Caterpillar C4 All Engines
Below are the 4 engines we cover for the Caterpillar C4 All — each one links to its own performance page with dyno-tested figures.
- TH336 Acert - 128hp · diesel
- TH337 Acert 128hp · diesel
- TH406 Acert - 128hp · diesel
- TH407 Acert - 128hp · diesel
4 engines are catalogued for the Caterpillar C4 All. Selecting yours below takes you straight to real performance numbers measured for that engine, standard and remapped side by side.
Frequently asked questions
Which tuning stages does the Caterpillar C4 All support?
It depends on the specific engine — pick yours below and its performance page will show exactly which stages (Stage 1, and Stage 2 where supported) are available.
How fast can a Caterpillar C4 All file be turned around?
Typically a few hours from upload, tracked live in the member panel once your request is open.
Is ECU remapping safe on the Caterpillar C4 All?
Yes, when done within the limits set for that specific engine — which is exactly what our stage options are calibrated to. Every file is worked by someone experienced with that engine family.
How do I identify my exact Caterpillar C4 All engine?
Check the ECU sticker under the hood, or the engine code on your vehicle documents — either one will match against the list below.