Engine

Caterpillar C12 All years 12.0 409hp (301kW) 1450Nm remap

Standard this engine makes 409hp and 1450Nm. Our Stage 1 file takes it to 465hp and 1595Nm.

+56horsepower
+145newton metres
1stage available

Where the power arrives

Both curves scaled from the manufacturer figures, on the Stage 1 file.

Power before and after
012625137750201,2001,6002,0002,400 RPM 012625137750201,4002,0002,600hp RPM
  • Standard 409hp
  • Remapped 465hp
Torque before and after
04318611292172301,2001,6002,0002,400 RPM 04318611292172301,4002,0002,600Nm RPM
  • Standard 1450Nm
  • Remapped 1595Nm

Stages for this engine

Stage 1 needs nothing fitted. Anything above assumes the supporting hardware is on the car already.

Every figure for the 12.0 409hp (301kW) 1450Nm

FilePowerGainTorqueGainPrice
Standard409hpn/a1450Nmn/an/a
Stage 1465hpup 561595Nmup 145ask us

Economy files show no new power figure because they are written for torque and drivability rather than peak output.

Remapping the 12.0 409hp (301kW) 1450Nm

The Caterpillar C12 All years 12.0 409hp (301kW) 1450Nm runs a factory calibration built to cope with poor fuel, skipped servicing and hot countries. We rewrite the fuelling, boost and timing for this engine on this car, then test it before you get it back. The original file is kept, so it can go back to standard whenever you want.

On the petrol side the difference shows in throttle response and in how hard it pulls through the top half of the rev range. It feels sharper off idle and keeps going where it used to flatten out.

Figures on this page are for a standard car in good health. We read the fault codes and check the basics first, and if something needs attention we will tell you before we write anything. Have a look at the other engines on the All years, the full C12 range, or everything we do for Caterpillar.

Book your C12

We write and test every file at our Aston workshop, on our own rolling road. Ring us with your reg and we will tell you what your car should make before you commit to anything.