5031744 Water Pump Impeller Repair Kit for Johnson Evinrude OMC Outboards 4 Stroke 40 50 HP E40 J40 E50 J50 1999-UP Engines Marine Cooling System Service Compatible with Sierra 18-3242 Replacement — Open-Box, 24% Off

The Water Pump Impeller Repair Kit is designed for Johnson Evinrude OMC 40HP 50HP outboard motors, covering 1999 to up gearcase models. It helps keep the cooling system running smoothly during regular boating use. The Outboard Impeller Kit for Johnson Evinrude OMC 5031744 5031415 5032166 5034358 0778317 Sierra Marine 18-3242 The Aftermarket Replacement Water Pump Repair Kit for Johnson Evinrude includes components: Water Pump Impeller , Wear Plate , Key, Gasket The Water Pump Service Kit helps restore cooling performance by replacing worn parts that may cause overheating reduced water flow or water pump failure over time. The Marine Cooling System Impeller Repair Kit is recommended for seasonal or 100-hour maintenance and helps prevent unexpected cooling problems when operating in seawater shallow areas or waters with debris.

Water Pump Impeller Repair Kit- Fits Johnson Evinrude 4 Stroke 40 50 HP E40 J40 E50 J50 1999-UP

This GHmarine water pump impeller repair kit fits 1999-UP Johnson Evinrude Outboard. It helps support engine cooling and maintain water flow for your boat's performance on the water.

Compatible for Johnson Evinrude OMC BRP Marine Outboard Motor Models(Verify your engine year and displacement):

Fits 2 Stroke 25 30 HP 2001-up

Fits 4 Stroke 40 50 HP EFI 1999-up

Fits 4 Stroke - E40 J40

Fits 4 Strokes E50 J50 (2000-02)

Feel free to share your engine serial number for compatibility confirmation.

Replaces Part Numbers:

for Johnson Evinrude OMC outboards BRP 5031744 5031415 5032166 5034358 0778317

for Sierra Marine 18-3242

Package Include:

1 x Water Pump Impeller 17461-96312

1 x Wear Plate 17471-94401

1 x Key 09420-04006

1 x Gasket 17472-96303

Key Features of Our Kit:

Neoprene rubber impeller resists saltwater corrosion for pumping performance and service life.

Complete kit with housing: Includes impeller stainless wear plate gaskets O-rings seals and liner cup—all in one package.

Drop-in design for DIY installation: ready in minutes with basic tools.

Materials tested for heat resistance abrasion and operation in fresh or saltwater conditions.

Why Regular Impeller Replacement Matters

The impeller draws in water to circulate through the engine for heat dissipation. Over time saltwater exposure debris dry running or wear can cause the rubber blades to crack deform or break off—reducing water flow and risking engine damage like warped cylinders or seized pistons. Marine sources suggest inspecting and replacing it every season or after 100 hours of use to help avoid repair costs and support performance.