Engine

Caterpillar 3126B All years 7.2 234hp (172kW) 832Nm remap

Standard this engine makes 234hp and 832Nm. Our Stage 1 file takes it to 280hp and 1045Nm.

+46horsepower
+213newton metres
1stage available

Where the power arrives

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

Power before and after
07615122730201,2001,6002,0002,400 RPM 07615122730201,4002,0002,600hp RPM
  • Standard 234hp
  • Remapped 280hp
Torque before and after
0282564846112901,2001,6002,0002,400 RPM 0282564846112901,4002,0002,600Nm RPM
  • Standard 832Nm
  • Remapped 1045Nm

Stages for this engine

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

Every figure for the 7.2 234hp (172kW) 832Nm

FilePowerGainTorqueGainPrice
Standard234hpn/a832Nmn/an/a
Stage 1280hpup 461045Nmup 213ask us

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

Remapping the 7.2 234hp (172kW) 832Nm

The Caterpillar 3126B All years 7.2 234hp (172kW) 832Nm 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 3126B range, or everything we do for Caterpillar.

Book your 3126B

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.