123 documented fitments · 9 hp · 3600 rpm
Propeller for the Yanmar 1GM10.
We've documented 123 propeller installations behind this engine — the ratios, drives and sizes below are what the fleet actually runs.
Rated power
9 hp
Max RPM
3600
Common ratios
2.62:1 · 2.21:1 · 3.22:1 · 2.64:1
Drive split
105 shaft · 18 saildrive
Documented propeller families
The fleet
Boats we've propped with the 1GM10
- Hunter Horizon 26×5
- Jeanneau Sun 2500×5
- Hunter Channel 27×4
- Jeanneau Sunfast 26×4
- Hunter Horizon 27×3
- Sadler 25×3
- Beneteau First 26×2
- Beneteau First 27.7×2
- Etap 24i×2
- Heavenly Twins Cat×2
- Hunter 265×2
- Hunter 27 Horizon×2
- Hunter 272×2
- Hunter Horizon×2
1GM10 propeller questions
What size propeller suits a Yanmar 1GM10?
It depends on the gearbox ratio behind it (documented installations most often run 2.62:1, 2.21:1, 3.22:1) and the boat it pushes. Power and max RPM set the optimum diameter; the ratio converts engine speed to shaft speed. The Builder runs the numbers and an engineer verifies.
Which propeller family do Yanmar 1GM10 owners fit?
Documented Yanmar 1GM10 installations run Varifold 2-blade, Autoprop H20, Autoprop H5 — the split follows boat type and usage rather than the engine itself.
Does the Yanmar 1GM10 come in shaft and saildrive versions?
Both are documented: 105 shaft and 18 saildrive installations. The propeller differs (hub vs spline fitting) so tell us which yours is.
Running a Yanmar 1GM10?
Two minutes in the Builder — engine pre-filled, gearbox ratio checked against the fleet, verified by an engineer within one business day.