Hi looking for a prop for my 120 which has a 125hp lower unit but parts for force in Australia are rare so I'm just wondering if any other brands would be compatible merc etc?
Turning Point Hustler and Michigan Vortex will fit - you need one of there hub kits - you have to take off the plastic ring on the outer hub so it slides into the lower unit. if you have a single exhaust lower unit, the tapper on thrust washer included in hub kit that is slightly different - if you have a dual exhaust version i think it's ok.
On my engine I took an extra thrust washer and ground down the top so it fit into the prop hub better. Or if you use the thrust washer that comes in the kit it just seats a little funny.