housing is typically made of high-strength materials such as aluminum or stainless steel and is designed to withstand the high forces and stresses that are generated during operation. It is also typically designed to be easy to access and maintain, with components that can be easily removed and replaced if necessary.

To ensure the best performance and longevity of the yamaha boat pump housing, it is important to follow the manufacturer's recommendations for maintenance and to use the boat in accordance with the manufacturer's guidelines. This may include regularly cleaning and lubricating the boat pump housing and avoiding excessively rough or shallow water.