2011-Present JCB Fastrac Reflash

From $1,850.00
Reflash Options
Model
Tooling
$1,850.00
$1,850.00
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2011+ JCB Fastrac DEF / SCR Delete Tune

A Fastrac earns its keep at speed, on the road between fields and pulling hard once it gets there. A DEF fault that cuts power undoes all of that. Across the 4000, 7000 and 8000 Series, our Reflash Master handheld plugs into the tractor and loads a file that shuts off DEF dosing and SCR monitoring, with Stage 1 available for about 10% more power. We ship all across the US and Canada.

FitsFastrac 4000 · 7000 · 8000
SystemsDEF / SCR
Years2011–present
MethodReflash Master handheld
TurnaroundTuned file in 2 hours
PowerStage 1 · +10%

Stage 1 horsepower · JCB 8330

Stock348HP
 
Factory rating
Stage 1383HP
 
+35 hp · +10%

Based on an 8330 rated at 348 hp. The 4000 and 7000 Series pick up a similar 10% over their own ratings, enough to hold transport speed on a grade with a loaded trailer.

 

Kit includes

01Reflash Master handheld device
02USB cable and diagnostic cable
03Quick Reference Guide
04Reflash Master Client software
EXHAUST Aftertreatment stays on the tractor Nothing gets cut or unbolted. The SCR housing remains in place and every change is made in the engine software.

Handheld tuning process

STEP 01OrderChoose the DEF delete on its own or with Stage 1. Most kits ship the next business day.
STEP 02ReadConnect the handheld at the Fastrac’s diagnostic port and save the factory ECM file.
STEP 03SendUpload the file through the client software. Your tuned file is back in about 2 hours.
STEP 04WriteLoad the new file, cycle the key and the tractor is ready to work.
VIDEO TUTORIALSee a handheld reflash step by stepWatch →

Fastrac models it fits

JCB Fastrac tractors built from 2011 to today.

4000 SeriesMid-size
416041904220
7000 SeriesMid-size
7170720072307270
8000 SeriesHigh horsepower
82908330

Not sure about your build year? Email us the serial number from the tractor’s frame plate and we will confirm the kit fits before you order.

Why delete the DEF and SCR on a JCB Fastrac?

DEF

Diesel exhaust fluid

A Fastrac on hauling duty can put on a lot of hours and road miles in a week, and DEF goes with it. Keeping fluid on hand at the yard and in the field, keeping it clean, and keeping it from freezing in the shoulder seasons all add work. One bad fill or a gelled line sets a quality fault, and a derated Fastrac crawling down the road costs you the speed you bought it for. Removing DEF removes the fluid, the tank heaters and the dosing pump from the list.

SCR

Selective catalytic reduction

The SCR catalyst depends on NOx sensors and a dosing injector reporting correctly the whole time the tractor runs. Road vibration and heat cycles from switching between transport and field work wear those parts, and a sensor that drifts or an injector that crusts over starts a countdown to reduced power. With SCR monitoring off in the file, a failing sensor no longer slows the tractor.

One kit for every Fastrac series

A 4160 on the farm or an 8330 hauling silage, the handheld works the same way. Each file is written from the ECM read you send us and matched to the software your tractor left the factory with.

01Holds speed on hillsStage 1 keeps a loaded trailer moving up grades without dropping a gear.
02Stronger in the fieldExtra torque keeps a heavy implement pulling at your working speed.
03Factory file savedThe handheld stores the original calibration so it can be put back later.

Frequently asked questions

Q1Which Fastrac models does this kit cover?+

2011 and newer 4000 Series (4160, 4190, 4220), 7000 Series (7170, 7200, 7230, 7270) and 8000 Series (8290, 8330) Fastracs.

Q2Do I need to remove any exhaust parts?+

No. The file only switches off DEF dosing and SCR monitoring. The aftertreatment housing stays bolted on, so the tractor looks the same from the outside.

Q3What happens to the DEF tank after the tune?+

Drain the tank, then flush washer fluid through the tank, pump and lines. That stops leftover DEF from drying into crystals that can block the system.

Q4How much does Stage 1 add on an 8330?+

About 10%. An 8330 at 348 hp comes out near 383 hp. A 4160 or 7230 gains the same share over its own rating. Stage 1 is the only power level offered for the Fastrac.

Q5Will extra horsepower let me run faster in the field?+

Often, yes. With more power on tap the Fastrac holds its working speed with a heavy implement or a full trailer behind it, so you can cover more acres or haul more loads per hour. Fuel per hour may tick up, but fuel per acre usually stays level or drops.

Q6Can I tune a second Fastrac with the same handheld?+

Yes. The first flash locks the Reflash Master to that tractor’s VIN. Call us when you want to add another machine, and we unlock the handheld and supply a new file as a separate purchase.

Q7Disclaimer+

For off-road agricultural use only. Not for tractors registered for highway use. Know your state or provincial laws before you order.

Why Reimer Tuning

Reimer Tuning is a Canadian company that has built engine files for farm and construction equipment since 2014. Our own team writes each Fastrac file, and every one carries 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-Present JCB Fastrac Reflash

$1,850.00

Questions about this product?
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