Fiat 850
The Fiat 850 is a tractor produced by Fiat. It is equipped with a 301.4 ci 4.9 L engine. The listed engine power is Diesel (listed): 85 hp / 63.4 kW. Transmission: 16 forward and 4 reverse. Operating weight: 6835 to 8068 pounds.
Engine Power
Diesel (listed): 85 hp / 63.4 kW
Fuel & Capacities
22.7 gal
85.9 L
Transmission
16 forward and 4 reverse
Operating Weight
6835 to 8068 pounds
Overview
 | 1969 - 1975
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Fiat |
Utility tractor | |
Fiat 850 Engine | |
|---|---|
Fiat 4.9L 4-cyl diesel | |
Fuel tank | 22.7 gal
85.9 L |
Engine details ...  | |
Fiat 850 Power | |
|---|---|
Engine | 85 hp
63.4 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Final drives | planetary |
Differential lock | mechanical rear |
Steering | manual |
Steering | power OptOptional |
Wet disc brakes | |
Open operator station. | |
Hydraulics | |
|---|---|
Type | open center |
Pump flow | 8.9 gpm
33.7 lpm |
Tractor hitch | |
|---|---|
Rear Type | II |
Control | position and draft control |
Rear lift | 6500 lbs
2948 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/1000 (1.375) |
Engine RPM | 540@1938 |
1000@2038 | |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 93 inches
236 cm |
4WD Wheelbase | 94.4 inches
239 cm |
Weight | 6835 to 8068 pounds |
Front tire | 7.50-2 |
2WD Rear tire | 13.6/12-38 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Battery volts | 12 |
References | |
|---|---|
 | |
850 published in 1971, by Fiat | |
850 DT published in 1971, by Fiat |
Engine
Engine Detail — 301.4 ci / 4.9 L Diesel
Manufacturer | Fiat CO3/80 |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 301.4 ci
4.9 L |
Bore/Stroke | 4.33x5.12 inches
110 x 130 mm |
Power | 85 hp
63.4 kW |
Fuel system | direct injection |
Compression | 17:1 |
Rated RPM | 2100 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
12-speed partially synchronized | |
16-speed creeper |
Transmission — 12 forward and 4 reverse partially synchronized
Type | partially synchronized |
Gears | 12 forward and 4 reverse |
Clutch | cerametallic disc |
Four synchronized gears in three ranges, plus reverse range. | |
With 16.9/14-34 rear tires. | |
 | |
Transmission | |
Type | creeper |
Gears | 16 forward and 4 reverse |
 | |
Dimensions
Fiat 850 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 7.50-2. Rear: 13.6/12-38 |
4WD Standard tires (ag) | Front: 12.4/11-24. Rear: 16.9/14-34 |
2WD Optional tires (ag) | Front: 6.50-20. Rear: 16.9/14-34 |
Dimensions | |
|---|---|
2WD Wheelbase | 93 inches
236 cm |
4WD Wheelbase | 94.4 inches
239 cm |
2WD Length | 142.5 inches
361 cm |
4WD Length | 147.6 inches
374 cm |
2WD Weight | 6835 lbs
3100 kg |
4WD Weight | 8068 lbs
3659 kg |
2WD Ground clearance | 20.3 inches
51 cm |
4WD Ground clearance | 15.5 inches
39 cm |
2WD Front tread | 54.6 to 78 inches
138 to 198 cm |
4WD Front tread | 66.3/70.2 inches
168/178 cm |
Rear tread | 58.5 to 82.6 inches
148 to 209 cm |
Fiat 850 Height | |
|---|---|
2WD Steering wheel | 68.9 inches
175 cm |
4WD Steering wheel | 70.6 inches
179 cm |
2WD Hood | 61 inches
154 cm |
4WD Hood | 63.8 inches
162 cm |
Photos
Fiat 850 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Fiat 850 based on its 85 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 | 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 Fiat 850.
Estimated Continuous Field Runtime: 5.1 hrs
Approximately 5.1 hours of continuous field operation at ~75% rated power on a full tank (22.7 gal / 85.9 L).
Estimated 75% Load Fuel Burn~4.4 gal/hr (16.7 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
Fiat 850 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Fiat 850.
Converted Equivalents:
Horsepower (HP)85 hp
Kilowatts (kW)63.4 kW
Metric Horsepower (PS / CV)86.2 PS
Direct Competitor Comparison
Compare Fiat 850 against same-era industry alternatives in the same horsepower class.
Current Model
Fiat
Fiat 850
Engine Power:Diesel (listed): 85 hp / 63.4 kW
★ Baseline Reference
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