Hesston 780
The Hesston 780 is a tractor produced by Hesston. It is equipped with a 224 ci 3.7 L engine. The listed engine power is 70.57 hp 52.6 kW. Transmission: 8 forward and reverse. Operating weight: 5495 to 6200 pounds.
Engine Power
70.57 hp
52.6 kW
Fuel & Capacities
21.1 gal
79.9 L
Transmission
8 forward and reverse
Operating Weight
5495 to 6200 pounds
Overview
 | 1981 - 1984
80 SeriesUtility tractor
80 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Hesston (a part of Fiat) |
Utility tractor | |
Original price was $23,500 in 1984 | |
Variants | |
|---|---|
780 | 2WD |
780DT | 4WD |
Hesston 780 Engine | |
|---|---|
Fiat 3.7L 4-cyl diesel | |
Fuel tank | 21.1 gal
79.9 L |
Engine details ...  | |
Hesston 780 Power | |
|---|---|
PTO (claimed) | 70 hp
52.2 kW |
Drawbar (tested) | 62.88 hp
46.9 kW |
PTO (tested) | 70.57 hp
52.6 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Power steering | |
Differential hydraulic wet disc brakes | |
ROPS standard, Supercomfort cab optional with air conditioning. Optional radio, cassette, and CB radio. |
Hydraulics | |
|---|---|
Type | open center |
Pressure | 2702 psi
186.3 bar |
Valves | 2 |
Pump flow | 11 gpm
41.6 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
Wheelbase | 89 inches
226 cm |
Weight | 5495 to 6200 pounds |
Front tire | 7.50-16 |
Rear tire | 18.4-30 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Charging system | alternator |
Charging amps | 45 |
55 *The 55A alternator was used on tractors with cab and air-conditioning. | |
Battery volts | 12 |
References | |
|---|---|
 | |
80 Series Tractors - 50-90 PTO HP published in 1981, by Hesston |
Engine
Engine Detail — 224 ci / 3.7 L Diesel
Manufacturer | Fiat 8045 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 224 ci
3.7 L |
Bore/Stroke | 4.03x4.33 inches
102 x 110 mm |
Compression | 17:1 |
Rated RPM | 2500 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
8-speed partially synchronized | |
16-speed | |
8-speed mechanical shuttle |
Transmission — 8 forward and 2 reverse partially synchronized
Type | partially synchronized |
Gears | 8 forward and 2 reverse |
Four gears with high and low ranges provide eight forward speeds. Gears 3/4 are synchronized in both ranges. | |
With 18.4-30 rear tires. | |
 | |
Transmission — 16 forward and 4 reverse
Gears | 16 forward and 4 reverse |
Four gears with four ranges provides sixteen forward speeds. | |
With 18.4-30 rear tires. | |
 | |
Transmission — 8 forward and reverse mechanical shuttle
Type | mechanical shuttle |
Gears | 8 forward and reverse |
With 18.4-30 rear tires. | |
 | |
Dimensions
Hesston 780 Tires | |
|---|---|
Ag front | 7.50-16 (2WD) |
12.4-24 (4WD) | |
Ag rear | 18.4-30 |
Dimensions | |
|---|---|
Wheelbase | 89 inches
226 cm |
2WD Length | 135 inches
342 cm |
4WD Length | 144 inches
365 cm |
Hesston 780 Weight | |
|---|---|
2WD Operating | 5495 lbs
2492 kg |
4WD Operating | 6200 lbs
2812 kg |
Ballasted | 10100 lbs
4581 kg |
Hesston 780 Height | |
|---|---|
2WD Hood | 59.5 inches
151 cm |
4WD Hood | 60 inches
152 cm |
ROPS | 102.5 inches
260 cm |
Cab | 103.5 inches
262 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 1294: diesel 16-speed 2WD | |
NTTL 1386: diesel 8-speed 4WD |
Nebraska Tractor Test 1294 | |
|---|---|
Diesel 16-speed 2WD
October 19 - November 1, 1978
Link: Nebraska Tractor Test 1294 file | |
PTO performance | |
Power at rated engine speed | 70.36 hp
52.5 kW |
Fuel use | 4.7 gal/hour
17.8 l/hour |
Power at rated PTO speed | 66.30 hp
49.4 kW |
Fuel use | 4.3 gal/hour
16.3 l/hour |
Drawbar performance | |
Max power | 62.88 hp
46.9 kW |
Fuel use | 4.5 gal/hour
17.0 l/hour |
Gear 4N used for power test. | |
Nebraska Tractor Test 1386 | |
|---|---|
Diesel 8-speed 4WD
April 21 - 29, 1981
Link: Nebraska Tractor Test 1386 file | |
PTO performance | |
Power at rated engine speed | 70.57 hp
52.6 kW |
Fuel use | 4.4 gal/hour
16.7 l/hour |
Power at rated PTO speed | 66.67 hp
49.7 kW |
Fuel use | 4.0 gal/hour
15.1 l/hour |
Drawbar performance | |
Max power | 59.97 hp
44.7 kW |
Fuel use | 4.4 gal/hour
16.7 l/hour |
Attachments
Attachment overview | |
|---|---|
Hesston L340 loader | |
Hesston L340H loader |
Recommended Implements & Sizing Guide
Engineering recommendations for Hesston 780 based on its 70.57 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
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 | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
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 Hesston 780.
Estimated Continuous Field Runtime: 5.7 hrs
Approximately 5.7 hours of continuous field operation at ~75% rated power on a full tank (21.1 gal / 79.9 L).
Estimated 75% Load Fuel Burn~3.7 gal/hr (13.9 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
Hesston 780 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Hesston 780.
Converted Equivalents:
Horsepower (HP)70.6 hp
Kilowatts (kW)52.6 kW
Metric Horsepower (PS / CV)71.5 PS
Direct Competitor Comparison
Compare Hesston 780 against same-era industry alternatives in the same horsepower class.
Current Model
Hesston
Hesston 780
Engine Power:70.57 hp
52.6 kW
★ Baseline Reference
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