Yamaha Lower Unit Assembly - 6H3-45300-19-4D Boat Grill Covers & Cases Yamaha Service Manual - E60

Yamaha Service Manual - E60 - LIT-18616-01-29

this Mercury Marine part number gives you confidence in every mile

especially when you’re running long or pushing hard

It just works the way the system was designed to

That is why genuine Mercury-specified spark plugs matter

Yamaha Lower Unit Assembly - 6H3-45300-19-4D Boat Grill Covers & Cases Yamaha Service Manual - E60Yamaha Lower Unit Assembly Gearcase & Propulsion System 6H3 45300 19 4D Overview A bad lower unit will take a solid running motor and turn it into a headache fast. Ive seen guys chase small fixes when the real issue was deeper in the gearcase, and at that point, a full replacement just makes more sense. This assembly takes the guesswork out and gets everything back in line where it should be. Once its installed right, youll feel the difference