Water Pump Impeller Repair Kit – Fits Mercury/Tohatsu 9.9-20 HP 4-Stroke EFI (Replaces 8M0137849, 8M0135821) 440HP and many others

and many others

0R042475 & Up

Product Type Water Shutter Kit Installation Y-pipe mount Connection Rectangular pin holes Housing Material Rubber with metal rod Housing Color Black Dimensions Fits oval 4-inch Y-pipes Fitting Type 2-piece clapper design Other Technical Attributes Acts as a check valve to prevent following seas/water from washing back through exhaust to engine when not running or at low RPM What’s in the Box

Can I reuse the gaskets or O-ring

Disconnect the boat's battery to prevent accidental starts

Water Pump Impeller Repair Kit – Fits Mercury/Tohatsu 9.9-20 HP 4-Stroke EFI (Replaces 8M0137849, 8M0135821) 440HP and many othersProduct Details This Water Pump Impeller Repair Kit Fits Mercury Tohatsu 9. 9 20 HP 4 Stroke EFI (Replaces 8M0137849, 8M0135821) is designed for Mercury Mariner 9. 9, 10, 15, and 20 HP 4 Stroke EFI outboards (2020 and newer, S N 0R833820+) and compatible Tohatsu Nissan 15 20 HP (MFS) 4 Stroke models. It provides all necessary components to restore your engine's cooling system performance. It serves as a direct interchange for Mercury part numbers