The most reasonably priced component used on the Lt-z400z Quad Sport 2006 (k6) Usa (e03) Quadsport Quad-sport Water Pump (model K3/k4) is the E Ring.
The eighteen Lt-z400z Quad Sport 2006 (k6) Usa (e03) Quadsport Quad-sport Water Pump (model K3/k4) component parts are all listed in this schematic.
This WATER PUMP (MODEL K3/K4) assembly utilises three Bolt(6x30)(s) - the highest specified component.