Water Pump Impeller Kit – Fits Yamaha 2-Stroke 25–30 HP (Replaces 689-W0078-A4-00, 689-W0078-04-00) 40HP Shift the outboard into neutral

Shift the outboard into neutral and remove the lower unit mounting bolts

and A4 part numbers

Opens with a screw lock mechanism for precise control during installation

Note the orientation of the seal before removal

It serves as a direct cross-reference for Yamaha OEM part number 6FM-12411-00-00

Water Pump Impeller Kit – Fits Yamaha 2-Stroke 25–30 HP (Replaces 689-W0078-A4-00, 689-W0078-04-00) 40HP Shift the outboard into neutralProduct Details This Water Pump Impeller Kit Fits Yamaha 2 Stroke 2530 HP Outboard Engines is a comprehensive, direct fit solution for maintaining the cooling system on several Yamaha 2 stroke outboard models. It is designed for specific 25 HP (19861997) and 30 HP (19861992) series engines, including C25, C30, CV25, and CV30 variants, ensuring reliable performance. The kit serves as a direct interchange for Yamaha part numbers 689 W0078 A4 00, 689