Ford 6810 Mark III

The Ford 6810 Mark III is a tractor produced by Ford. It is equipped with a 268.1 ci 4.4 L engine. The listed engine power is Diesel (net): 90 hp / 67.1 kW. Transmission: Dual Power. Operating weight: 7280 to 8760 pounds.

Engine Power

Diesel (net): 90 hp / 67.1 kW

Fuel & Capacities

21 gal 79.5 L

Transmission

Dual Power

Operating Weight

7280 to 8760 pounds

Overview

	1988 - 1991 10 Mark III Series

Production
Manufacturer	Ford

Ford 6810 Engine
Ford 4.4L 4-cyl diesel
ROPS Fuel tank	21 gal 79.5 L
Cab Fuel tank	28 gal 106.0 L
Engine details ...

Ford 6810 Transmission
16-speed
Transmission details ...

Ford 6810 Power
Engine (net)	90 hp 67.1 kW
PTO (claimed)	83 hp 61.9 kW

Mechanical
Two- or four-wheel drive
Final drives	planetary
Differential lock	mechanical rear
Power steering
Wet disc brakes
Four-post ROPS. Cab optional with air-conditioning.

Hydraulics
Type	open center with closed-center valves
Pressure	2500 psi 172.4 bar
Pump flow	18.2 gpm 68.9 lpm
SCV flow	14.5 gpm 54.9 lpm

Tractor hitch
Rear Type	II
Rear lift (at ends)	5874 lbs 2664 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540/1000 (1.375)
Engine RPM	540@1900
	1000@2060

Dimensions & Tires
2WD Wheelbase	87.5 inches 222 cm
4WD Wheelbase	88.9 inches 225 cm
Weight	7280 to 8760 pounds
Front tire	10.00-16
2WD Rear tire	18.4-34
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
ROPS Charging amps	45
Cab Charging amps	80
Battery volts	12
Battery AH	128

References

Generation III Tractors published in 1990, by Ford

Engine

Engine Detail — 268.1 ci / 4.4 L Diesel

Manufacturer	Ford
Configuration	turbocharged diesel, 4-cylinder, liquid-cooled
Displacement	268.1 ci 4.4 L
Bore/Stroke	4.40x4.40 inches 112 x 112 mm
Power (net)	90 hp 67.1 kW
Compression	16.3:1
Rated RPM	2070
Torque	264 lb-ft 358.0 Nm
Torque RPM	1400

Ford 6810 Engine

Transmission

Transmission — Dual Power

Transmission	Dual Power
Gears	16 forward and 8 reverse
Clutch	330mm disc
Four synchronized gears in two ranges, plus reverse range, with two-speed Dual Power power shift. Optional creeper range.
With 16.9-38 rear tires.

Dimensions

Ford 6810 Tires
2WD Standard tires (ag)	Front: 10.00-16. Rear: 18.4-34
4WD Standard tires (ag)	Front: 14.9-24. Rear: 18.4-34

Dimensions
2WD Wheelbase	87.5 inches 222 cm
4WD Wheelbase	88.9 inches 225 cm
2WD Length	145.2 inches 368 cm
4WD Length	153.1 inches 388 cm
2WD Ground clearance	17.3 inches 43 cm
4WD Ground clearance	15.2 inches 38 cm
2WD Front tread	52 to 890 inches 132 to 2260 cm
4WD Front tread	60 to 88 inches 152 to 223 cm
Rear tread	56 to 80 inches 142 to 203 cm

Ford 6810 Weight
2WD ROPS	7280 lbs 3302 kg
2WD Cab	7700 lbs 3492 kg
4WD ROPS	7920 lbs 3592 kg
4WD Cab	8760 lbs 3973 kg

Ford 6810 Height
	78.4 inches 199 cm
Cab	104.8 inches 266 cm
2WD Exhaust	110 inches 279 cm
4WD Exhaust	113 inches 287 cm

Photos

European Ford 6810 III.

Recommended Implements & Sizing Guide

Engineering recommendations for Ford 6810 Mark III based on its 90 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm)	Heavy Duty	Heavy primary tillage; semi-mounted hitch recommended.
Rotary Cutter / MowerMowing & Clearing	7 to 8 ft (84-96 in)2.1 - 2.4 m	Heavy Duty	Heavy-duty twin spindle cutter for overgrown acreage.
Rotary TillerSeedbed Prep	78 to 84 in200 - 215 cm	Heavy Duty	Heavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage	10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙	Heavy Duty	Aggressive residue cutting in corn/cotton stubble.
Hay BalerHay & Forage	4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机	Heavy Duty	Silage and dry hay; 540 RPM PTO with slip-clutch.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Ford 6810 Mark III.

Estimated Continuous Field Runtime: 4.5 hrs

Approximately 4.5 hours of continuous field operation at ~75% rated power on a full tank (21 gal / 79.5 L).

Estimated 75% Load Fuel Burn~4.7 gal/hr (17.7 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours