CAT Articulated Truck Software Reflash

From $2,495.00
Reflash Options
Horsepower Tune
Tooling
$2,495.00
$2,495.00
Shipping calculated at checkout.

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CAT Articulated Truck EGR, DPF & DEF Tune

When one haul truck derates, the loader and every truck behind it slow down too. Tier 4 CAT articulated trucks, from the 725 to the 745, are tuned remotely through CAT ET while the ECM stays in the truck. Stage V trucks are the exception and get bench flashed in our shop. The EGR, DPF and DEF systems are switched off in the engine software. We ship all across the US and Canada.

FitsCAT 725 to 745 haul trucks
SystemsEGR · DPF · DEF/SCR
TierTier 4A · Tier 4B · Stage V
MethodRemote (bench for Stage V)
AdapterCAT Comm (remote)
Warranty1 year software
Emissions tuning onlyCAT articulated trucks get emissions tuning only, with no horsepower increase. Your truck keeps its factory rating.
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FIRST, FOR EVERY TRUCKSend us a photo of the engine data plateLook on the side of the radiator or inside the cab. The plate tells us the engine and emissions tier, so we can point you to the right process below.
Email data plate photo

Remote tune

Tier 4A & Tier 4B
STEP 01OrderSelect your tier and add a CAT Comm adapter if you do not have one.
STEP 02ConnectConnect the adapter to the truck’s diagnostic port and open TeamViewer.
STEP 03FlashWe log in, read the ECM in CAT ET and load the new file.
You’ll need
✓Windows laptop
✓TeamViewer installed
✓Strong internet connection
✓CAT Comm adapter
✓Battery charger
✓Key on, engine off
BEFORE STEP 02Download TeamViewer for WindowsDownload →

Stage V? Bench flash instead

Stage V articulated trucks are flashed on our bench, not remotely. When you order, we email the shipping and customs instructions. Remove the ECM, send it in, and refit it when it comes back programmed.

After the tune

EXHAUSTHollow out or straight pipe the DPFEmpty the DPF canister or install a straight pipe after the tune. The DEF catalyst on Tier 4B trucks flows freely and stays on.
EGRBlock-off plate recommendedThe tune disables the EGR. We recommend adding a block-off plate over the port too, as a fail-safe that keeps the valve from lifting later on.

CAT articulated trucks we tune

The 725C2, the next-generation 725 to 735, and the large 740 and 745, including the 740 EJ ejector truck.

725C2 · Next gen
730Next gen
735Next gen
740Standard · GC · EJ
745Standard

Not sure about your truck? Email us the data plate photo and we will confirm it.

Why delete the EGR, DPF and DEF on a CAT articulated truck?

EGR

Exhaust gas recirculation

Climbing out of a pit fully loaded keeps a haul truck at high load for long stretches, while the EGR keeps routing hot exhaust back through the cooler. That heat and soot crack coolers and stick valves, which leads to coolant loss and derates on the haul road. With the EGR turned off, the engine runs cooler on clean intake air.

DPF

Diesel particulate filter

Haul trucks spend a lot of time idling in the loading line or rolling back empty, and that cools the exhaust enough for soot to build in the filter. A truck that stops for a regen slows the whole haul cycle, and a plugged filter means downtime in the shop. Turning the DPF off and emptying the canister keeps the trucks moving.

DEF

Diesel exhaust fluid / SCR

A Tier 4B fleet uses DEF every shift, so it has to be bought, stored and pumped alongside fuel. Dust, heat and cold all take a toll on the fluid and the system, and one failed NOx sensor can derate a loaded truck halfway up a ramp. Turning the SCR off removes the fluid and those faults with it.

Frequently asked questions

Q1Where is the data plate on a CAT articulated truck?+

Check the side of the radiator first, then inside the cab. Email us a clear, close photo where every line can be read, before you order or right after.

Q2Will my truck be tuned remotely or bench flashed?+

Tier 4A and Tier 4B articulated trucks are tuned remotely through CAT ET with the ECM left in place. Stage V trucks are bench flashed, so the ECM is shipped to our shop. Your data plate tells us which applies.

Q3Can I use my own CAT Comm adapter?+

Yes. Choose No Tooling at checkout if you already have one. If not, pick Tooling Required and we ship the adapter with its software.

Q4What should I have ready for the remote tune?+

A Windows laptop with TeamViewer, a strong internet connection and the CAT Comm adapter. Have a battery charger hooked up, and keep the key on with the engine off during the flash.

Q5What happens to the DPF and DEF catalyst?+

The DPF must be hollowed out or replaced with a straight pipe once the tune is done. On Tier 4B trucks the DEF catalyst does not restrict flow, so it stays on.

Q6Does my truck need an EGR block-off plate?+

Yes, we recommend one on any truck where the EGR has been deleted. It is a fail-safe that stops the valve from lifting and letting exhaust back into the intake after the tune.

Q7Can you add horsepower to my CAT articulated truck?+

No. Our CAT articulated truck service is emissions tuning only, and the engine keeps its factory rating.

Q8How fast do you ship?+

CAT Comm adapters usually ship within 1 business day to the US and Canada. Stage V ECMs are returned once they are flashed. Expedited orders placed after 12 ET ship the next day.

Q9Disclaimer+

Off-road use only. Not for machines registered for highway use. Buyers must know their state or provincial laws before ordering.

Why Reimer Tuning

Our Canadian team has been tuning heavy equipment since 2014, from single machines to full fleets. Every CAT articulated truck file is written in house for the engine on its data plate and carries a 1 year software warranty.

Emailing us? Attach a photo of your engine data plate.

Off-road use only. Not for machines registered for highway use. Buyers are responsible for knowing their provincial or state legislation. All sales final.

CAT Articulated Truck Software Reflash

$2,495.00

Questions about this product?
Talk to a member of our team

Email Us