2011-2014 John Deere Motor Grader Reflash

From $1,850.00
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$1,850.00
$1,850.00
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2011–2014 John Deere Motor Grader DPF & EGR Delete Tune

Interim Tier 4 John Deere 670G through 872GP graders skip DEF, yet a loaded DPF and a carboned-up EGR valve still pull them off the road crew. Flash the ECM in the shop or on the shoulder with our Reflash Master handheld, or mail it in for a bench flash. Either way EGR and DPF are turned off, with an optional Stage 1 file for more torque. We ship all across the US and Canada.

Fits670G – 872GP, 2011–2014
SystemsEGR · DPF
TierInterim Tier 4
MethodHandheld or bench flash
Turnaround2 hrs · bench next day
PowerStage 1 · +10%

Stage 1 · John Deere 672G

Stock205HP
 
Factory baseline
Stage 1226HP
 
+21 hp · +10%

Shown on a 205 hp 672G. Every other grader here gains about the same 10% over its own rating. Stage 1 leans toward fuel economy with a torque bump that helps the blade hold a heavy windrow without the engine bogging.

 
GRADER IN DERATE?Choose bench flashing if you can’t reset the soot levelWhen soot has the grader derated and a regen won’t clear it on site, send us the ECM instead. We write the file, reset the soot load on the bench and have it back in the mail the next business day.
Ask which option fits

What’s included

01ECM emissions programming
02Stage 1 horsepower (optional)
03EGR block-off plate
041 year software warranty
05Reflash Master handheld, USB and diagnostic cables (handheld option)

Handheld process

STEP 01OrderMost handheld kits ship the next business day.
STEP 02ReadPlug the handheld into the grader’s diagnostic port and save the stock read.
STEP 03SendSend us the read file. The modified file comes back by email in about 2 hours.
STEP 04WriteWrite the file, bolt on the EGR plate and hollow or pipe the DPF.

Bench flash process

STEP 01OrderShipping and customs details arrive by email.
STEP 02ShipRemove the ECM from the grader and ship it to our shop.
STEP 03FlashWe program it, clear soot and ship it back the next business day.
STEP 04InstallReinstall the ECM, fit the EGR plate and deal with the DPF.
OVER-THE-AIR UPDATESRead our position on John Deere OTA rewritesRead →

After the tune

EXHAUSTHollow out or straight pipe the DPFOnce regens are off, the DPF canister gets hollowed out or replaced with a straight pipe. These Interim Tier 4 graders have no DEF or SCR, so nothing else in the exhaust changes.
EGRBlock-off plate includedThe software holds the EGR valve shut, and the included plate blocks the port as a backup should the valve ever hang open.

John Deere motor graders we tune

Interim Tier 4 G and GP graders, 2011 to 2014. GP models add Grade Pro controls and take the same file as the matching G.

670 / 672PowerTech 6.8L
670G670GP672G672GP
770 / 772PowerTech 6.8L
770G770GP772G772GP
870 / 872PowerTech 9.0L
870G870GP872G872GP

Grader not listed, or unsure of the year? Send us the machine serial number and we will confirm the fit. 2014 and newer graders with DEF are covered on our Final Tier 4 page.

2014 – PRESENT JOHN DEERE GRADER?Final Tier 4 graders with DEF use a separate tuneView →

Why delete the DPF and EGR on a 2011–2014 John Deere motor grader?

DPF

Diesel particulate filter

Fine grading, ditch work and roading between sites keep a grader at light, steady load, which is the worst case for passive soot burn-off. The DPF fills, regens interrupt the shift, and after a decade many of these canisters hold more ash than any regen can clear. Hollowing the DPF or fitting a straight pipe stops the regen cycle for good and frees up exhaust flow.

EGR

Exhaust gas recirculation

Without SCR on board, these Interim Tier 4 PowerTech engines control NOx almost entirely through cooled EGR. Years of recirculated soot leave the valve sticking, the cooler restricted and the intake lined with carbon, and the result is lost pull at the moldboard plus a dash full of codes. Our file shuts the EGR off, and the block-off plate seals it.

Frequently asked questions

Q1Handheld or bench flash: which is right for my grader?+

Most owners choose the Reflash Master handheld and tune the grader where it sits. Go with bench flashing if the machine is derated from high soot that can’t be cleared on site, or if CAN bus traffic keeps the handheld from writing the file.

Q2How quickly do I get the tune?+

After you send the stock read from the handheld, the modified file comes back in about 2 hours. A bench flashed ECM is programmed and shipped the next business day after it arrives, plus transit.

Q3Do GP graders take the same file?+

Yes. GP models add Grade Pro controls, but the engine and ECM match the G version, so both use the same tune.

Q4What should I do with the DPF?+

Once the new file is loaded, hollow out the canister or replace it with a straight pipe. These graders have no DEF or SCR, so nothing else needs to change.

Q5What does Stage 1 add?+

Roughly 10% more power with a focus on fuel economy. Torque arrives earlier, so the grader holds its cut on a heavy pass without extra throttle.

Q6Can a dealer update wipe the tune?+

A dealer reflash or software update can replace our file. Read our OTA statement before connecting the grader to dealer service tools.

Q7Disclaimer+

For off-road use only. Not for machines registered for highway use. Check your provincial or state laws before you order.

Why Reimer Tuning

Reimer Tuning is a Canadian shop that has been writing diesel software for construction and farm machines since 2014. Tune with the handheld or mail us the ECM, and every Interim Tier 4 Deere grader file comes from our own team with a 1 year software warranty.

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

2011-2014 John Deere Motor Grader Reflash

$1,850.00

Questions about this product?
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