Water Pump Kit 17400-96350 17400-96403

Function and Technical Context

The water pump kit is the heart of the raw water cooling system in two and four-stroke Suzuki outboard engines. Its primary function is to drive continuous water flow through the engine block to dissipate heat generated during combustion, preventing temperatures from reaching critical levels. The assembly includes all components necessary for complete pump renewal: rubber impeller, housing, wear plate, gaskets and other sealing elements. A pump kit in poor condition directly compromises coolant circulation, potentially causing severe overheating, cylinder head gasket damage and even complete engine failure. Designed specifically for Suzuki DT and DF series, it guarantees the exact fit required by these models without modifications or adaptations.

When to Replace This Part?

The most common symptoms of a deteriorated impeller or water pump kit in an outboard are the absence or notable reduction of the cooling water stream from the telltale outlet, activation of the overheat warning light and progressive power loss associated with excessive heating. The rubber impeller blades crack, harden and lose flexibility with use and heat exposure, so manufacturers and specialized workshops recommend replacement every 200-300 operating hours or, at minimum, every two seasons, regardless of visual appearance. Proactively renewing the kit during seasonal maintenance is the most effective measure to prevent an overheating failure at sea, whose repair is always more costly than the scheduled service itself.

Equivalent Manufacturer References