Search
Ford 820 vs Ford 840
Verdict: Ford 820 vs Ford 840
The Ford 820 and the Ford 840 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 40 hp. Ford 840 is the newer design (1957 vs 1955). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
Tune the fit score
Tell us about your operation
Fit & specs
Ford
62
Fit score
Best match
Clear
Ford
62
Fit score
Best match
Clear
Rated power
40 hp
40 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
FordReference
FordReference
LP gasReference
The Sherman under-over auxiliary transmission was available as a factory option on the 840. Tractors equipped with the transmission were marked 840S.Reference
Steering
power assist optionalReference
power assist optionalReference
Variants
820
no 3-point or hydraulicsReference
no 3-point or hydraulicsReference
840
four-speedReference
four-speedReference
850
transmission PTOReference
transmission PTOReference
860
live PTOReference
live PTOReference
Engine
Belt (claimed)
29.8 kWReference
29.8 kWReference
Plows
3Reference
3Reference
Displacement
2.8 LReference
2.8 LReference
Bore/Stroke
99 x 91 mmReference
99 x 91 mmReference
Air cleaner
oil bathReference
oil bathReference
Compression
8.0:1Reference
8.0:1Reference
Rated RPM
2200Reference
2200Reference
Firing order
1-2-4-3Reference
1-2-4-3Reference
Starter volts
6Reference
6Reference
Coolant capacity
14.2 LReference
14.2 LReference
Oil capacity
7.6 LReference
7.6 LReference
Transmission
Type
unsynchronized gearReference
unsynchronized gearReference
Gears
5 forward and 1 reverseReference
12 forward and 3 reverseReference
Clutch
dry discReference
dry discReference
Oil type
SAE 80 Mild EPReference
SAE 80 Mild EPReference
Transmission
—
ShermanReference
Capacities
Fuel
53.0 LReference
53.0 LReference
Rear axle
10.4 LReference
10.4 LReference
PTO & Hydraulics
Rear PTO
transmissionReference
transmissionReference
Rear PTO Type
540 (1.125)Reference
540 (1.125)Reference
Hydraulic system
—
7.6 LReference
Capacity
—
7.6 LReference
Pressure
—
137.9 barReference
Pump flow
—
18.2 lpmReference
Rear Type
—
IReference
Control
—
position and draft controlReference
Rear lift
—
567 kgReference
Dimensions
Wheelbase
189 cmReference
190 cmReference
Weight
2850 to 3400 poundsReference
2850 to 3400 poundsReference
Front tire
6.00-16Reference
6.00-16Reference
Rear tire
10-28Reference
12-28Reference
Ag front
6.00-16Reference
6.00-16Reference
Ag rear
10-28Reference
12-28Reference
Length
288 cmReference
309 cmReference
Width
164 cmReference
164 cmReference
Height
140 cmReference
150 cmReference
Ground clearance
48 cmReference
53 cmReference
Front tread
132 to 203 cmReference
132 to 193 cmReference
Rear tread
121 to 193 cmReference
132 to 193 cmReference
Shipping
1292 kgReference
1292 kgReference
Operating
1542 kgReference
1542 kgReference
Ballasted
3039 kgReference
3039 kgReference
820 Serial Number Location
820 Serial Numbers
1954
1Reference
1Reference
1955
10615Reference
10615Reference
1956
77271Reference
77271Reference
1957
116368Reference
116368Reference
Electrical
Ground
positiveReference
positiveReference
Charging system
generatorReference
generatorReference
Charging amps
20Reference
20Reference
Battery volts
6Reference
6Reference
Ford 840 attachments
840 Serial Number Location
840 Serial Numbers
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.