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Years in Production / 1996–1998
New Holland
7840
Explore the specifications, hardware, and original references for the New Holland 7840.
100hp
Engine estimate · from PTO
MFWD Optional
Drive
1996–1998
Production years
New Holland
Manufacturer
7840 / 01
At a glance
Overview
1996 - 1998
PowerStar 40 Series
Row-Crop tractor
Production
Row-Crop tractor
Built in Basildon, England
- Manufacturer
- New Holland
- Original Price
- $35,650 (1996)
Mechanical
Power steering
Two-post foldable ROPS with flat-deck platform. Comfort Command Cab optional with air-conditioning (SL/SLE).
- Drive
- 4x2 2WD
- Drive
- 4x4 MFWD 4WD (optional)
- Final Drives
- inboard planetary
- Differential Lock
- electro-hydraulic (SLE)
- Brakes
- mechanical (S)
- Brakes
- hydraulic wet disc (SL/SLE)
Hydraulics
- Type
- open center (S/SL)
- Type
- closed center load sensing (SLE)
- Valves
- 1 to 4
- Pump Flow
- 17.4 gpm65.9 lpm
- Pump Flow
- 20 gpm (SLE)75.7 lpm
- Steering Press
- 2100 psi144.8 bar
Hitch
- Rear Type
- II
- Control
- Position control and top-link draft sensing. Electronic lower-link sensing optional on 7840 SLE.
- Rear Lift At24610mm
- 6,210 lbs (SL)2816 kg
- Rear Lift At24610mm
- 8,240 lbs (SL optional)3737 kg
- Rear Lift At24610mm
- 6,564 lbs (SLE)2977 kg
- Rear Lift At24610mm
- 8,710 lbs (SLE optional)3950 kg
Pto
- Rear Pto
- independent
- Rear Type
- 540/1000
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 55 (ROPS)
- Charging Amps
- 100 (cab)
- Batteries
- 1 (ROPS)
- Batteries
- 2 (cab)
- Battery Cca
- 800
- Battery Volts
- 12
7840 / 02
Under the hood
Engine Detail
Ford Genesis
diesel
6-cylinder 12-valve
liquid-cooled
- Displacement
- 401 ci6.6 L
- Bore Stroke
- 4.40x4.40 inches112 x 112 mm
- Compression Ratio
- 17.5:1
- Rated Rpm
- 2100
- Idle Rpm
- 725-2275
- Firing Order
- 1-5-3-6-2-4
- Starter Volts
- 12
- Coolant Capacity
- 21.1 qts20.0 L
- Coolant Capacity
- 22.7 qts (cab)21.5 L
- Intake Valve Clearance
- 0.016 inches (cold)0.406 mm
- Exhaust Valve Clearance
- 0.019 inches (cold)0.483 mm
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled
- Oil Capacity
- 22.1 qts20.9 L
Engine Options
Ford 6.6L 6-cyl diesel
- Fuel Tank
- 57.5 gal217.6 L
7840 / 03
Gears & controls
Transmission (Option 1)
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 7840S.
- Transmission
- EconoShift
- Transmission Type
- constant mesh
- Gears
- 8 forward and 2 reverse
- Clutch
- dry disc
- Oil Capacity
- 69.6 qts65.9 L
- Speeds Description
- With 16.9-34 rear tires.
Transmission (Option 2)
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 7840S.
- Transmission
- Dual Power
- Transmission Type
- two-speed power shift
- Gears
- 16 forward and 4 reverse
- Clutch
- dry disc
- Oil Capacity
- 69.6 qts65.9 L
- Speeds Description
- With 16.9-34 rear tires.
Transmission (Option 3)
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. Sychronized shuttle shifting. The 12-speed SynchroShift was standard on the 7840 SL. Dual power was an option with the SynchroShift, turning it into a 24-speed transmission.
- Transmission
- SynchroShift
- Transmission Type
- synchronized
- Gears
- 12 forward and reverse
- Clutch
- dry disc
- Speeds Description
- With 16.9-38 rear tires.
Transmission (Option 4)
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 7840 SLE.
- Transmission
- ElectroShift/Pulse Command
- Transmission Type
- four-speed power shift
- Gears
- 16 forward and reverse
- Clutch
- wet disc
- Oil Capacity
- 64 qts60.6 L
- Speeds Description
- With 16.9-38 rear tires.
Transmission Options
8-speed constant mesh
16-speed two-speed power shift
12-speed synchronized
16-speed four-speed power shift
7840 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 176 in447 cm
- Width
- 83 in210 cm
- Height (cab)
- 110 in279 cm
- Wheelbase
- 103 in261 cm
Dimensions And Tires
- 2wd Wheelbase
- 106 inches269 cm
- 4wd Wheelbase
- 103 inches261 cm
- Weight
- 8076 to 10274 pounds
- Front Tire
- 10.00-16
- Rear Tire
- 18.4-34
Tires And Tracks
- Front Ag
- 10.00-16
- Rear Ag
- 18.4-34
7840 / 05
Tractor Photos
See it in action
Videos
Watch New Holland 7840 videos from their original YouTube creators.
7840 / 07
Tests (NTTL)
Nebraska Tractor Test 163
Diesel 16-speed 4WDSeptember 1992 - 1992,
PTO performance
Drawbar performance
- Id
- 163
- Power At Rated Engine Speed
- 90.4 hp67.4 kW
- Fuel Use
- 5.3 gal/hour20.1 l/hour
- Fuel Use
- 5.9 gal/hour22.3 l/hour
- Max Power
- 75.2 hp56.1 kW