2011-2014 5-8 Series Tractors Reflash
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2011–2014 John Deere 5–8 Series DPF & EGR Delete Tune
Interim Tier 4 John Deere tractors like the 6150R run without DEF, but their EGR and particulate filter still cause most of the downtime. Flash the ECM yourself with our Reflash Master handheld, or send it in and we bench flash it for you. Either way EGR and DPF are switched off, with Stage 1 or Stage 2 horsepower if you want it. We ship all across the US and Canada.
Stage 1 vs Stage 2 · John Deere 6150R
Shown on a 150 hp 6150R. Stage 1 leans toward fuel economy with a modest torque gain, while Stage 2 is built for power and performance. Every other model gains the same share of its own rating.
What’s included
Handheld process
Bench flash process
After the tune
John Deere tractors we tune
Interim Tier 4 John Deere 5, 6, 7 and 8 Series tractors, 2011 to 2014.
Tractor not on the list? Send us your machine serial number and we will confirm the fit. The 7310R and other models running DEF are covered on our Final Tier 4 page.
2014 – PRESENT JOHN DEERE TRACTOR?Final Tier 4 5–8 Series tractors with DEF use a separate tuneView →Why delete the DPF and EGR on an Interim Tier 4 John Deere?
Diesel particulate filter
On an Interim Tier 4 6150R, the DPF is the only aftertreatment between the engine and the stack, and it fills with soot fastest during light work like raking, spraying or running a grain auger. When regens can’t keep up the tractor derates, and by now many of these filters are carrying years of ash. Hollowing the canister or fitting a straight pipe ends regens and lets the engine exhale freely.
Exhaust gas recirculation
Without SCR, these early PowerTech engines lean heavily on cooled EGR to control NOx, so a large share of exhaust is cycled back through the cooler. After a decade of service that means carbon-choked passages, sticking valves and coolers that start to leak. Our file shuts the EGR off, and the block-off plate seals the port permanently.
Frequently asked questions
Q1Handheld or bench flash: which should I choose?+
Most owners use the Reflash Master handheld and tune the tractor on site. Choose bench flashing if the tractor is derated from high soot and you cannot reset it, or if the handheld cannot connect because of heavy CAN bus traffic.
Q2How long does it take?+
With the handheld, your tuned file comes back in about 2 hours after you send the stock read. A bench flashed ECM is written and shipped back the next day, plus transit each way.
Q3What do I do with the DPF?+
Hollow it out or put a straight pipe in its place once the new file is loaded. These tractors have no DEF or SCR, so nothing else changes.
Q4What is the difference between Stage 1 and Stage 2?+
Stage 1 is aimed at fuel economy with a small torque gain, about 10% more power. Stage 2 is aimed at performance, about 20% more power, and still improves economy under load.
Q5Can John Deere overwrite the tune?+
A dealer reflash or software update can replace our file. Read our OTA statement before connecting the tractor to dealer service tools.
Q6When will my kit ship?+
Handheld kits usually ship the next business day across the US and Canada. Expedited orders placed after 12 PM ET go out the following day.
Q7Disclaimer+
For off-road agricultural use only. Not for tractors registered for road use. Check the laws in your province or state before you order.
Why Reimer Tuning
Since 2014 our Canadian team has written tuning software for farm machinery in house. Whether you flash with the handheld or send us the ECM, every Interim Tier 4 Deere file carries a 1 year software warranty and real phone support.
Off-road use only. Not for machines registered for highway use. Buyers are responsible for knowing their provincial or state legislation. All sales final.

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$1,850.00