New Holland

New Holland 6640

The New Holland 6640 is a utility tractor produced from 1996 to 1998 as part of the PowerStar 40 Series. It was built in Basildon, England and originally priced at $33,400 in 1998. The tractor is powered by a Ford 5.0L 4-cylinder diesel engine delivering 85 hp net and 90.7 hp gross. Transmission options include 8-speed constant mesh, 16-speed two-speed power shift, 12-speed synchronized, and 16-speed four-speed power shift. It features 4x2 or optional 4x4 drive, mechanical or electro-hydraulic differential lock, and various hydraulic and hitch options. The tractor has a wheelbase of 93 inches, weighs between 7099 and 9121 pounds depending on configuration, and offers optional Comfort Command Cab with air-conditioning. The PTO is independent with 540 rpm standard and optional 540/1000 rpm. Electrical system is negative ground with alternator charging. The 6640 shares many components with the Ford 6640 and is compatible with front-end loader attachments.
Power90 hp
Founded1996 - 1998
Model6640

Technical Specifications

Detailed specifications and technical data for New Holland 6640

Power
Engine (net)85 hp (63.4 kW)
PTO (tested)77.13 hp (57.5 kW)
PTO (claimed)76 hp (56.7 kW)
Engine (gross)90.7 hp (67.6 kW)
Drawbar (tested)67.18 hp (50.1 kW)
Engine
Typediesel
ModelFord Genesis
Torque337 lb-ft (457.0 Nm)
Coolingliquid-cooled
Idle RPM725-2375
Cylinders4-cylinder 8-valve
Fuel tank25 gal (94.6 L), 52.7 gal (ROPS optional) (199.5 L), 46.9 gal (cab optional) (177.5 L)
Rated RPM2200
Torque RPM1200
Air cleanerdual paper elements
Bore/Stroke4.40x5.00 inches (112 x 127 mm)
Power (net)85 hp (63.4 kW)
Displacement304 ci (5.0 L)
Firing order1-3-4-2
Oil capacity12.1 qts (11.5 L)
Power (gross)90.7 hp (67.6 kW)
Starter volts12
Coolant capacity15.3 qts (14.5 L), 16.9 qts with cab (16.0 L)
Compression ratio17.5:1
Intake valve clearance0.016 inches (cold) (0.406 mm)
Exhaust valve clearance0.019 inches (cold) (0.483 mm)
Electrical
Groundnegative
Battery CCA800
Battery volts12
Cab Batteries2
ROPS Batteries1
Charging systemalternator
Cab Charging amps100
ROPS Charging amps55
Hydraulics
Typeopen center (S/SL), closed center load sensing (SLE)
Valves1 to 4
Pump flow18.2 gpm (68.9 lpm), 21 gpm (SLE) (79.5 lpm)
Steering pressure2100 psi (144.8 bar)
Mechanical
ROPSTwo-post foldable ROPS. Straddle-mount (6640 S) or raised deck (SL/SLE). Comfort Command Cab optional with air-conditioning (SL/SLE).
Drive4x2 2WD, 4x4 MFWD 4WD (optional)
Brakesmechanical (S), hydraulic wet disc (SL/SLE)
Final drivesinboard planetary
Power steeringYes
Differential lockmechanical (S), electro-hydraulic (SL/SLE)
Production
TypeUtility tractor
SeriesPowerStar 40 Series
Built inBasildon, England
Original price$33,400 in 1998
Years produced1996 - 1998
Attachments
Optionsfront-end loader
Transmission
Options8-speed constant mesh, 16-speed two-speed power shift, 12-speed synchronized, 16-speed four-speed power shift
Dual Power
Typetwo-speed power shift
Gears16 forward and 4 reverse
NotesDual 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.
Clutchdry disc
Oil capacity69.6 qts (65.9 L)
EconoShift
Typeconstant mesh
Gears8 forward and 2 reverse
NotesFour 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.
Clutchdry disc
Oil capacity69.6 qts (65.9 L)
SynchroShift
Typesynchronized
Gears12 forward and reverse
NotesFour 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.
Clutchdry disc
ElectroShift/Pulse Command
Typefour-speed power shift
Gears16 forward and reverse
Clutchwet disc
Tractor hitch
ControlPosition control and top-link draft sensing. Electronic lower-link sensing optional on 6640 SLE.
Rear TypeII
Rear lift (at 24"/610mm)4200 lbs (1905 kg), 4439 lbs (optional) (2013 kg), 6210 lbs (SLE) (2816 kg), 6564 lbs (SLE optional) (2977 kg)
Serial Numbers
1991BC68791
1992BD02865
1993BD35935
1994BD65544
1995BD98440
1996021630B
1997056502B
1998083503B
LocationData plate inside hood.
Dimensions & Tires
Length162 inches (411 cm)
Weight7099 to 9121 pounds
2WD Width77 inches (195 cm)
4WD Width80 inches (203 cm)
Ballasted10,368 lbs (4702 kg)
Operating8,135 lbs (4WD ROPS) (3690 kg)
Rear tire16.9-30
Wheelbase93 inches (236 cm)
Front tire7.50-16
Height Cab107 inches (271 cm)
Height Hood67 inches (170 cm)
Height Exhaust112 inches (284 cm)
2WD Cab Shipping8,129 lbs (3687 kg)
4WD Cab Shipping9,121 lbs (4137 kg)
2WD ROPS Shipping7,099 lbs (3220 kg)
4WD ROPS Shipping8,091 lbs (3670 kg)
2WD Clearance (front axle)22 inches (55 cm)
4WD Clearance (front axle)20 inches (50 cm)
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540, 540/1000 Optional