154 documented fitments · 39 hp · 3000 rpm
Propeller for the Yanmar 3JH4E.
We've documented 154 propeller installations behind this engine — the ratios, drives and sizes below are what the fleet actually runs.
Rated power
39 hp
Max RPM
3000
Common ratios
2.36:1 · 2.32:1 · 2.33:1 · 2.31:1
Drive split
99 shaft · 55 saildrive
Documented propeller families
The fleet
Boats we've propped with the 3JH4E
- Beneteau Oceanis 40×25
- Lagoon 420×16
- Hanse 400×10
- Jeanneau SO39i×7
- Jeanneau 39i×6
- Beneteau Cyclades 393×5
- Catalina 375×4
- Privilege 45×4
- Southerly 115×3
- Beneteau 373×2
- Beneteau Oceanis 373×2
- Broadblue 550×2
- Fountaine Pajot Bahia 46×2
- Grand Soleil 42×2
3JH4E propeller questions
What size propeller suits a Yanmar 3JH4E?
It depends on the gearbox ratio behind it (documented installations most often run 2.36:1, 2.32:1, 2.33:1) 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 3JH4E owners fit?
Documented Yanmar 3JH4E installations run Autoprop H5, Varifold 3-blade, Varifold 2-blade — the split follows boat type and usage rather than the engine itself.
Does the Yanmar 3JH4E come in shaft and saildrive versions?
Both are documented: 99 shaft and 55 saildrive installations. The propeller differs (hub vs spline fitting) so tell us which yours is.
Running a Yanmar 3JH4E?
Two minutes in the Builder — engine pre-filled, gearbox ratio checked against the fleet, verified by an engineer within one business day.