Johnson Pump 1600 GPH Heavy Duty Bilge Pump (16004-00)

The Johnson Pump 16004-00 is a high-performance, heavy-duty centrifugal bilge pump designed for demanding marine applications. Delivering a robust 1600 Gallons Per Hour, this 12V pump is an excellent choice for primary bilge water removal on medium-to-large pleasure boats, commercial fishing vessels, and workboats that require high reliability and long service life.

Commercial-Grade Engineering

Built to the same rigorous standards as Johnson's larger pumps, the 1600 GPH model features a liquid-cooled, 12-pole motor with double ball bearings. This design ensures the pump can run cooler and longer than standard consumer-grade pumps. The motor is protected by a mechanical seal that eliminates shaft wear and prevents water from entering the motor housing, a common cause of pump failure in saltwater environments.

Key Features:

• High-Volume Output: Moves up to 1600 GPH (100 L/min) at zero head, providing significant dewatering capacity for critical situations.

• Mechanical Shaft Seal: Unlike cheaper pumps with lip seals, the 16004-00 uses a professional mechanical seal for superior protection against moisture ingress.

• Liquid Cooled Motor: The pump utilizes the surrounding bilge water to cool the motor during operation, preventing overheating and extending the life of the unit.

• Heavy-Duty Construction: Features a high-impact ABS plastic body and a corrosion-resistant SS316 stainless steel shaft.

• Removable Strainer Base: The universal base is easy to unclip, allowing for quick cleaning of the impeller and debris removal without disconnecting any hoses.

• Standard 1-1/8" Discharge: Equipped with a 1-1/8" (28.5mm) discharge port, making it a standard fit for most existing medium-sized bilge plumbing systems.

• Ignition Protected: Fully compliant with USCG and ISO 8846 standards for installation in gasoline engine compartments.

Technical Specifications:

• Model Number: 16004-00

• Flow Rate (0ft Head): 1600 GPH (6056 LPH)

• Voltage: 12V DC

• Amperage: 7.0 Amps

• Fuse Size: 10 Amps

• Discharge Size: 1-1/8" (28.5mm)

• Max Head: 15 feet (4.5 meters)

• Dimensions: 6" H x 4.25" W

• Weight: 2.9 lbs

Why Choose the Johnson 1600 GPH?

The 16004-00 is the "sweet spot" for boaters who want a heavy-duty pump that doesn't require the massive amp draw of 2000+ GPH models. Its mechanical seal and ball-bearing motor make it vastly more durable than standard "cartridge" style pumps, making it a preferred choice for offshore use where equipment failure is not an option.

Installation Pro-Tip:

To maximize the life of your pump, use 14 AWG tinned marine-grade wire for the installation to ensure the pump receives full voltage. Voltage drops caused by undersized or corroded wiring can cause the motor to run slower and hotter, reducing its lifespan.