All 118 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production
Manufacturer
Ford
(no label)
Utility tractor
(no label)
Built in Basildon, England
(no label)
Original price was $33,400 in 1998
Engine
(no label)
Ford 5.0L 4-cyl diesel
Fuel tank
25 gal | 94.6 L
Fuel tank
52.7 gal (ROPS optional) | 199.5 L
Fuel tank
46.9 gal (cab optional) | 177.5 L
Transmission
(no label)
8-speed constant mesh
(no label)
16-speed two-speed power shift
(no label)
12-speed synchronized
(no label)
16-speed four-speed power shift
Power
Engine (gross)
90.7 hp | 67.6 kW
Engine (net)
85 hp | 63.4 kW
PTO (claimed)
76 hp | 56.7 kW
Drawbar (tested)
67.18 hp | 50.1 kW
PTO (tested)
77.13 hp | 57.5 kW
Mechanical
Drive
4x2 2WD
Drive
4x4 MFWD 4WD (optional)
Final drives
inboard planetary
Differential lock
mechanical (S)
Differential lock
electro-hydraulic (SL/SLE)
(no label)
Power steering
Brakes
mechanical (S)
Brakes
hydraulic wet disc (SL/SLE)
(no label)
Two-post foldable ROPS. Straddle-mount (6640 S) or raised deck (SL/SLE). Comfort Command Cab optional with air-conditioning (SL/SLE).
Hydraulics
Type
open center (S/SL)
Type
closed center load sensing (SLE)
Valves
1 to 4
Pump flow
18.2 gpm | 68.9 lpm
Pump flow
21 gpm (SLE) | 79.5 lpm
Steering press.
2100 psi | 144.8 bar
Hitch
Rear Type
II
Control
Position control and top-link draft sensing. Electronic lower-link sensing optional on 6640 SLE.
Rear lift (at 24"/610mm)
4200 lbs | 1905 kg
Rear lift (at 24"/610mm)
4439 lbs (optional) | 2013 kg
Rear lift (at 24"/610mm)
6210 lbs (SLE) | 2816 kg
Rear lift (at 24"/610mm)
6564 lbs (SLE optional) | 2977 kg
Pto
Rear PTO
independent
Rear PTO Type
540
Rear PTO Type
540/1000
Dimensions
Wheelbase
93 inches | 236 cm
Weight
7099 to 9121 pounds
Front tire
7.50-16
Rear tire
16.9-30
Electrical
Ground
negative
Charging system
alternator
ROPS Charging amps
55
Cab Charging amps
100
ROPS Batteries
1
Cab Batteries
2
Battery CCA
800
Battery volts
12
Engine
Engine detail
(no label)
Ford Genesis
(no label)
diesel
(no label)
4-cylinder 8-valve
(no label)
liquid-cooled
Displacement
304 ci | 5.0 L
Bore/Stroke
4.40x5.00 inches | 112 x 127 mm
Power (net)
85 hp | 63.4 kW
Power (gross)
90.7 hp | 67.6 kW
Air cleaner
dual paper elements
Compression
17.5:1
Rated RPM
2200
Idle RPM
725-2375
Torque
337 lb-ft | 457.0 Nm
Torque RPM
1200
Firing order
1-3-4-2
Starter volts
12
Coolant capacity (Coolant)
15.3 qts | 14.5 L
Coolant capacity (Coolant)
16.9 qts | 16.0 L
Intake valve clearance
0.016 inches (cold) | 0.406 mm
Exhaust valve clearance
0.019 inches (cold) | 0.483 mm
Engine oil
Oil capacity
12.1 qts | 11.5 L
Transmission
Transmission options
(no label)
8-speed constant mesh
(no label)
16-speed two-speed power shift
(no label)
12-speed synchronized
(no label)
16-speed four-speed power shift
Transmission
Transmission
EconoShift
Type
constant mesh
Gears
8 forward and 2 reverse
Clutch
dry disc
Oil capacity
69.6 qts | 65.9 L
(no label)
Four gears (1-4), plus reverse, in two ranges (L/H). Optional creeper provided a third range. Tractor must be stopped and clutch used to shift gears or range. The eight-speed transmission was only used on the 6640S.
Transmission
Dual Power
Type
two-speed power shift
Gears
16 forward and 4 reverse
Clutch
dry disc
Oil capacity
69.6 qts | 65.9 L
(no label)
Dual Power adds a two-speed power shift between direct drive and the lower Dual Power range to the basic eight-speed transmission. The Dual Power range is engaged by a switch on the dashboard. Dual Power was an option on the 6640S.
Transmission
SynchroShift
Type
synchronized
Gears
12 forward and reverse
Clutch
dry disc
(no label)
Four gears (1-4) in three ranges (L/M/H) with right-hand shuttle lever. Gear shifts are synchronized. Shifts between medium and high ranges are synchronized, but the tractor should be stopped to shift to or from low range. Synchronized shuttle shifting. The 12-speed SynchroShift was standard on the 6640 SL. Dual power was an option with the SynchroShift, turning it into a 24-speed transmission.
Transmission
ElectroShift/Pulse Command
Type
four-speed power shift
Gears
16 forward and reverse
Clutch
wet disc
Oil capacity
64 qts | 60.6 L
(no label)
Four power shift gears arranged in two synchronized ratio groups (1-4 and 5-8). Two synchronized ranges (low/high) and right-hand shuttle. Clutch must be used to shift range or move between the lower (1-4) and higher (5-8) gear ratio groups. Push-button power shifting between the four gears in a ratio group. Push-button de-clutching on the shuttle lever allow shifting without the foot clutch. The 16 power shift was standard on the 6640 SLE.