John Deere 8850
The John Deere 8850 is a tractor produced by John Deere. It is equipped with a 955 ci 15.7 L engine. The listed engine power is Diesel (listed): 370 hp / 275.9 kW. Transmission: Quad-Range. Operating weight: 37480 to 37700 pounds.
Engine Power
Diesel (listed): 370 hp / 275.9 kW
Fuel & Capacities
240 gal
908.4 L
Transmission
Quad-Range
Operating Weight
37,700 lbs
17100 kg
Overview
 | 1982 - 1988
8050 SeriesFour-wheel Drive (4WD) tractor
8050 Series
Four-wheel Drive (4WD) tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Four-wheel Drive (4WD) tractor | |
Built in Waterloo, Iowa, USA | |
Original price was $122,694 in 1983 | |
The model 8850 was the largest of the four-wheel drive tractors that John Deere unveiled in 1982. Its big V-8 was a departure from John Deere's usual engine design. The 8850 had an available full-power PTO and Load-and-Depth control three-point hitch. | |
John Deere 8850 Engine | |
|---|---|
John Deere 15.7L 8-cyl diesel | |
Engine details ...  |
John Deere 8850 Transmission | |
|---|---|
16-speed partial power shift | |
Transmission details ...  |
John Deere 8850 Power | |
|---|---|
Engine | 370 hp
275.9 kW |
PTO (claimed) | 300 hp
223.7 kW |
Drawbar (tested) | 269.77 hp
201.2 kW |
PTO (tested) | 303.99 hp
226.7 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Four-wheel drive | |
Final drives | inboard compound planetary |
Differential lock | electro-hydraulic front and rear |
Articulated power steering | |
Power wet disc brakes | |
Sound-Gard cab with air-conditioning | |
Capacity | |
|---|---|
Fuel | 240 gal
908.4 L |
Hydraulic system | 45.5 gal
172.2 L |
Hydraulics | |
|---|---|
Type | closed center constant-pressure |
Capacity | 45.5 gal
172.2 L |
Valves | 3 to 4 |
Pump flow | 44 gpm
166.5 lpm |
Tractor hitch | |
|---|---|
Rear Type | 4/4N |
Control | lower-link draft sensing |
Rear lift | 10,250 lbs
4649 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent OptOptional |
Clutch | hydraulic wet disc |
Rear PTO Type | 1000 (1.75) |
Dimensions & Tires | |
|---|---|
Wheelbase | 133 inches
337 cm |
Weight | 37480 to 37700 pounds |
Front tire | 20.8-38 |
Rear tire | 20.8-38 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 110 |
Batteries | 3 |
Battery CCA | 625 |
Battery volts | 12 |
References | |
|---|---|
 | |
Loaders, Spreaders and Blades published in 1984, by John Deere | |
4-Wheel-Drive Tractors published in 1981, by John Deere | |
4-Wheel-Drive Tractors published in 1983, by John Deere | |
4-Wheel-Drive Tractors published in 1986, by John Deere | |
8450, 8650, 8850 Competition published in 1982, by John Deere | |
Agricultural Price List published in 1983, by John Deere |
Engine
Engine Detail — 955 ci / 15.7 L Diesel
Manufacturer | John Deere |
Configuration | intercooled turbocharged diesel, 8-cylinder, liquid-cooled V8 |
Displacement | 955 ci
15.7 L |
Bore/Stroke | 5.51x5.00 inches
140 x 127 mm |
Power | 370 hp
275.9 kW |
Compression | 15.5:1 |
Rated RPM | 2100 |
Starter volts | 12 |
Oil capacity | 51 qts
48.3 L |
Coolant capacity | 78 qts
73.8 L |
John Deere 8850 Engine | |
|---|---|
 |
Transmission
Transmission — Quad-Range
Transmission | Quad-Range |
Type | partial power shift |
Gears | 16 forward and 6 reverse |
Clutch | Perma-Clutch hydraulic wet discs |
Oil capacity | 182 qts
172.2 L |
Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range. | |
20.8-38 tires | |
 | |
Dimensions
John Deere 8850 Tires | |
|---|---|
Ag front | 20.8-38 |
Ag rear | 20.8-38 |
Ag front | 20.8-42 |
23.1-34 | |
24.5-32 | |
30.5L-32 | |
20.8-42 | |
Ag rear | 20.8-42 |
23.1-34 | |
24.5-32 | |
30.5L-32 | |
20.8-42 | |
Dimensions | |
|---|---|
Wheelbase | 133 inches
337 cm |
Length | 257.8 inches
654 cm |
Shipping weight | 37,480 lbs
17000 kg |
Operating weight | 37,700 lbs
17100 kg |
Front axle | 4.331 by 127.5 inches
110 by 3238 mm |
Rear axle | 4.331 by 127.5 inches
110 by 3238 mm |
Tests
Nebraska Tractor Test 1434 | |
|---|---|
Diesel Quad-Range 4WD
May 11 - 21, 1982
Link: Nebraska Tractor Test 1434 file | |
PTO performance | |
Power at rated engine speed | 303.99 hp
226.7 kW |
Fuel use | 19.3 gal/hour
73.1 l/hour |
Drawbar performance | |
Max power | 269.77 hp
201.2 kW |
Fuel use | 19.2 gal/hour
72.7 l/hour |
Max pull | 35,330 lbs
16025 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 8850 based on its 370 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
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 8850.
Estimated Continuous Field Runtime: 12.5 hrs
Approximately 12.5 hours of continuous field operation at ~75% rated power on a full tank (240 gal / 908.5 L).
Estimated 75% Load Fuel Burn~19.2 gal/hr (72.8 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 8850 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 8850.
Converted Equivalents:
Horsepower (HP)370 hp
Kilowatts (kW)275.9 kW
Metric Horsepower (PS / CV)375.1 PS
Direct Competitor Comparison
Compare John Deere 8850 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 8850
Engine Power:Diesel (listed): 370 hp / 275.9 kW
★ Baseline Reference
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