M18 Transfer Pump

Milwaukee 2771-20 M18™ Cordless Transfer Pump – 18V, 3/4" Inlet/Outlet, 480 GPH

The Milwaukee 2771-20 M18™ Transfer Pump is a battery-powered, self-priming unit designed for water transfer applications in service, plumbing, irrigation, and construction environments. Capable of moving up to 480 gallons per hour, this tool is suited for tasks such as dewatering, draining flooded areas, or transferring water between containers or systems.

This unit features REDLINK™ Intelligence, which monitors flow and automatically disables the pump once water transfer ceases—helping protect the pump from dry run conditions. Compatible with all M18™ REDLITHIUM™ battery packs, the 2771-20 provides cordless convenience and is optimized for portability in field operations.

Key Performance Features

• Self-Priming: Automatically primes when connected, eliminating manual setup
• Auto Shut-Off: REDLINK™ system halts operation when water flow stops to reduce wear
• Cordless Operation: Runs on the M18™ platform for flexible deployment on job sites
• Compact Design: 13.2" length and 6" height for easy transport and storage
• Durable Pump Housing: Designed for use in rugged service environments

Technical Specifications

• Model Number: 2771-20
• Flow Rate: Up to 480 GPH (gallons per hour)
• Total Head Height: Up to 75 feet
• Lift Height: Up to 18 feet
• Inlet/Outlet: 3/4" brass thread
• Power Source: M18™ REDLITHIUM™ battery system (battery not included)
• Dimensions: 13.2" L x 5.75" W x 6.0" H

Recommended Applications

• Jobsite water removal and dewatering
• Basement and crawl space drainage
• Service vehicle tank transfer
• Non-potable water movement in HVAC or plumbing systems

Operational Guidelines

Install by connecting standard 3/4" hoses to inlet and outlet ports. Ensure battery is fully charged and installed prior to activation. Do not run the unit dry for extended periods. For best results, monitor for debris or restrictions in the intake line to prevent flow reduction.

System Compatibility

• Fully compatible with all M18™ REDLITHIUM™ battery packs
• Works as part of the Milwaukee M18™ cordless tool ecosystem