John Deere 7185J
The John Deere 7185J is a tractor produced by John Deere. It is equipped with a 414 ci 6.8 L engine. The listed engine power is Diesel (listed): 185 hp / 138.0 kW. Transmission: John Deere AutoQuad. Operating weight: 17,860 lbs 8101 kg.
Engine Power
Diesel (listed): 185 hp / 138.0 kW
Fuel & Capacities
103.5 gal
391.7 L
Transmission
John Deere AutoQuad
Operating Weight
17,860 lbs
8101 kg
Overview
 | 2010 -
7J SeriesRow-Crop tractor |
|---|---|
2010 - | |
7J Series | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | John Deere |
Row-Crop tractor | |
Built in Montenegro, Brazil | |
John Deere 7185J Engine | |
|---|---|
John Deere 6.8L 6-cyl diesel | |
Fuel tank | 103.5 gal
391.7 L |
Engine details ...  | |
John Deere 7185J Power | |
|---|---|
Engine | 185 hp
138.0 kW |
PTO (claimed) | 157 hp
117.1 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Differential lock | electro-hydraulic |
Steering | hydrostatic power |
Hydraulic wet disc brakes | |
Trailer brakes | air brake optional |
Cab standard with air-conditoning. | |
Hydraulics | |
|---|---|
Type | closed center |
Pressure | 3046 psi
210.0 bar |
Valves | 2 to 4 |
Pump flow | 32 gpm
121.1 lpm |
46 gpm (optional)
174.1 lpm | |
SCV flow | 30.1 gpm
113.9 lpm |
44.9 gpm (optional)
169.9 lpm | |
Tractor hitch | |
|---|---|
Rear Type | 3/3N |
Control | electronic lower-link sensing |
Rear lift (at ends) | 16,670 lbs
7561 kg |
23,020 lbs (optional)
10441 kg | |
Rear lift (at 24"/610mm) | 10,140 lbs
4599 kg |
14,000 lbs (optional)
6350 kg | |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Clutch | electro-hydraulic wet disc |
Rear PTO Type | 540/1000 |
Engine RPM | 540@1950 |
1000@1950 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 112.6 inches
286 cm |
Weight | 17,860 lbs
8101 kg |
Front tire | 16.9-30 |
Rear tire | 20.8-42 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 90 |
Batteries | 2 |
Battery volts | 12 |
Battery AH | 100 |
Engine
Engine Detail — 414 ci / 6.8 L Diesel
Manufacturer | John Deere 6068 Powertech |
Configuration | turbocharged intercooled diesel, 6-cylinder 24-valve, liquid-cooled |
Displacement | 414 ci
6.8 L |
Bore/Stroke | 4.19x5.00 inches
106 x 127 mm |
Power | 185 hp
138.0 kW |
Fuel system | mechanical injection pump with electronic governor |
Rated RPM | 2100 |
Torque | 609.2 lb-ft
826.1 Nm |
Torque RPM | 1400 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
16-speed partial power shift | |
16-speed |
Transmission — John Deere PowrQuad Plus
Transmission | John Deere PowrQuad Plus |
Type | partial power shift |
Gears | 16 forward and reverse |
Clutch | hydraulic wet disc |
Four gears (1-4) in four ranges (A-D) with left-hand power shuttle. Push-button power shifting between gears, synchronized range shifting using the clutch. | |
Transmission — John Deere AutoQuad
Transmission | John Deere AutoQuad |
Gears | 16 forward and reverse |
Clutch | hydraulic wet disc |
Dimensions
John Deere 7185J Tires | |
|---|---|
Standard tires (ag) | Front: 16.9-30. Rear: 20.8-42 |
Optional tires (ag) | Front: 16.9R30. Rear: 20.8R42 |
Front: 600/65R28. Rear: 710/70R38 | |
Front: 600/60R30.5. Rear: 850/60R38 | |
Front: 18.4-26. Rear: 30.5L-32 | |
Front: 480/70R28. Rear: 800/65R32 | |
Dimensions | |
|---|---|
Wheelbase | 112.6 inches
286 cm |
Length | 240.4 inches
610 cm |
Height (cab) | 123.7 inches
314 cm |
Weight | 17,860 lbs
8101 kg |
Ballasted weight | 21,830 lbs
9902 kg |
Clearance (front axle) | 20.9 inches
53 cm |
Rear axle | 3.937 by 96 inches
99 by 2438 mm |
Rear axle | 3.937 by 110.5 inches
99 by 2806 mm |
Front tread | 60 to 84 inches
152 to 213 cm |
Rear tread | 60 to 84.1 inches
152 to 213 cm |
Rear tread | 62.5 to 126.7 inches
158 to 321 cm (long axle) |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 7185J based on its 185 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 5 to 7 Bottom (18")5 - 7 铧 (45 cm) | Commercial / Field Scale | Large acreage tillage; requires front ballast weights. |
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 | 15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙 | Commercial / Field Scale | Wide commercial field leveling; requires hydraulic remotes. |
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 7185J.
Estimated Continuous Field Runtime: 10.8 hrs
Approximately 10.8 hours of continuous field operation at ~75% rated power on a full tank (103.5 gal / 391.8 L).
Estimated 75% Load Fuel Burn~9.6 gal/hr (36.4 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 7185J Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 7185J.
Converted Equivalents:
Horsepower (HP)185 hp
Kilowatts (kW)138 kW
Metric Horsepower (PS / CV)187.6 PS
Direct Competitor Comparison
Compare John Deere 7185J against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 7185J
Engine Power:Diesel (listed): 185 hp / 138.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 4186
Engine Power:166.7
Production Years:1976 - 1978
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