John Deere 790
The John Deere 790 is a tractor produced by John Deere. It is equipped with a 91.3 ci 1.5 L engine. The listed engine power is Diesel (gross): 30 hp / 22.4 kW. Transmission: 8 forward and 2 reverse. Operating weight: 787 lbs 356 kg.
Engine Power
Diesel (gross): 30 hp / 22.4 kW
Fuel & Capacities
6.3 gal
23.8 L
Transmission
8 forward and 2 reverse
Operating Weight
787 lbs
356 kg
Overview
 | 2000 - 2007
Model year 2000-20022003-2007
Compact Utility tractorYanmar built
Compact Utility tractor
Yanmar built |
|---|
Production | |
|---|---|
Distributor | John Deere |
Manufacturer | Yanmar |
Compact Utility tractor | |
Built in Japan | |
John Deere 790 Engine | |
|---|---|
Yanmar 1.5L 3-cyl diesel | |
Engine details ...  |
John Deere 790 Transmission | |
|---|---|
8-speed unsynchronized | |
Transmission details ...  |
John Deere 790 Power | |
|---|---|
Engine (gross) | 30 hp
22.4 kW |
PTO (claimed) | 26 hp
19.4 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
2WD Steering | manual |
4WD Steering | hydrostatic power |
Independent dry shoe brakes | |
ROPS | |
Capacity | |
|---|---|
Fuel | 6.3 gal
23.8 L |
Hydraulic system | 4 gal
15.1 L |
Front diff. | 2.32 qts
2.2 L |
Hydraulics | |
|---|---|
Type | open center |
Capacity | 4 gal
15.1 L |
Pressure | 2050 psi
141.3 bar |
Pump flow | 5.4 gpm
20.4 lpm |
Steering flow | 4.2 gpm
15.9 lpm |
Steering press. | 2050 psi
141.3 bar |
Tractor hitch | |
|---|---|
Rear Type | I |
Rear lift (at 24"/610mm) | 815 lbs
369 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | transmission |
live (two-stage clutch) | |
Rear PTO Type | 540 |
Mid PTO Type | 2100 |
Dimensions & Tires | |
|---|---|
Wheelbase | 60.4 inches
153 cm |
Weight | 1930 to 2105 pounds |
Front tire | 6.00-12 |
Rear tire | 12.4-16 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 20 |
Battery CCA | 500 |
Battery volts | 12 |
Battery Group | 45 |
References | |
|---|---|
 | |
Grounds Care Equipment Purchasing Guide published in 1999, by John Deere | |
Grounds Care Equipment Purchasing Guide published in 2000, by John Deere | |
Grounds Care Equipment Purchasing Guide published in 2001, by John Deere | |
4000 Series Product Information Handbook published in 2000, by John Deere | |
Commercial & Consumer Equipment Purchase Guide published in 2005, by John Deere |
Engine
Engine Detail — 91.3 ci / 1.5 L Diesel
Manufacturer | Yanmar 3TNE84 |
Fuel Type | Diesel |
Configuration | 3-cylinder, liquid-cooled |
The 91 cubic inch engine was used through serial number 592445. | |
Displacement | 91.3 ci
1.5 L |
Bore/Stroke | 3.31x3.54 inches
84 x 90 mm |
Power (gross) | 30 hp
22.4 kW |
Air cleaner | dry |
Compression | 18:1 |
Rated RPM | 2600 |
Starter volts | 12 |
Oil capacity | 4.2 qts
4.0 L |
Transmission
Transmission — 8 forward and 2 reverse unsynchronized
Type | unsynchronized |
Gears | 8 forward and 2 reverse |
Oil capacity | 16 qts
15.1 L |
Oil type | Low Viscosity HY-Gard |
Transmission operated with gear shift lever, range shift lever, and clutch. Gear shift lever selects one of four gears or reverse. Range shift lever selects high or low range. Tractor must be stopped, and clutch used, to shift gear or range. | |
With 11.2-24 rear tires | |
 | |
Low Viscosity HY-Gard |
|---|
Dimensions
John Deere 790 Tires | |
|---|---|
Ag front | 6.00-12 (early) |
2WD Ag front | 5.00-15 |
4WD Ag front | 7.00-14 |
Ag rear | 12.4-16 (early) |
11.2-24 | |
Lawn/turf front | 25x8.50-14 |
Lawn/turf rear | 13.6-16 |
Industrial front | 25x8.50-14 |
Industrial rear | 15.0-19.6 |
Dimensions | |
|---|---|
Wheelbase | 60.4 inches
153 cm |
Length | 87.8 inches
223 cm |
111 inches (with 3-point)
281 cm | |
Height (hood) | 51.2 inches
130 cm |
Height (ROPS) | 82 inches
208 cm |
2WD Weight | 1,930 lbs
875 kg |
4WD Weight | 2,105 lbs
954 kg |
Attachments
Attachment overview | |
|---|---|
60" mid-mount mower deck | |
Blade | |
John Deere 70 loader | |
John Deere 419 loader | |
Backhoe |
60" Mower deck | |
|---|---|
Type | mid-mount John Deere |
3-blade with hydraulic lift | |
Cutting width | 60 inches
152 cm |
Weight | 325 lbs
147 kg |
Overall width | 72.5 inches
184 cm |
Cut height | 1 to 8.75 inch
2 to 22 cm |
John Deere 7 Backhoe | |
|---|---|
Backhoe type | John Deere 7 Backhoe |
Weight | 787 lbs
356 kg |
2-Foot flat digging depth | 90 inches
228 cm |
Reach from pivot | 114 inches
289 cm |
Loading height | 70 inches
177 cm |
Bucket force | 1,945 lbs
882 kg |
Dipperstick force | 1,095 lbs
496 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 790 based on its 30 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
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 John Deere 790.
Estimated Continuous Field Runtime: 4 hrs
Approximately 4 hours of continuous field operation at ~75% rated power on a full tank (6.3 gal / 23.8 L).
Estimated 75% Load Fuel Burn~1.6 gal/hr (5.9 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
John Deere 790 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 790.
Converted Equivalents:
Horsepower (HP)30 hp
Kilowatts (kW)22.4 kW
Metric Horsepower (PS / CV)30.4 PS
Direct Competitor Comparison
Compare John Deere 790 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 790
Engine Power:Diesel (gross): 30 hp / 22.4 kW
★ Baseline Reference
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