Caterpillar C4 All generations tuning files
Typical stock and Stage 1 figures for each engine. Open an engine for torque, ECU and technical data.
Engine
Stock
Stage 1
Gain
TH336 Acert - 128hp
128 hp
155 hp
+27 hp
TH337 Acert 128hp
128 hp
155 hp
+27 hp
TH406 Acert - 128hp
128 hp
155 hp
+27 hp
TH407 Acert - 128hp
128 hp
155 hp
+27 hp
Figures are typical for a stock vehicle in good condition. Actual results depend on condition, fuel quality and fitted hardware.