Engine

New Holland T4 All years T4.85 84hp (62kW) 351Nm remap

Standard this engine makes 84hp and 351Nm. Our Stage 1 file takes it to 103hp and 448Nm.

+19horsepower
+97newton metres
1stage available

Where the power arrives

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

Power before and after
028568311101,2001,6002,0002,400 RPM 028568311101,4002,0002,600hp RPM
  • Standard 84hp
  • Remapped 103hp
Torque before and after
012124236348401,2001,6002,0002,400 RPM 012124236348401,4002,0002,600Nm RPM
  • Standard 351Nm
  • Remapped 448Nm

Stages for this engine

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

Every figure for the T4.85 84hp (62kW) 351Nm

FilePowerGainTorqueGainPrice
Standard84hpn/a351Nmn/an/a
Stage 1103hpup 19448Nmup 97ask us

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

Remapping the T4.85 84hp (62kW) 351Nm

The New Holland T4 All years T4.85 84hp (62kW) 351Nm 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 T4 range, or everything we do for New Holland.

Book your T4

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.