Cielo Hermosa

Tractor Tuning Services

On-site engine tuning for tractors, combines, sprayers, and heavy equipment.

We tune diesel farm and heavy equipment where it works. Each machine gets a custom calibration matched to its engine and the way you run it, done with professional tuning equipment and software from our specialist engineering partner.

On-Site Service

We travel to your equipment instead of requiring you to haul it in.

Tune Verification

Each tune is checked and verified for quality before the work is considered complete.

No Emissions Deletes

We tune only. Factory emissions equipment and diagnostics stay in place and working.

What we tune

  • Tractors: row-crop, utility, and 4WD
  • Combines and forage harvesters
  • Self-propelled sprayers
  • Telehandlers, loaders, and other machines built on ag diesel engines
  • Other diesel ag and heavy equipment, confirmed model by model

What a good tune can improve

Power and torque
Pull heavy implements and hold ground speed on hills and in tough soil.
Fuel economy
An engine calibrated for the work it actually does can burn less fuel per acre.
Response and drivability
Cleaner throttle response and steadier RPM when the load changes.
Diagnostics and health check
We scan for fault codes and look the machine over before we tune, so problems get fixed, not hidden.

Brands and machines

Common ag brands include:

  • John Deere
  • Case IH
  • New Holland
  • Massey Ferguson
  • Fendt
  • Claas
  • Challenger
  • Valtra
  • Deutz-Fahr
  • Kubota
  • JCB
  • Versatile

Support depends on the engine, control unit, and software version, so submit the request form with your make, model, and year and we’ll confirm your machine. We work with the common engine controllers found in modern farm equipment, including Bosch, Delphi, and Denso units.

Brand names are used only to describe compatibility. We are not affiliated with or endorsed by any equipment manufacturer.

How it works

  1. Submit the request form

    Tell us the make, model, and year, and what you want the machine to do better. We confirm it can be tuned and quote your price.

  2. Pay your deposit

    The deposit holds your spot on the schedule and is credited toward the final price.

  3. We read the ECU file

    On site, we connect through the diagnostic port, or directly to the engine control unit when a machine needs it, check for fault codes, and save a backup of the original software.

  4. A custom file is built

    Our specialist engineering partner builds a calibration for your exact engine and software version.

  5. We install and test

    We load the new file, run the machine under load, and confirm it reads clean with emissions equipment and diagnostics working.

Pricing

Tractor tune
$2,500 per machine
Combines, sprayers, and machines over 400 hp
$2,750 per machine
Multiple machines, same trip
10% off machines 2 to 4, and 15% off machines 5 and up.
Deposit
$1,000 for one machine, $1,500 for two, or $750 per machine for 3 or more. Your deposit is credited toward the final price. It’s fully refunded if we can’t tune your machine, unless the custom tune file has already been purchased.
Travel
We tune equipment anywhere in the United States and Mexico. We split our time between western Colorado and Sonora, and we schedule jobs around our trips between the two. Travel within 150 miles of either base is included. Past that, travel is $3 per mile beyond the first 150, round trip. For long-distance jobs, we confirm the travel cost before you pay a deposit. Booking several machines, or teaming up with nearby farms, keeps the trip cost down.

Pay your deposit

  • Best to submit the tuning request form first so we can confirm your machine can be tuned.
  • Your deposit is credited toward the final price. It’s fully refunded if we can’t tune your machine, unless the custom tune file has already been purchased.
  • For 3 or more machines, use the 3+ button ($750 per machine) and choose how many machines at checkout.

Secure checkout by Stripe.

Request Tractor Tuning

Tell us about the equipment you would like tuned.

Submit your equipment information and we will review the request. After you submit your request, we’ll contact you to confirm pricing and scheduling. Deposits are $1,000 for one machine, $1,500 for two, or $750 per machine for 3 or more, paid with the buttons above.

We reply by email, usually within a day.

After you submit your request, we’ll contact you to arrange your deposit.