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Marine Products

EXTREME™ Smart Sensor™ 4.0 Fresh Water Pump 24 VDC

The Smart Sensor™ 4.0 is designed specifically for cruisers and midsize yachts. Delivering 4.0 GPM and pressure up to 50 PSI, this micro-controller based variable speed pump precisely monitors your system’s water pressure and adjusts the motor speed, eliminating the need for a pressure switch. SHURFLO® engineered the Smart Sensor™ 4.0 with a superior four-chamber design that incorporates large inlet and outlet passages to maximize water flow and efficiency, providing a “Just Like Home” shower and quiet operation.



California residents: see Proposition 65 information



EXTREME™ Smart Sensor 4.0

Model Numbers OEM/Aftermarket

4901-1201, 4901-1211


12 VDC

Dimensions Inches/Millimeters

8.3" x 5.3" x 5.0" [210x136x127mm]

Flow Rate GPM/LPM

4.0 GPM [15.1 LPM]

Amps (Max.)


Shut-Off Pressure

50 PSI [3.4 BAR]

Variable Speed Micro-Processor Controlled
50 PSI
Seamless Shell Electo-Coated Motor
Improves Performance of Showers, Heads and Sinks
Runs Dual Water Fixtures Simultaneously
Eliminates Unwanted Water Hammering
Reduces Water Temperature Fluctuations
3 Year Warranty
CE Listed
Model Number 4901-1201

OEM 4.0 GPM [15.1 LPM]

Model Number 4901-1211

Aftermarket 4.0 GPM [15.1 LPM]

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