Mazda S4 Rx7 Waterpump with Billet Impeller

Fits series 4 Rx7 waterpump housings (2 bolt thermostat housing)

- Brand new Genuine Mazda waterpump fitted with billet impeller upgrade
- Impeller machined from aircraft grade 6061 T6 aluminium
- Black anodised for longevity
- New gasket included
- Fitting instructions included

This impeller is designed to eliminate cavitation, increasing waterpump cooling efficeincy and flow rate, and freeing up a little extra HP at a higher rpm. Not only is the blade design vastly improved over factory, but impeller to housing tolerances have been reduced to aid with proper waterpump function

A must for high rpm engines, and any application that has excessive coolant temps