Yamaha - Gear pump assy - 66Y-43830-00-00 Mercury-30HP-EFI-2021 but it’s smart to check

but it’s smart to check and replace it when servicing the fuel pump

Amperage: 5 Amp

Engine synchronizer gauge

Gerotor assyWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer

Yamaha - Gear pump assy - 66Y-43830-00-00 Mercury-30HP-EFI-2021 but it’s smart to checkYamaha Gear Pump Assembly Oil Injection Component 66Y 43830 00 00 Overview On oil injected Yamaha motors, the gear pump is one of those parts you really dont want to overlook. Its responsible for delivering the right amount of oil to keep everything lubricated, and when it starts to fail, the damage can come quick. Ive seen engines lose lubrication just because this pump wasnt keeping up. Keeping a solid, reliable pump in place is key to protecting