TORK Distributors Fits Polaris Booster Pump PB4 60 Prior-Dec 2011 Shaft Seal & O-Ring Rebuild Kit

What is the white liquid in the small bag? Is it lube for o rings or seal?

Pump is singing bad bearings'kit fix?

Will this totally stop leak ? The tiny o-ring is the only part to seal the fast turning shaft with high pressure water, don’t see how is it possible.

Will this kit fit my pump with serial # PB071114303