Stewart Stage 4 pumps are the cutting edge in performance water pump
technology. The Stage 4 pump utilizes the Stewart Components DRV-8 impeller.
This exclusive 8 vane impeller is fully CNC machined from 6061-T6 billet
aluminum. It's special design flows up to 160 GPM, while consuming less than 3
horsepower at 4,500 pump RPM. Stewart Stage 4 pumps are the ULTIMATE
water pump for any application!
Note: All Stage 4 high flow water pumps require a
Stewart/Robert Shaw high performance thermostat for proper performance.
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