2007-2011 John Deere Combine Reflash

From $1,850.00
Reflash Options
Tooling
$1,850.00
$1,850.00
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2007–2011 John Deere STS Combine EGR Delete Tune

Tier 3 Series STS combines came out before Deere added a particulate filter or DEF, which leaves cooled EGR as the only emissions part on board. After a few thousand hours of harvest, that system is usually the reason a 9770 runs hot or puts out black smoke. Connect our Reflash Master handheld to the combine, email us the read, and we send back a tune with EGR shut off and the option of Stage 1 or Stage 2 power. We ship all across the US and Canada.

Fits9570 · 9670 · 9770 · 9870 STS
SystemsEGR
TierTier 3 · 2007–2011
MethodReflash Master handheld
TurnaroundTuned file in 2 hours
PowerUp to +20%

Stage 1 vs Stage 2 · John Deere 9770 STS

Stock360HP
 
Factory baseline
Stage 1396HP
 
+36 hp · +10%
Stage 2432HP
 
+72 hp · +20%

Based on the 9770 STS rating of 360 hp. Extra power keeps the rotor and cleaning shoe at speed when you bump up the ground speed, so a full header of crop gets through the machine without slugging and more acres are done by nightfall. Stage 1 leans toward fuel economy with added torque. Stage 2 is for wet straw and big yields. The 9570, 9670 and 9870 STS gain the same percentage on their own ratings.

 
BEFORE WE SHIP YOUR KITSend us a photo of your engine serial numberThe STS lineup uses PowerTech engines in more than one displacement, and the EGR opening changes between them. A photo of the engine serial plate lets us match the block-off plate to your combine.
Email engine serial photo

What’s included

01Reflash Master handheld device
02Diagnostic cable and USB cable
03Tune file with EGR off, plus optional Stage 1 or Stage 2
04EGR block-off plate for your engine build
05Client software, Quick Reference Guide and 1 year software warranty

Handheld process

STEP 01OrderOrder the kit. Most ship out the next business day.
STEP 02ReadConnect the handheld at the cab diagnostic port and save a read of the ECM.
STEP 03SendEmail us the read. Your tuned file is back in about 2 hours.
STEP 04WriteLoad the new file and bolt on the EGR block-off plate.

After the tune

EXHAUSTNo exhaust changesSTS combines were built without a DPF or DEF tank, so the exhaust stays exactly as it is.
EGRBlock-off plate includedWith the valve closed in software, the plate seals the passage so no exhaust slips past a worn valve into the intake.

STS combines we tune

John Deere Tier 3 Series STS combines, 2007 to 2011. One cable fits every model.

Tier 3 Series STSCombine · Tier 3
9570 STS9670 STS9770 STS9870 STS

Not sure which engine your combine has? Send us a photo of the engine serial plate and we will confirm it before you order.

2011 – 2014 S-SERIES COMBINE?Interim Tier 4 S-Series combines with a DPF have their own pageView →

Why delete the EGR on a John Deere STS combine?

EGR

Exhaust gas recirculation

Deere met Tier 3 on the STS by routing cooled exhaust back into the engine, which lowers combustion temperature but adds soot to every breath it takes. A combine runs at high load for long days, so carbon builds fast in the intake and the EGR valve starts to stick. The cooler also takes a beating from harvest heat, and when it cracks, coolant can end up in the cylinders in the middle of the season. Shutting EGR off in the tune and sealing the port gives the engine clean air, steadier temperatures and fewer breakdowns at harvest.

Frequently asked questions

Q1Which cable does my combine need?+

Every STS combine on this page uses the same diagnostic cable, so you don’t need to pick a cable.

Q2Why do you need a photo of the engine serial number?+

The EGR opening is a different size on each STS engine. The serial plate photo tells us which engine you have, so the plate bolts on without any modification.

Q3What is the difference between Stage 1 and Stage 2?+

Stage 1 adds roughly 10% and focuses on fuel economy. Stage 2 adds roughly 20% for combines running wide headers or heavy, tough crop.

Q4How quickly can I be harvesting again?+

We send the tuned file about 2 hours after your read arrives, and writing it to the ECM only takes a few minutes.

Q5Will the tune lower my fuel cost per acre?+

In most cases, yes. With EGR off the engine burns cleaner, and the added power lets you cover more ground every hour, so each acre takes less fuel. Your actual savings will depend on the crop, the header and the conditions.

Q6Disclaimer+

Only for off-road agricultural use. Machines registered for road use are not eligible. Check your state or provincial laws before you order.

Why Reimer Tuning

Reimer Tuning is a Canadian company that has been writing farm equipment software since 2014. Each STS combine tune is written in house from your combine’s own read, includes a 1 year software warranty, and is backed by a team that picks up the phone.

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

2007-2011 John Deere Combine Reflash

$1,850.00

Questions about this product?
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