John Deere 4840 Specs, Price & Review 2022

John Deere 4840 Specs, Price & Review

A 2WD row-crop tractor from the Iron Horses line is the John Deere 4840. Between 1978 and 1982, John Deere produced this tractor in Waterloo, Iowa, in the United States.

A 7.6 L six-cylinder diesel engine and a full power shift transmission with 8 forward and 4 backward speeds are included with the JD 4840.

The John Deere engine was used in the John Deere 4840 row-crop tractor. It has a six-cylinder, turbocharged, intercooled diesel engine that is 7.6 L, 7,636 cm2, or 466.0 cu in, with cylinder bore and stroke measurements of 116.0 mm (4.57 in) and 121.0 mm (4.76 in) respectively.

The output power of this engine was 202.6 PS (149.0 kW; 200.0 HP).

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The John Deere 4840 has a 390.0 liter (103 US gal; 85.8 Imp. gal) fuel tank, Sound-Gard Cab, differential hydraulic wet disc brakes, and power steering.

john deere 4840

John Deere 4840 Price

John Deere 4840 Original Price: $60,000 (1982)

John Deere 4840 Serial Number

Location: The rear of the tractor.
1978: 1000
1979: 4233
1980: 7539
1981: 11042
1982: 14933

John Deere 4840 Specs

ENGINE

Engine Model John Deere 6466
Engine Type 4 Stroke six-cylinder direct injection turbocharged inter-cooled diesel
Number of Cylinders 6
Displacement, cu in (L) 466 (7.64)
Engine Bore, in (mm) 4.56 (116.0)
Engine Stroke, in (mm) 4.75 (121.0)
Aspiration Turbocharged
Rated Engine Power, hp (kW) 200.0 (148.1)
Rated Engine Speed, rpm 2200
Idle Speed, rpm 800-2400
Compression 15.5:1
Firing Order 1-5-3-6-2-4
Fuel System Direct injection
Air Cleaner Dual dry element
Fuel Tank Capacity, gal (L) 103.0 (390.0)
Oil Capacity, qts (L) 21.0 (19.9)
Coolant Capacity, qts (L) 40.0 (37.5)
Electrical System Rating, Volts 12
Charging System Alternator
Alternator Rating, Amps 90

POWER TAKE-OFF

PTO Operational Type Independent
PTO Horsepower, hp (kW) 180.0 (134.0)
PTO Clutch Hydraulic disc
PTO Speed, rpm 1000
PTO/Engine Speed, rpm 1000/2200
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TRANSMISSION

Transmission Type Power Shift
Gearbox Type 8F/4R, Full powershift
Number of Forwarding Gears 8
Number of Reverse Gears 4
Clutch Type Wet disc
Oil Capacity, qts (L) 66.3 (62.5)
Maximum Forward Speed, mph (kph) 18.6 (29.9)
Maximum Reverse Speed, mph (kph) 6.4 (10.3)

WHEELS AND TIRES

Drive Wheels 2WD 4×2
Steering Configuration Front steer
Steering System Power Steering
Brakes Type Differential hydraulic wet disc
Front Tire Size (Std) 11.0-16
Rear Tire Size (Std) 18.4-38
Front Tire Size (Opt) 16.5L-16.1
Rear Tire Size (Opt) 18.4-42
Front Tread Width, in (mm) 58-100 (1470-2540)
Rear Tread Width, in (mm) 60-131.5 (1520-3340)

HYDRAULIC SYSTEM

Hydraulic System Type Closed center
Implement Pump Flow, gpm (Lpm) 23.0 (87.1)
Hydraulic Pressure, Bar (psi) 157 (2275)
Hydraulic Capacity, gal (L) 16.5 (62.5)
Number of Standard Remote Valves 2/3
3-Point Hitch Category 3/3N
Standard Lift Capacity at lift pin, lb (kg) 8295 (3760)
Upper Link Pin Diameter, in (mm) 31.75 (1.25)
Upper Link Hole Diameter, in (mm) 32.00 (1.26)
Lower Link Pin Diameter, in (mm) 36.58 (1.44)
Lower Link Hole Diameter, in (mm) 37.34 (1.47)
Lower Hitch Point Span (3/3N), in (mm) 964.95 (37.99) / 825 (32.5)
Width of Ball, in (mm) 45 (1.77)
Pin Centerline (Lower to Upper), in (mm) 685 (27.0)
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DIMENSIONS AND WEIGHT

Wheelbase, in (mm) 118.5 (3000)
Length, in (mm) 177 (4490)
Height (Cab), in (mm) 117 (2970)
Overall Width, in (mm) 96 (2430)
Ground Clearance, in (mm) 14.9 (370)
Front Axle Clearance, in (mm) 26 (660)
Turning Radius, in (mm) 162 (4100)
Shipping Weight, lb (kg) 14900 (6760)
Operating Weight, lb (kg) 18000 (8165)
Ballasted Weight, lb (kg) 20370 (9240)

John Deere 4840 Review

That’s all there is to know about the John Deere 4840 Tractor Price, Specs, Review, and Key Features; nevertheless, if you have any questions about this topic, kindly put them in the comment section below. We will respond to your inquiry as soon as we can. 

John Deere 4840 FAQ

What horsepower is a John Deere 4840?

157 hp 117.1 kW

What year did John Deere make 4840?

1978-1982

What engine is in a John Deere 4840?

John Deere 4840 has a John Deere liquid-cooled engine