Johnson Pump 500 GPH 12V Submersible Bilge Pump
Johnson Pump 500 GPH 12V Submersible Bilge Pump
The Johnson Pump 500 GPH Submersible Bilge Pump is a compact and efficient solution designed for reliable bilge water removal. Delivering 30 L/min (500 GPH), this cartridge-style pump features both straight and smooth 3/4″ elbow discharge ports to help eliminate stress cracking from over-tightened hose clamps. Its all-in-one, water-cooled motor and impeller design ensures long service intervals while maintaining excellent energy efficiency.
Maintenance is fast and tool-free—simply remove the motor cartridge without disturbing the pump casing, hoses, or mounting. The unit is built with a stainless steel (SS2343) shaft for durability and meets ISO 8849 Marine standards. For automatic operation, the pump can be paired with an automatic float switch (sold separately).
Key Features
- 500 GPH (30 L/min) submersible cartridge bilge pump
- Includes straight and smooth 3/4″ elbow discharge ports
- Water-cooled motor for long service intervals and high efficiency
- Compact, all-in-one motor and impeller design
- Stainless steel (SS2343) shaft for increased durability
- Tool-free maintenance—remove motor cartridge without disconnecting hoses
- Meets ISO 8849 Marine standard
- Compatible with an automatic float switch for hands-free operation







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