Kohree 12V RV Water Pump 4 GPM 55 PSI — Self-Priming 4-Chamber Diaphragm, Thermal Protection

The Kohree 12V RV Water Pump is a self-priming, 4-chamber diaphragm pump that delivers 4 GPM at a 55 PSI switch setting for reliable onboard water pressure.

This compact 12V pump is designed for RVs, boats, yachts, caravans and a variety of outdoor water tasks where steady flow and automatic pressure control matter. Built with a self-priming diaphragm and a pressure switch preset to 55 PSI, it starts and stops automatically to maintain consistent water delivery. Safety features like thermal overload protection and brief run-dry tolerance help protect the motor and extend service life. The unit ships factory-tested and includes Teflon tape for sealing fittings.

How strong and fast is the pump?

The Kohree 12V pump produces up to 4 gallons per minute (GPM) and uses a pressure switch set at 55 PSI. That combination provides steady flow for sinks, showers, and onboard fixtures without long waits for pressure recovery.

• Flow rate: 4 GPM for continuous use.
• Pressure switch: preset to 55 PSI for consistent delivery.
• Current draw: about 7.0 amps at rated pressure.
• Self-priming capability: up to 3 meters of lift.

Can it run safely in real-world conditions?

Yes. The pump includes thermal overload protection to shut the motor down if it overheats and it tolerates short dry-run intervals to avoid immediate burnout. These protections reduce failure risk in variable marine and RV environments.

• Thermal overload: automatic motor shutdown on overheating.
• Run-dry tolerance: brief dry operation without instant damage.
• Factory-tested: inspected for leaks and performance before shipping.
• Includes Teflon tape to help seal fittings and reduce leakage.

How easy is it to install and maintain?

Installation is straightforward for typical RV and boat plumbing: mount the pump, connect inlet/outlet hoses and the 12V supply, then check fittings with the supplied Teflon tape. The pump’s open-flow diaphragm design and automatic pressure control require minimal user intervention during normal use.

• Mounting: compact footprint for under-sink or compartment mounting.
• Connections: standard inlet and outlet ports compatible with typical plumbing.
• Maintenance: minimal — check hoses and seals periodically.
• Compatibility: works with common RV/marine plumbing and models like 4008-101-A65/E65.

What warranty and support are available?

Kohree backs this pump with CE certification and a one-year warranty. Customer service is available for setup questions, troubleshooting, and warranty claims to help keep your system running.

• Certification: CE compliant.
• Warranty: one-year limited warranty from Kohree.
• Support: Kohree customer service for installation and warranty help.
• Replacement parts and guidance available through customer support channels.

Who is this for: The Kohree 12V RV Water Pump is aimed at RV owners, boat and yacht operators, caravan users, and anyone needing a dependable 12-volt water pump for onboard fixtures or light outdoor pumping tasks. It suits DIY installers and professionals who want a compact, self-priming pump with automatic pressure control, built-in safety features, and straightforward installation. If you need steady water flow for sinks, showers, or washdown stations with low maintenance demands, this pump is a practical choice.