Water Pump Impeller Kit – Fits Yamaha 4-Stroke 9.9-30HP (Replaces 61N-W0078-11-00, 18-3432) 135-400HP it's a best practice to

it's a best practice to replace the impeller every 1–2 years or every 100–200 hours of operation

1 x Exhaust Elbow Gasket (27-18272/27-97863)

Note the fuel flow direction indicated by an arrow on the old filter

including Yamaha 91401-40025-00

replace your water pump impeller every two seasons of use

Water Pump Impeller Kit – Fits Yamaha 4-Stroke 9.9-30HP (Replaces 61N-W0078-11-00, 18-3432) 135-400HP it's a best practice toProduct Details This comprehensive Water Pump Impeller Kit Fits Yamaha 9. 9 30HP 4 Stroke Outboards (Replaces 61N W0078 11 00) is designed for routine maintenance or repair of the engine's cooling system. It is primarily intended for Yamaha F25 (25HP) 4 stroke outboards but also offers compatibility with F9. 9, F15, F20, and F30 models. This kit serves as a direct replacement for Yamaha part number 61N W0078 11 00 and Sierra 18 3432, ensuring a