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

The Kohree 12V RV Water Pump is a self-priming, 4-chamber diaphragm pump that delivers up to 4 gallons per minute at a 55 PSI pressure switch for dependable on-board water supply.

This compact 12-volt pump is engineered for recreational vehicles, marine craft, caravans and similar mobile water systems where reliable flow and automatic pressure control matter. With thermal overload protection and short run-dry tolerance, the unit is designed to protect the motor while providing steady performance for sinks, showers, deck washdowns, and remote water transfer tasks.

How much water can this pump move and what pressure does it maintain?

The Kohree pump delivers approximately 4 gallons per minute (GPM) and uses a pressure switch preset to about 55 PSI. That combination gives a balance of flow and force suitable for most RV and boat freshwater systems, producing consistent shower and faucet performance without frequent cycling.

• Flow capacity: ~4 GPM for efficient fixture feed
• Preset pressure switch: 55 PSI for steady outlet pressure
• Electrical draw: ~7.0 amps at rated pressure to plan power usage
• Compatibility with common RV plumbing layouts and model references like 4008-101-A65/E65

Will this pump protect itself if it runs dry or overheats?

Yes — Kohree built in safeguards to reduce damage risk. The diaphragm design tolerates brief periods of dry running without immediate motor failure, and a thermal overload mechanism will stop the motor if temperatures rise too high, extending the unit’s usable life.

• Short run-dry tolerance for accidental low-tank situations
• Thermal overload cut-out automatically halts operation if the motor overheats
• Automatic restart once safe operating temperature is reached
• Factory-tested units to minimize early-life defects

How easy is it to install and keep from leaking?

Installation is straightforward for anyone familiar with RV or marine water systems: fit standard inlet/outlet connections, secure electrical leads to a 12V supply, and mount on a stable surface. Each pump is inspected before shipment, and Teflon tape is included to help seal threaded fittings and reduce the chance of leaks.

• Self-priming up to 3 meters for flexible placement relative to the water source
• Includes Teflon tape for sealing threaded connections and preventing leaks
• Compact footprint makes it easy to mount in tight compartments
• Continuous duty design suitable for repeated on/off cycles in typical use

What support and certification come with the pump?

The Kohree 12V pump carries CE certification and includes a limited one-year warranty backed by customer support. If you experience manufacturing defects or have questions about compatibility, Kohree offers assistance to resolve product concerns.

• CE certification for recognized safety standards
• One-year warranty with customer service contact
• Pre-shipment inspection to reduce arrival issues
• Replacement guidance and troubleshooting from Kohree support

Who this is for: This pump suits RV owners, boaters and caravan travelers who want a compact, reliable 12V water solution for onboard sinks, showers and washdown applications. It’s also appropriate for DIYers needing a portable, self-priming pump for short-distance water transfer, garden tasks, or small cleaning jobs where a steady 4 GPM flow and automatic pressure control are valuable.