The Ford 3900 tractor specifications include engine power rated at 47 hp (35.0 kW), an 8-forward, 2-reverse transmission, and a listed weight of 4,766 lbs (2,161 kg).
Ford 3900 key specifications
Engine power
47 hp (35.0 kW)
Displacement
175 cu in (2.9 L)
Transmission
8-forward, 2-reverse
Fuel capacity
13 gal (49.2 L)
Weight
4,766 lbs (2,161 kg)
Wheelbase
77.6 inches (197 cm)
Rear PTO speed
540 rpm, 1.375-inch shaft
Ford 3900 industry comparison
See how this tractor compares across up to six main specifications using the low, average and high values for Ford farm and compact tractors in this specifications database.
Engine power47 hp
Low 13 hpAverage 96.2 hpHigh 360 hp
Displacement2.9 L
Low 0.7 LAverage 4.4 LHigh 14.8 L
Fuel capacity13 gal
Low 3.5 galAverage 40.3 galHigh 286 gal
Weight4,766 lbs
Low 1,344 lbsAverage 8,007.5 lbsHigh 32,500 lbs
Wheelbase77.6 in
Low 48 inAverage 89.4 inHigh 139 in
This model Ford farm and compact tractors average
Ford 3900 capacity chart
Compare the tractor's listed fuel, hydraulic and service-fluid capacities.
Maximum fuel capacity49.2 L
Engine oil7 L
Coolant10 L
Ford 3900 dimensions chart
Compare the main listed tractor dimensions using centimetres.
Length342 cm
Wheelbase197 cm
Width185 cm
ROPS height230 cm
Engine specifications
Bore/Stroke
4.20 × 4.20 inches (107 × 107 mm)
Rated RPM
2,000
Torque
132.4 lb-ft (179.5 Nm)
Torque RPM
1,200
Compression
16.3:1
Fuel system
indirect injection
Air cleaner
dry
Oil capacity
7.4 qt (7.0 L)
Coolant capacity
10.6 qt (10.0 L)
Starter
electric
Starter volts
12
Transmission options
Gears
8 forward and 2 reverse
Clutch
280 mm dry disc
Oil capacity
13.7 qt (13.0 L)
Transmission type
gear
PTO and hitch
Rear hitch category
Category I
Hitch control
position and draft control
Rear lift
3,417 lbs (1,549 kg)
Rear PTO
independent
PTO engine speed
540 PTO rpm at 1,800 engine rpm
Mechanical specifications
Differential lock
mechanical rear (optional)
Electrical specifications
Charging system
alternator
Charging amps
28
Battery volts
12
Battery AH
128
Dimensions and weight
Length
134.7 inches (342 cm)
Width
73.2 inches (185 cm)
ROPS height
90.6 inches (230 cm)
Tires and tread
Standard tires (ag)
Front: 6.00-19. Rear: 12.4/11-36
Note: Industry comparison values are calculated from models in this specifications database. Specifications can vary by year, market, configuration, tires and optional equipment. For official specifications, check the tractor’s original operator, service or parts manual.
