8120 Tractor (170 hp)
8120 Tractor (170 hp)
  • 8.1 L PowerTech™ engine delivers up to 43 percent torque rise and as much as 13 percent power bulge....more
  • 16-speed PowerShift transmission allows speeds ranging from 1.2 to 26 mph....more
  • Standard Automatic PowerShift provides automatic shifting to maximize field performance in changing conditions....more
  • Mechanical front-wheel drive (MFWD) gives 4-wheel-drive braking capabilities during transport....more
  • New John Deere Independent Link Suspension™ (ILS) provides unparalleled front axle performance....more
  • John Deere Active Seat™ provides smoothest ride in the industry....more
  • Exclusive CommandARM™ module puts all major tractor functions in the palm of your hand....more
  • 8020 Series tractors are GreenStar™ ready to take advantage of John Deere precision farming....more
  • Inboard planetary final drives deliver tremendous strength and smooth power flow....more

MANUFACTURER John Deere
MODEL 8120 Tractor (170 hp)
Official Test Nebr. OECD 1819, Summary #396 (2003)
Engine
     Manufacturer John Deere
     Aspiration Turbo & Air-to-Air Aftercooled
     Cylinders/Displacement, cu. in. (liters) 6/496 (8.1)
     Cylinder Liners Wet
          Standard 135 (512)
          Optional 160 (605.66) w/long chasis frame
Performance
     Advertised PTO HP (kW) @ Rated RPM 170 (127) @ 2200
     Official PTO HP (kW) @ Rated RPM --
          @ Standard PTO @ Eng RPM 172.13 (128.36) @ 2201
          Maximum @ Eng RPM 199.71 (148.93) @ 1900
     Advertised Engine HP (kW) @ Rated Speed --
     Max Unballast Drwbr HP (kW) @ Eng RPM 173.41 (129.31) @ 1902
     Maximum Torque (PTO) @ RPM, lb-ft (Nm) 632 (857) @ 1400
     Max Torque Rise (80% Rtd Spd) @ Eng RPM 40.0% @ 1800
     Maximum Torque Rise % (PTO) @ Eng RPM 53.6% @ 1400
Fuel Use, U.S.Gal/hr & HP hr/gal at:
     PTO @ Rated Eng RPM 10.11 (38.27) & 17.03 (3.35) @ 2201
     Standard PTO Speed @ Eng Speed 10.11 (38.27) & 17.03 (3.35) @ 2201
     Maximum PTO Power @ Eng RPM 10.49 (39.69 & 19.05 (3.75) @ 1900
     Maximum Engine Power @ Eng RPM 10.18 (38.54) & 14.58 (2.87) @ 2200
     Max Unballasted Drawbar Power@Eng RPM 10.14 (38.38) & 14.68 (2.89) @ 2200
     75% Load, Full Engine RPM (Unballasted) 08.91 (33.73) & 13.03 (2.57) @ 2261
     75% Load @ Reduced RPM (Unballasted) 07.62 (28.85) & 15.26 (3.01) @ 1703
Transmission
     Std Transmission; Forward/Reverse PowerShift 16/4 w/APS
     On-the-Go Shifting (Yes/No/Partial) Yes
     Clutch; Wet/Dry Hydraulic Wet Disk
     Creeper No
Power Take-Off (PTO)
     Standard Independent 1000
     Optional 540/1000
     Speeds @ RPM 540 @ 1978: 1000 @ 2179
     Control Electrohydraulic
Hydraulics
     Type Closed-Ctr., Pres. & Flow Comp.
          Standard 33.5 (127 )
          Optional 42.5 (161)
     Rated Flow @ One SCV, GPM (L/min) 34.3 (129.8) w/std. pump
     Max Output @ SCV Couplers, GPM (L/min) 43.6 (165.0) w/opt. pump
     Maximum Operating Pressure, PSI (kPa) 2900 (20,000)
     Maximum Hydraulic Power, HP (kW) 61.9 (46.2)
     Draft Control Type Electrohydraulic
     Remote Control Valves Available 3 Std.- 4 & 5 Opt.
     Hitch Category (SAE Designation) 3/3N
          Standard 12,300 (5578)
          Optional 15,180 (6884)
Final Drive
     Type Inboard Planetary
     Differential Controls Electrohydraulic
          Front & Rear Rear Only
     Engage On-the-Go Rear Differential Lock Yes
Operator Station
          Gearshift Location - Console/Floor Right-Hand Armrest
          Doors 1; Left-Hand
          dB(A) Rating 71.9
          Seat Suspension System Air / Active Seat Optional
2WD Dimensions
     Wheelbase, in. (mm) 125.6 (3190)
     Front Tread Range, in. (mm) 60 - 84 (1524 - 2134)
     Minimum Rear Tread Setting, in. (mm) 60 (1525)
     Front Axle Clearance, in. (mm) 29.5 (749)
     Turning Radius w/o Brakes, ft. (m) 16.24 (4.95)
     Approx. Ship Wgt, lb.(kg) Open; Cab 19,103 (8665)
MFWD Dimensions Std. chasis frame MFWD / ILS:
     Wheelbase, in. (mm) 116.9 (2970)/115.7 (2940)
     Front Tread Range, in. (mm) 60-88 (1525-2235)/60-80
     Front Axle Clearance, in. (mm) 23.2 (590)
     Turning Radius w/o Brakes, ft. (m) 18.4 (5.6)/18.9 (5.8)
     Limited Slip Differential Standard
     Approx. Ship Wgt, lb. (kg) Open; Cab 20,838 (9454)/22,138 (10,040)
4WD Dimensions
Standard Tires
          Front 11.00-24
          Rear 18.4R46
     MFWD MFWD / Indep. Link Suspension
          Front 16.9R30/14.9R34
          Rear 18.4R46/18.4R46
Miscellaneous
     Inboard Planetary Yes
     Axle Type Bar Axle
     Brakes - Type and Control Wet Disk Power
     Country of Manufacture Waterloo, IA USA
     Ballasting Restrictions, lb. (kg) None
     *Notes Max. Vehicle Wt. 31,500 (14,288)
Specifications subject to change. Please contact your local dealer for more detailed information.