Catalog/ Trucks & buses/ King Long/ QMX
← King Long QMX engines

King Long QMX 8.9 TD 340hp

2003–present · 340 hp · diesel
Stage 1
OriginalAfter tuningDiff
Power hp340 375 +35
Torque Nm1500 1615 +115
Power gain
+10%
Torque gain
+8%
Fuel economy −9%
Before
22.7 L / 100 km
After tuning
20.7 L / 100 km
Saves ≈ 2.0 L / 100 km — about 2 007 L (over 100 000 km) ≈ €3 512
Estimate for a typical duty cycle · real saving depends on load & driving style
Ready to feel these +35 hp on the road?
Get your ready-to-flash Stage 1 file for the King Long QMX
Order tuning file →
Stage 1 file: €140
✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included
Power graph / Stage 1
PowerTorqueStock
dyno graph