Jabsco Ballast Pump

The Jabsco Ballast Pump (MPN 18670-9127) is the OEM replacement pump trusted by major wake and surf boat builders worldwide. This is the same ballast pump installed on factory-built vessels, engineered to fill and drain ballast tanks with consistent flow and reliability across repeated use cycles. The pump comes equipped with a green Run Dry impeller and a standard electrical quick-connector—ready to integrate into your boat's existing ballast system without modification.

Installation is straightforward for boats originally equipped with Jabsco ballast systems. Connect your hoses to the intake and discharge ports, mount the pump in its original position using the factory mounting footprint, and plug the power leads together. The Run Dry impeller prevents pump damage if the intake line loses prime—a common concern in choppy water or during rapid ballast transitions. Spare impeller assemblies (Impeller #6303-0007-P) are recommended for extended cruising or heavy-use seasons. Compact dimensions (6 x 4 x 10 inches) and reasonable weight (6.8 lbs) ensure the pump fits within existing engine bay or locker constraints without requiring structural reinforcement.

This ballast pump is essential for serious wakeboarding and surfing enthusiasts who depend on consistent ballast system function to create optimal wake shape and rider conditions. Weekend boaters performing routine tank servicing and professional tow boat operators managing heavy use cycles both benefit from OEM-specification replacement parts that maintain factory performance standards. Choosing a genuine Jabsco replacement ensures electrical connectors, flow ratings, and impeller compatibility match the original system design rather than introducing potential compatibility issues or performance inconsistency.