Ford

3900

Farm tractor · 1975–1981 · 47 hp

The Ford 3900 is a farm tractor manufactured from 1975 to 1981. It features a Ford engine, and standard steering. The transmission is a gear type with 8 forward and 2 reverse.

Engine

EngineFord
Fuel Typediesel
Cylinders3
Coolingliquid-cooled
Displacement175 ci (2.9 L)
Bore4.2 in (107 mm)
Stroke4.2 in (107 mm)
Compression Ratio16.3
Power Gross47 hp (35 kW)
Torque Peak132.4 lb-ft (179.5 Nm)
Torque Peak1,200 RPM
Air Cleanerdry
Fuel Systemindirect injection
Starter Volts12
Starter Typeelectric
Oil Capacity7.4 qts (7 L)
Coolant Capacity10.6 qts (10 L)
ManufacturerFord
Rated2,000 RPM

Transmission

Transmission Typegear
Gears8 forward and 2 reverse
Clutch280mm dry disc
Oil Capacity13.7 qts (13 L)
Available Options8-speed gear

PTO

Rear Typeindependent

Hitch

Rear TypeI
Rear Lift3,417 lbs (1,549 kg)
Hitch Controlposition and draft control

Dimensions

Length134.7 in (342 cm)
Width73.2 in (185 cm)
Height Rops90.6 in (230 cm)
Wheelbase77.6 in (197 cm)

Weight

Weight4,766 lbs (2,161 kg)

Tires & Tracks

Front Ag6.00x19
Rear Ag12.4/11x36

Fuel

Capacity13 gal (49.2 L)

Steering

Typestandard

Cab

Cabavailable

Compatible Implements

ModelTypeWidthMin HP
Land Pride BB3584Box Blades84"45 hp
Land Pride BB3596Box Blades96"45 hp
Land Pride BB3578Box Blades78"45 hp
Land Pride BB1272Box Blades72"
Land Pride BB1260Box Blades60"
Land Pride BB1248Box Blades48"
Land Pride BB1566Box Blades66"
Land Pride BB1572Box Blades72"
Land Pride BB1560Box Blades60"
Land Pride BB1266Box Blades66"
Land Pride BB1254Box Blades54"

Checked: 3-point hitch category, PTO horsepower. Not checked: PTO speed (540/1000), hydraulic flow, 3-point lift capacity, rear remotes, ballast.

These implements meet this tractor's hitch and PTO-HP requirements — this is not a full compatibility guarantee. Confirm the remaining specs with your dealer before purchasing.