John Deere

John Deere 8R 340

The John Deere 8R 340 is a row-crop tractor produced since 2019 as part of the 8R Series. It is built in Waterloo, Iowa, USA. The tractor features a John Deere 9.0L 6-cylinder turbocharged diesel engine with Tier IV emissions, delivering 340 hp rated power and up to 374 hp maximum power. It offers transmission options including a 23-speed full power shift and an infinitely variable transmission. The tractor includes four-wheel drive, inboard planetary final drives, and power steering. Hydraulics are closed-center pressure flow compensated with up to 84 gpm optional pump flow. The tractor hitch supports electro-hydraulic draft sensing with rear and front lift capacities. PTO options include independent rear and optional front PTO with electro-hydraulic wet disc clutches. Dimensions include a 120.1 inch wheelbase, 252.8 inch length, and a cab height of 137.8 inches. Standard tires are 420/85R34 front and 480/80R50 rear. Electrical system features a 250 amp alternator with optional 330 amp, two 12-volt batteries with 925 CCA each. Original price was $408,496 in 2020.

Power340 hp

Founded2019 -

Model8R 340

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Technical Specifications

Detailed specifications and technical data for John Deere 8R 340

Power

Engine (max)	374 hp (278.9 kW)
PTO (tested)	346.20 hp (258.2 kW)
PTO (claimed)	284 hp (211.8 kW)
Engine (gross)	340 hp (253.5 kW)
Drawbar (tested)	267.86 hp (199.7 kW)

Engine

Type	turbocharged diesel
Cooling	liquid-cooled
Starter	electric
Cylinders	6-cylinder
Emissions	Tier IV
Fuel tank	192 gal (726.7 L)
Rated RPM	2100
Bore/Stroke	4.66x5.35 inches (118 x 136 mm)
Compression	16.0:1
Fuel system	electronic high-pressure common rail
Displacement	549 ci (9.0 L)
Manufacturer	John Deere
Starter volts	12
Exhaust fluid (DEF)	9.8 gal (37.1 L)
Rated Power (gross)	340 hp (253.5 kW)
Maximum Power (gross)	374 hp (278.9 kW)

Variants

8R 340	wheeled
8RT 340	two-track
8RX 340	four-track

Electrical

Ground	negative
Batteries	2
Battery CCA	925
Battery Group	31
Battery volts	12
Charging amps	250 (330 Optional)
Charging system	alternator

Hydraulics

Type	closed-center pressure flow compensated
Pressure	2958 psi (204.0 bar)
SCV flow	35 gpm (rear) (132.5 lpm)
Pump flow	60 gpm (227.1 lpm)
Rear valves	4 to 6
Optional pump flow	84 gpm (317.9 lpm)

Mechanical

Cab	standard with air-conditioning
Final drives	inboard planetary
Power steering	yes
Four-wheel drive	yes

Production

Series	8R Series
Built in	Waterloo, Iowa, USA
Category	Row-Crop tractor
Original price	$408,496 in 2020
Production years	2019 -

References

Operator's Manual	8R Tractors (OMRE593195) published in 2021

Transmission

Type	full power shift
Gears	23 forward and 11 reverse
IVT Type	infinitely variable transmission
IVT Gears	infinite forward and reverse
Transmission	e23
Transmission options	23-speed full power shift, infinitely variable transmission

Tractor hitch

Control	electro-hydraulic draft sensing
Rear Type	IVN/III
Front Hitch	IIIN
Optional rear lift	15200 lbs (6894 kg)
Front lift (at ends)	11464 lbs (5200 kg)
Rear lift (at 24"/610mm)	20000 lbs (9072 kg)

Dimensions & Tires

Length	252.8 inches (642 cm)
Weight	27800 to 28530 pounds
Wheelbase	120.1 inches (305 cm)
Front tread	60 to 144 inches (152 to 365 cm)
Rear axle 1	4.72 by 100.4 inches (119 by 2550 mm)
Rear axle 2	4.72 by 118.5 inches (119 by 3009 mm)
Height (cab)	137.8 inches (350 cm) *Height with Group 49 tires, exclusive antennas and beacons.
Operating weight	28530 lbs (12941 kg) *Weight of power shift tractor with 480/80R50 duals.
Clearance (drawbar)	15.2 inches (38 cm)
Standard tires (ag)	Front: 420/85R34, Rear: 480/80R50
Clearance (rear axle)	31.5 inches (80 cm)
Weight (with IVT and ILS)	27800 lbs (12610 kg)

Power Take-off (PTO)

Clutch	electro-hydraulic wet disc
Rear PTO	independent
Front PTO	independent (Optional)
Rear PTO Type	1000 (1.75)
Front PTO Type	1000 (1.375)
Clutch (front PTO)	electro-hydraulic wet disc
Engine RPM (rear PTO)	1000@2003, 1000E@1596
Engine RPM (front PTO)	1000@2000