Few names are as common across UK farms, estates and contracting fleets as John Deere, and the same green and yellow turns up on harvesting gangs, forestry sites and construction yards.
Unlock The Potential
Tractors, combines, foragers, sprayers, telehandlers, harvesters, dozers: whatever John Deere you operate, it left the factory running a cautious map built to satisfy every market and emissions regime at once. That caution leaves real power, torque and fuel economy locked away in the engine you already own. Unlocking it is what we do. Since 2010, our UK R&D team has developed John Deere ECU remaps in-house, engine by engine, and our platform already covers more than 30 John Deere series across the tractor, combine and harvester ranges.
The Same Reliability, More Power
Every calibration is written for your specific engine and installed on-site by a trained agent from our network of 400+ worldwide. We never push an engine beyond safe operating limits, every remap carries a lifetime warranty against software faults, and your original map is saved to our servers before any work begins, so the machine can be returned to factory settings whenever you want.
If you run John Deere and you want more from it without risking its reliability, you have found the right team.
The Smart Business Case For John Deere Remapping
For most operators, the first number that matters is fuel. A John Deere remap fine-tunes injection timing, fuelling, and boost so the engine does the same work while burning less fuel, and on the right machine, that means fuel savings of between 5% and 15%. The biggest gains come from machines that spend their day working hard: a 6R on primary cultivations in heavy going, an 8R pulling a big drill, an S Series combine at full throughput.
When the engine sits near its limit for hours at a time, even a few percent off your fuel bill adds up quickly across a season and a yard full of machines.
Power and torque are where the day-to-day difference shows. Extra torque lets a tractor hold its target forward speed through the heavy patches instead of dropping a gear, so you cover more ground in a day, and your AutoPowr or CommandQuad transmission spends less time hunting. On a 7310R we take 310hp and 1452Nm up to 350hp and 1600Nm, enough to pull a larger implement or keep the same one moving faster. For a combine or forager, more usable power means higher throughput and a better chance of getting the crop in before the weather turns. The machine you already own does more, which is often the difference between buying another and making the one in the shed earn its keep.
There is the operator to think about as well. Seasonal work means long days, and a tractor that pulls cleanly without labouring or constant gear changes is far less tiring to sit in from first light to dark. A machine that feels willing rather than stretched keeps your best people productive when the pressure is on.
None of this comes at the expense of reliability. Every John Deere calibration is developed in-house by our R&D team and stays within the safe operating limits of the engine and driveline, because there is no sense in buying performance you pay back in downtime. Before any work begins, we run a full diagnostic health check to confirm the machine is sound, and your original map is saved to our servers so it can be reverted at any time. Every remap carries a lifetime warranty against software faults.
Understanding John Deere Engine Platforms
John Deere is one of the few manufacturers that builds its own engines, and almost every machine runs on the same PowerTech family. It comes in four main displacements, and knowing which one sits under your machine tells us a great deal about where the headroom is. The 4.5-litre powers smaller 5M, 6M and 6R tractors, telehandlers and loaders. The 6.8-litre is the workhorse of the mid-range, found across most of the 6R line and into the 7R, sprayers and smaller harvesters. The 9.0-litre runs the larger 7R and the whole 8R range. The 13.5-litre sits in the 9R tractors, the big foragers and S Series combines like the S690i.
Realise The Full Potential
These engines leave the factory on conservative maps for two reasons. John Deere sells the same machine in dozens of countries with different fuel grades and duty cycles, and every engine has to meet the emissions standard of its day, calibrated to suit the regulator as much as the operator. The headroom that is left behind is real, and it is exactly what we work with.
The clearest example is the 6.8-litre PowerTech. John Deere uses the same block right across the 6R range, from the 6140R up to the 6250R, and sets each model's output in software rather than in metal. A 6155R leaves the line rated at 155hp from the identical engine block that produces 250hp in a 6250R. The hardware is built for far more than the badge suggests. The same holds for the 9.0-litre, which carries the entire 8R range from the 8245R to the 8370R. This does not mean every engine should be run flat out, and we never do, because the gearbox, axles and cooling all have to live with the change. But it does mean there is genuine, safe performance to unlock on most John Deere machines, and our R&D team knows precisely where it sits on each one.
Real John Deere gains from our platform (Stage 1)
Every figure here is a real calibration from our platform, written for that specific engine and proven on the dyno, not an estimate.
Can't Find Your Model? Our R&D team writes new John Deere calibrations all the time, engine by engine, so a machine that isn't listed yet usually just means we haven't published it. Tell us what you run, and we will develop a bespoke map for it, built to the same standard and covered by the same lifetime software warranty.
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How We Remap Your John Deere
The Health Check First
Every job starts with a full diagnostic health check. Before we change anything, we confirm the machine is mechanically sound and clear of existing faults, because a remap is only ever as good as the engine underneath it. If something needs attention first, you will know before any work goes ahead.
Your Original Map, Saved
Once the machine has a clean bill of health, we read and back up your original John Deere map to our dedicated server. That backup is what makes the remap fully reversible. If you ever sell the machine, book it in for warranty work or simply want to return to standard, the factory map can be restored exactly as it was.
Loading The New Calibration
The new calibration is then written to the ECU, usually through the diagnostic port or on the bench when a particular John Deere ECU requires it. Either way, the change is to the software alone. There are no extra boxes bolted on and nothing for a later owner to unpick. We finish by checking the machine over and confirming it is pulling as it should.
Quick, Clean & Reversible
Most installs happen on your own farm or yard, carried out by a local authorised agent with the machine back in work the same day, typically within a couple of hours. If you are not too far from our HQ just outside Bristol, you are welcome to bring the machine to us instead, where our R&D team and dyno are on hand.
Flexible Service For John Deere Operators
Most John Deere remapping is done while the machine is working. Our network of 400+ trained and authorised agents covers the UK and beyond, so in most cases a local agent comes to your farm, yard or depot and carries out the install on site. Many of our agents can also bring a PTO dyno to measure your John Deere's power at the shaft before and after, so you see the gain for yourself without the machine ever leaving the yard. There is no loading a tractor onto a low-loader and losing a day to travel, and no waiting for a workshop slot in the middle of drilling or harvest.
If you would rather bring the machine to us, and you are based in the South West or not too far from Bristol, you are welcome at our HQ just outside the city. It is home to our R&D team and our own dyno, so we can measure exactly what your John Deere is putting through the PTO and tune the calibration to the reading. For specialist applications, we can do the work on site.
For farms and contractors running several John Deere machines, we can plan the work around your calendar rather than ours. Whether it is a mixed fleet of 6R and 7R tractors or a yard that empties the moment the weather breaks, we will schedule the remaps to fit the quiet windows and keep everything earning.
Become An Authorised John Deere Remapping Agent
If you are an agricultural engineer or workshop owner, John Deere remapping is one of the most straightforward ways to add a high-margin service to what you already do. Farmers and contractors increasingly want more from the machines they own rather than spending six figures on new ones, and demand for proper, reliable ECU tuning continues to grow. With John Deere on so many UK farms, it is work that comes to your door.
As an authorised Avon Tuning HD agent, you are never doing it alone. Our UK R&D team develops every John Deere calibration in-house and stands behind you on the technical side, so you can take on a 6R, an 8R, or an S Series combine knowing the map is right and the backup is there if you ever need it.
You get full training, the full range of John Deere calibrations we have built up over more than a decade, and access to the best tools in the business, including the Dimsport dynamometers we supply as sole UK distributor and the PTO equipment to prove your work out on the farm.
The result is a genuine competitive edge, a service your rivals cannot easily match, backed by a name farmers already trust.
Trusted By Farms And Contractors Across The UK
We have been developing heavy-duty ECU remaps since 2010 and have tuned thousands of agricultural machines in that time.
Behind every John Deere remap sits a UK-based R&D team, a network of 400+ trained and authorised agents, and a lifetime warranty against software faults. We are also the sole UK distributor for Dimsport, the dynamometer and tuning equipment our own engineers work with, which tells you something about the standard we hold ourselves to.
Common Questions About John Deere Remapping
If your machine is still within John Deere's factory warranty, it is worth knowing that a remap is an aftermarket change and can affect coverage on the engine and driveline, as it can with any manufacturer. Many owners remap once the warranty period is behind them, or accept the position knowing the gains on offer. Either way, we back up your original map before we start, so it can be reinstated ahead of any dealer visit or warranty work, and the machine returned to standard.
Most installs take a couple of hours, on your own farm or in your yard, with the machine back in service the same day. There is no need to lose a day carting it to a workshop.
No. We never push an engine beyond its safe operating limits, and because John Deere shares transmissions across several models, we always set the gains to suit the whole driveline, not just the engine. Your AutoPowr, CommandQuad or e23 transmission is part of that calculation. Every map is developed in-house and proven before it goes near your machine.
Typically between 5% and 15%, depending on the machine and the work it does. The biggest savings come where the engine spends most of its day working hard, on heavy cultivations, pulling a loaded trailer or running a combine at full throughput, because that is where a more efficient map does the most good.
Yes. For farms and contractors running several John Deere machines, we schedule the work around your calendar and quiet windows, so a mixed fleet of tractors, telehandlers and harvesters can be done with minimal disruption.
Almost certainly. Our network of 400+ trained and authorised agents covers the UK and beyond, and in most cases, one will come to you. Use the agent finder to locate your nearest.
Completely. Your original John Deere map is saved to our dedicated server before any work begins, so the machine can be returned to exactly how it left the factory at any point.
Find Your John Deere Model
Use the finder below to see exactly what your John Deere will make after a remap. Pick your series, then your model, and you will get the real stock and remapped power and torque figures for that engine, along with a link to its full details.
It covers the John Deere range we already hold calibrations for, from 5 Series compact tractors through the 6R, 7R, 8R and 9R workhorses to the C, S, T and W harvester series.
Not sure which engine you have, or running something that isn't a tractor? The same finder covers John Deere combines, foragers and other machinery, and the figures come straight from our platform rather than a generic estimate.
188 engines available
No engines match your search.
Ready To Get More From Your John Deere??
Whatever you run, a tractor, a combine, a forager or a telehandler, there is performance and economy in it that the factory map leaves on the table. We can unlock it safely, with real figures you can see before you commit and a lifetime software warranty behind every map.
Find your model to see the numbers for your own engine, locate your nearest agent to book the work on your yard, or get in touch if you run something we have not listed yet or have several machines to do.