Water Pump Impeller Repair Kit – Fits Yamaha 4-5HP (Replaces 6F5-W0078-00, 6F5-W0078-A0-00) 25HP Sits near the perimeter of

Sits near the perimeter of the gimbal ring mating surface for optimal sealing

According to California regulations

The most common sign is a milky or creamy appearance in your gear lube

this part fits Cobra stern drives on V6/V8 engines from 1986 through 1993

If your engine is outside these ranges

Water Pump Impeller Repair Kit – Fits Yamaha 4-5HP (Replaces 6F5-W0078-00, 6F5-W0078-A0-00) 25HP Sits near the perimeter ofProduct Details This is an aftermarket Water Pump Impeller Repair Kit for Yamaha 4 5HP 2 Stroke (19842002) and 4HP F4 4 Stroke (19992008) outboard motors. It's engineered to restore your engine's cooling system to its original performance, preventing overheating and ensuring reliability on the water. This kit is a direct replacement for Yamaha OEM part numbers 6F5 W0078 00 00, 6F5 W0078 A0 00, and 6E0 W0078 A2 00, providing a complete solution for