Catalog/ Boats/ Yanmar/ 3J Series
← Yanmar 3J Series engines

Yanmar 3J Series 3JH40

All · 40 hp
Stage 1
OriginalAfter tuningDiff
Power hp40 60 +20
Torque Nm0 0 +0
Power gain
+50%
Torque gain
+0%
Ready to feel these +20 hp on the road?
Get your ready-to-flash Stage 1 file for the Yanmar 3J Series
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Stage 1 file from €120
Exact price depends on the ECU — confirmed when you upload the file
✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph
Original ECU files for Yanmar Marine 4 stock (ORI) files · €20 per file →