663-44315-A0 Water Pump Impeller Gasket for Yamaha | JLM Marine family-yamaha-25esr Inspect the mounting surface and

Inspect the mounting surface and clean thoroughly to remove any old gasket material

Unscrew the bolts on the water pump housing and slide it up the driveshaft to expose the impeller

eliminating the VRO oiling function

18-2001 – Oil Seal (OEM 330137) – Qty: 2

How do I confirm this kit fits my engine's pump

663-44315-A0 Water Pump Impeller Gasket for Yamaha | JLM Marine family-yamaha-25esr Inspect the mounting surface andWater Pump Impeller Gasket Fits Yamaha 2 Stroke 4050 HP Outboards This water pump impeller gasket is engineered to fit Yamaha 2 stroke outboard engines ranging from 40 HP to 50 HP across multiple years and series. It provides a reliable seal for your water pump assembly, ensuring optimal cooling performance and preventing leaks in your marine outboard system. This gasket directly replaces Yamaha OEM part number 663 44315 A0, offering seamless