2007-2011 John Deere Tier3 Sprayer Reflash

From $1,850.00
Reflash Options
Tooling
$1,850.00
$1,850.00
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2007–2011 John Deere Tier 3 Sprayer EGR Delete Tune

Deere’s Tier 3 self-propelled sprayers were built before particulate filters and DEF, so cooled EGR is the only emissions system they carry. On a 4930 with years of spray seasons behind it, that is usually where a sooty intake, a sticking EGR valve or a weeping cooler comes from. Plug our Reflash Master handheld into the sprayer, send us the read, and we return a tune with EGR turned off plus an optional Stage 1 or Stage 2 power gain. We ship all across the US and Canada.

Fits4630 · 4730 · 4830 · 4930
SystemsEGR
TierTier 3 · 2007–2011
MethodReflash Master handheld
TurnaroundTuned file in 2 hours
PowerUp to +20%

Stage 1 vs Stage 2 · John Deere 4930

Stock325HP
 
Factory baseline
Stage 1358HP
 
+33 hp · +10%
Stage 2390HP
 
+65 hp · +20%

Worked out from the 4930’s 325 hp rating. More power keeps the engine from pulling down when a full tank meets a hill or soft ground, so you can hold your spray speed and keep the boom on rate across the field. Stage 1 targets fuel economy with extra torque, and Stage 2 is for heavy loads and rolling terrain. The 4630, 4730 and 4830 gain the same percentage over their own ratings.

 
BEFORE WE SHIP YOUR KITSend us a photo of your engine serial numberThe Tier 3 sprayers came with 6.8L and 9.0L PowerTech engines, and the EGR port isn’t the same on each. Send a clear photo of the engine serial plate and we will pack the plate that fits your sprayer.
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 01OrderPlace your order. Kits usually ship the next business day.
STEP 02ReadPlug the handheld into the sprayer’s diagnostic port and save the stock ECM file.
STEP 03SendUpload the file to us. Your tune is ready in about 2 hours.
STEP 04WriteWrite the tune to the ECM and fit the block-off plate.

After the tune

EXHAUSTNo exhaust changesThese Tier 3 sprayers never had a particulate filter or DEF, so the exhaust is left untouched.
EGRBlock-off plate includedThe tune holds the EGR valve shut, and the plate blocks the port so a leaky valve can’t feed exhaust into the intake.

John Deere sprayers we tune

John Deere Tier 3 self-propelled sprayers, 2007 to 2011.

Tier 3Sprayer · Tier 3
4630473048304930

Not sure which engine is in your sprayer? Email a photo of the engine serial plate and we will check it before you order.

2011 – 2014 JOHN DEERE 4940?Interim Tier 4 4940 sprayers with a DPF have their own pageView →

Why delete the EGR on a John Deere Tier 3 sprayer?

EGR

Exhaust gas recirculation

To pass Tier 3, the PowerTech engines in the 4630 through 4930 send part of their exhaust through a cooler and back into the intake. Sprayers spend a lot of time idling at the tender and running light between fields, and that low-load running is when EGR soot builds up fastest on the valve and in the intake. The cooler heats and cools every time the machine stops and starts, and once it leaks, coolant can reach the cylinders. Turning EGR off in the tune and bolting on the plate keeps the intake clean and takes the cooler out of the picture.

Frequently asked questions

Q1Do I need to change anything in the exhaust?+

No. These Tier 3 sprayers have no DPF or DEF, so the exhaust stays as it is. The only hardware you install is the EGR block-off plate that comes in the kit.

Q2What is the engine serial photo for?+

The 6.8L and 9.0L engines use different EGR ports. The serial plate photo tells us which engine you have, so the block-off plate we send bolts straight on.

Q3How do Stage 1 and Stage 2 compare?+

Stage 1 adds about 10% and is set up for fuel economy. Stage 2 adds about 20% for sprayers carrying full tanks over hills or running wide booms.

Q4How soon can I be spraying again?+

Your tuned file is ready about 2 hours after we get the read, and writing it to the ECM takes only a few minutes.

Q5Disclaimer+

Sold for off-road agricultural use only, not for sprayers registered for road use. Confirm your state or provincial regulations before ordering.

Why Reimer Tuning

Reimer Tuning is a Canadian company that has been writing farm equipment software since 2014. Every Tier 3 sprayer tune is built in house from your sprayer’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 Tier3 Sprayer Reflash

$1,850.00

Questions about this product?
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