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Bolens G172 Specifications

General Information

Tractor Model ...................... Bolens G172
Tractor Type ...................... Sub-compact utility tractor
Manufacture Years ...................... 1978-1981
Fuel Type ...................... Diesel

Bolens G172 Engine Specs

Engine Model ...................... Mitsubishi KE75
Engine Type ...................... 4-cycle two cylinder water-cooled diesel
Number of Cylinders ...................... 2
Displacement, cu.in (L) ...................... 46.6 (0.764)
Engine Bore, in (mm) ...................... 3.07 (78.0)
Engine Stroke, in (mm) ...................... 3.15 (80.0)
Maximum Engine Power, hp (kW) ...................... 17.0 (12.7)
Rated Engine Speed, rpm ...................... 2700
Compression Ratio ...................... 20:1
Firing Order ...................... 1-2
Fuel System ...................... Injection pump
Lubrication System ...................... Forced circulation
Combustion chamber ...................... Swirl type
Cooling System ...................... Forced water circulation
Air Cleaner ...................... Dry element
Intake Valve Clearance, in (mm) ...................... 0.010 (0.25)
Exhaust Valve Clearance, in (mm) ...................... 0.010 (0.25)
Fuel Tank Capacity, gal (L) ...................... 3.2 (12.0)
Oil Capacity, qts (L) ...................... 2.7 (2.6)
Coolant Capacity, qts (L) ...................... 4.4 (4.2)
Electrical System Rating, Volts ...................... 12

Power Take Off

PTO Operational Type ...................... Transmission
PTO Horsepower, hp (kW) ...................... 15.5 (11.4)
PTO Speed, rpm ...................... 472/752/1177
PTO / Engine Speed, rpm ...................... 472/2700
PTO / Engine Speed, rpm ...................... 752/2700
PTO / Engine Speed, rpm ...................... 1177/2700

Bolens G172 Transmission

Transmission Type ...................... Unsynchronized gear
Gearbox Type ...................... 6F/2R
Number of Forward Gears ...................... 6
Number of Reverse Gears ...................... 2
Clutch Type ...................... Dry disc
Oil Capacity, qts (L) ...................... 13.0 (12.3)
Maximum Forward Speed, mph (kph) ...................... 7.7 (12.4)
Maximum Reverse Speed, mph (kph) ...................... 4.0 (6.4)

Wheels and Tires

Drive Wheels ...................... 2WD 4x2
Steering Configuration ...................... Front steer
Steering System ...................... Manual
Brakes Type ...................... Mechanical internal expanding
Front Tire Size ...................... 4.00-12
Rear Tire Size ...................... 8.00-16
Front Tread, in (mm) ...................... 27.7 (700)
Rear Tread, in (mm) ...................... 31.2 (790)

Bolens G172 Hydraulic System

Hydraulic System Type ...................... Open Center
Implement Pump Type ...................... Gear
Implement Pump Flow, gpm (Lpm) ...................... 3 (11.4)
Hydraulic Pressure, Bar (psi) ...................... 128 (1850)
3-Point Hitch Category ...................... 0/1
Draft Sensing or Lift Control ...................... Position control

Dimensions and Weight

Wheelbase, in (mm) ...................... 50.4 (1280)
Length, in (mm) ...................... 78.3 (1980)
Height, in (mm) ...................... 66 (1670)
Overall Width, in (mm) ...................... 40.3 (1020)
Ground Clearance, in (mm) ...................... 14 (350)
Weight, lb (kg) ...................... 1115 (508)