Overview

The Jabsco 17935-0001-P is a neoprene flexible impeller kit with 12 blades, a spline drive, a 3-3/4 in outside diameter, a 3-1/2 in depth, and a 1 in shaft diameter. It uses a brass insert and fits pumps that take this exact impeller profile for engine cooling, bilge, transfer, and other water-handling duties on board.

On a boat, the important fit checks are the drive style, blade count, and all three dimensions, not just the outside diameter. For raw-water pump service, this is the kind of spare that makes sense to keep aboard when your current impeller matches the same spline-drive hub and measurements.

Key features

• 12-blade neoprene impeller for water-moving pump service on board
• Spline-drive hub with brass insert
• 3-3/4 in outside diameter, 3-1/2 in depth, and 1 in shaft diameter
• Fits pump applications that use this exact Jabsco 17935 profile
• Suitable for many bronze flexible impeller pumps used for engine cooling, bilge, transfer, and general-purpose duties

Compatibility and fit

This is a replacement part, so the safest way to confirm fit is by matching the old impeller or pump data. Check the outside diameter, depth, shaft diameter, blade count, insert style, and spline-drive hub before ordering.

It is commonly used in flexible impeller pumps found in raw-water cooling circuits and other water-moving systems. Boats with auxiliaries, generators, or service pumps that use this exact impeller size are a good match, but the final check still comes down to the pump model and hub style already in service.

Installation and maintenance

When replacing an impeller, remove the end cover and pull the old impeller by the hub rather than prying against the pump body. A light coat of grease on the new impeller helps with installation and gives it some protection during the first moments of priming.

Impellers are wear items, so scheduled replacement is a better approach than waiting for cooling flow to drop or the old impeller to shed blades. This is a sensible onboard spare for boats that log regular engine hours, cruise away from the dock, or depend on a raw-water pump for reliable operation.