A jet ski jet pump is a mechanical device that is used to propel a jet ski, which is a small, personal watercraft that is powered by an internal combustion engine. The jet pump consists of a housing that encloses a series of impellers and diffusers, which are designed to create a high-velocity jet of water that propels the jet ski through the water.

The jet pump is located at the rear of the jet ski and is powered by the engine through a driveshaft. As the engine runs, it rotates the driveshaft, which in turn rotates the impellers inside the jet pump housing. The impellers draw in water through an intake at the front of the jet pump and then accelerate it through the diffusers, creating a jet of water that propels the jet ski forward.

The jet pump is a critical component of a jet ski, as it is responsible for providing the thrust needed to move the watercraft through the water. It must be able to withstand the high speeds and stresses that are encountered during operation, and it must be carefully designed and balanced to ensure efficient and smooth operation.

Proper maintenance and care of the jet pump is important to ensure that it performs at its best and has a long service life. This includes regularly inspecting the jet pump for wear and damage, and replacing it as needed. It is also important to ensure that the jet pump is properly lubricated and aligned to minimize wear and ensure smooth operation.

Kawasaki Vane-Guide & Performance Jet ski Pump / Pump housings.