Motor Shaft Seal: This is a critical seal that prevents water from leaking into the motor. 

O-rings: The kit includes various O-rings of different sizes, designed for specific locations within the pump, such as the union connections, seal plate, diffuser, and cover. 

Gaskets: These provide a tight seal between different pump components.

Lubricant: Some kits may include a small amount of lubricant to help with installation and ensure smooth operation.

Cost-effective: Replacing all the seals and gaskets at once is more efficient and often cheaper than replacing individual parts.

Prevents leaks: New seals and gaskets ensure a proper seal, preventing water leaks and potential damage to the pump or surrounding equipment.

Extends pump life: By replacing worn-out components, you can prolong the lifespan of your Northstar pump.

Restores performance: A properly sealed pump operates more efficiently, providing optimal water flow for your pool.