Ford 7840

Name: Ford 7840
Brand: Ford

Power

100 hp[P] hp

Production

1991-1995

Engine

6-cylinder 12-valve

Transmission

EconoShift

Drive

2WD/4WD

100–140 HP 1990s

From the same series:

7740

8240

Introduction

Ford 7840 Row-Crop Tractor

The Ford 7840 is a row-crop tractor produced by Ford in Basildon, England, between 1991 and 1995. As part of the 40 series, it was designed to serve as a versatile utility tractor for various agricultural operations, offering both 2WD and optional MFWD 4WD configurations.

Engine and Performance

The tractor is powered by a 6-cylinder, 12-valve, liquid-cooled engine with a displacement of 401 cubic inches (6.6 liters). It operates at a rated speed of 2100 RPM and produces approximately 100 horsepower. The engine utilizes a 1-5-3-6-2-4 firing order and requires specific valve clearances, with 0.016 inches for intake and 0.019 inches for exhaust when cold.

Transmission Systems

The 7840 features several transmission variants depending on the model specification. Options include the 8-speed constant mesh EconoShift, the 16-speed Dual Power system, the 12-speed synchronized SynchroShift, and the 16-speed ElectroShift/Pulse Command. These systems utilize either dry or wet disc clutches to manage power delivery, with the ElectroShift providing push-button power shifting across two synchronized ratio groups.

Hydraulics and Hitch

The hydraulic system is available in open-center (S/SL) or closed-center load-sensing (SLE) configurations, providing a pump flow of up to 20 gpm (75.7 lpm) on the SLE model. The rear hitch is a Category II type featuring position control and top-link draft sensing. Electronic lower-link sensing is available as an option on the 7840 SLE, with rear lift capacities ranging from 6,210 lbs to 8,710 lbs depending on the specific model and configuration.

Dimensions and Operator Environment

The tractor is built on a wheelbase of 106 inches for the 2WD model and 103 inches for the 4WD version. Operators can choose between a two-post foldable ROPS with a flat-deck platform or the Comfort Command Cab, which includes air conditioning on SL/SLE models. Steering is power-assisted, and braking is handled by mechanical wet disc brakes on SL/SLE models.

Conclusion

"The Ford 7840 is a robust and highly configurable row-crop tractor suitable for a wide range of field tasks. Its diverse transmission options and hydraulic capabilities allow it to be tailored to specific operational needs, making it a dependable machine for professional agricultural use."

Introduction

Production Information of Ford, 7840

The production information of the tractor (7840) includes details about its manufacturing.

Row-Crop tractor

Built in Basildon, England


Manufacturer	Ford
Original price	$35,650 (1996)

Dimension and Tires Information of Ford, 7840

This section sums up the dimension and tires information of the tractor.


2WD Wheelbase	106 inches [269 cm]
2WD Clearance (front axle)	23 inches [58 cm]
Width	83 inches [210 cm]
4WD Wheelbase	103 inches [261 cm]
4WD Clearance (front axle)	22 inches [55 cm]
Length	176 inches [447 cm]


Ag front	10.00-16
Ag rear	18.4-34

Engine Specifications of Ford, 7840

Get the specifications for the engine and if different options are available.

Liquid-cooled

6-cylinder 12-valve


Exhaust valve clearance	0.019 inches (cold) [0.483 mm]
Rated RPM	2100
Idle RPM	725-2275
Starter volts	12
Firing order	1-5-3-6-2-4
Displacement	401 ci [6.6 L]
Oil capacity	22.1 qts [20.9 L]
Compression	17.5:1
Bore/Stroke	4.40x4.40 inches [112 x 112 mm]
Intake valve clearance	0.016 inches (cold) [0.406 mm]
	22.7 qts (cab) [21.5 L]
Coolant capacity	21.1 qts [20.0 L]

Transmission Information of Ford, 7840Y

Discover all variants of transmission available for this tractor model.

Transmission variants 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
Oil capacity	69.6 qts [65.9 L]
Clutch	Dry disc
Type	Constant mesh
Gears	8 forward and 2 reverse

Transmission variants 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
Oil capacity	69.6 qts [65.9 L]
Clutch	Dry disc
Type	Two-speed power shift
Gears	16 forward and 4 reverse

Transmission variants 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
Clutch	Dry disc
Type	Synchronized
Gears	12 forward and reverse

Transmission variants 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
Oil capacity	64 qts [60.6 L]
Clutch	Wet disc
Type	Four-speed power shift
Gears	16 forward and reverse

8-speed constant mesh

16-speed four-speed power shift

16-speed two-speed power shift

12-speed synchronized

Mechanical Specs of Ford, 7840Y

This section summarizes all mechanical information such as the brake system and other specifications.

Power steering

Two-post foldable ROPS with flat-deck platform. Comfort Command Cab optional with air-conditioning (SL/SLE).


	Hydraulic wet disc (SL/SLE)
Drive	4x2 2WD
Differential lock	Electro-hydraulic (SLE)
	4x4 MFWD 4WD (optional)
Brakes	Mechanical (S)
Final drives	Inboard planetary

Power Information of Ford, 7840Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Rear PTO Type	540/1000

Hydraulics Specifications of Ford, 7840

Hydraulic system type, pressure, pump flow and valves.


Type	Open center (S/SL)
	20 gpm (SLE) [75.7 lpm]
Pump flow	17.4 gpm [65.9 lpm]
	Closed center load sensing (SLE)
Steering press.	2100 psi [144.8 bar]
Valves	1 to 4

Three-Point Hitch of Ford, 7840

Hitch category and rear/front lift capacity.


Rear Type	II
	6,564 lbs (SLE) [2977 kg]
	8,240 lbs (SL optional) [3737 kg]
Control	Position control and top-link draft sensing. Electronic lower-link sensing optional on 7840 SLE.
	8,710 lbs (SLE optional) [3950 kg]
Rear lift (at 24"/610mm)	6,210 lbs (SL) [2816 kg]

Electrical System of Ford, 7840

Battery voltage, charging system and ground.


Battery CCA	800
Ground	Negative
Batteries	1 (ROPS)
	100 (cab)
Charging system	Alternator
Battery volts	12
	2 (cab)
Charging amps	55 (ROPS)

Frequently asked questions

How much horsepower does the Ford 7840 have?

The Ford 7840 delivers 100 hp[P] HP.

What years was the Ford 7840 produced?

The Ford 7840 was produced in 1991-1995.

What engine does the Ford 7840 have?

The Ford 7840 is powered by a 6-cylinder 12-valve engine.

What transmission does the Ford 7840 use?

The Ford 7840 uses a EconoShift transmission.

Is the Ford 7840 4WD?

The Ford 7840 is available in 2WD/4WD.

More Ford models

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