Bolens G172
The Bolens G172 is a tractor produced by Bolens. It is equipped with a 46.6 ci 0.8 L engine. The listed engine power is Diesel (listed): 17 hp / 12.7 kW. Transmission: 6 forward and 2 reverse. Operating weight: 1056 lbs 479 kg.
Engine Power
Diesel (listed): 17 hp / 12.7 kW
Fuel & Capacities
3.2 gal
12.1 L
Transmission
6 forward and 2 reverse
Operating Weight
1056 lbs
479 kg
Overview
 | 1978 - 1981
Sub-Compact Utility tractorIseki built
Sub-Compact Utility tractor
Iseki built |
|---|
Production | |
|---|---|
Distributor | Bolens |
Manufacturer | Iseki |
Sub-Compact Utility tractor | |
Variants | |
|---|---|
G172 | 2WD |
G174 | 4WD |
TX1500 | similar Iseki model |
Bolens G172 Engine | |
|---|---|
Mitsubishi 0.8L 2-cyl diesel | |
Fuel tank | 3.2 gal
12.1 L |
Engine details ...  | |
Bolens G172 Transmission | |
|---|---|
6-speed unsynchronized gear | |
Transmission details ...  |
Bolens G172 Power | |
|---|---|
Engine | 17 hp
12.7 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Differential lock | mechanical rear |
Manual steering | |
Mechanical internal expanding brakes | |
Open operator station. | |
Power Take-off (PTO) | |
|---|---|
Rear PTO | transmission |
Rear PTO Type | 472/752/1177 |
Engine RPM | 472@2700 |
752@2700 | |
1177@2700 | |
Dimensions & Tires | |
|---|---|
Wheelbase | 50.4 inches
128 cm |
Weight | 1056 lbs
479 kg |
Front tire | 4.00-12 |
Rear tire | 8-16 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Battery AH | 45 |
References | |
|---|---|
 | |
Diesel Tractors published in 1978, by Bolens | |
Diesel Tractors published in 1979, by Bolens | |
Operating Instructions G152 - G154 - G172 - G174 (553214-1) published in 1978 |
Engine
Engine Detail — 46.6 ci / 0.8 L Diesel
Manufacturer | Mitsubishi KE 75 |
Fuel Type | Diesel |
Configuration | 2-cylinder, liquid-cooled |
Displacement | 46.6 ci
0.8 L |
Bore/Stroke | 3.07x3.15 inches
78 x 80 mm |
Power | 17 hp
12.7 kW |
Air cleaner | dry element |
Pre-heating | glow plugs |
Starter | electric |
Starter volts | 12 |
Coolant capacity | 4.4 qts
4.2 L |
Oil capacity | 2.7 qts
2.6 L |
Oil change | 100 h |
Transmission
Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
Oil capacity | 13 qts
12.3 L |
Three gears (1-3) plus reverse (R) with additional high-low range shift. Tractor must be stopped, and clutch used, to shift gears and range. | |
 | |
Dimensions
Bolens G172 Tires | |
|---|---|
Standard tires (ag) | Front: 4.00-12. Rear: 8-16 |
Lawn/turf front | 20x8.00-10 |
Lawn/turf rear | 8-16 |
Dimensions | |
|---|---|
Wheelbase | 50.4 inches
128 cm |
Length | 76.4 inches
194 cm |
Width | 37.8 inches
96 cm |
Height | 46.9 inches
119 cm |
Weight | 1056 lbs
479 kg |
Ground clearance | 10.8 inches
27 cm |
Front tread | 28.3/34.6 inches
71/87 cm |
Rear tread | 29.1/33/37 inches
73/83/93 cm |
Attachments
Attachment overview | |
|---|---|
42" mid-mount mower deck | |
Snowblower | |
Blade |
42" Mower deck | |
|---|---|
Type | mid-mount Bolens |
Cutting width | 42 inches
106 cm |
Photos
Bolens G172
Recommended Implements & Sizing Guide
Engineering recommendations for Bolens G172 based on its 17 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
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 Bolens G172.
Estimated Continuous Field Runtime: 3.6 hrs
Approximately 3.6 hours of continuous field operation at ~75% rated power on a full tank (3.2 gal / 12.1 L).
Estimated 75% Load Fuel Burn~0.9 gal/hr (3.3 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
Bolens G172 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Bolens G172.
Converted Equivalents:
Horsepower (HP)17 hp
Kilowatts (kW)12.7 kW
Metric Horsepower (PS / CV)17.2 PS
Direct Competitor Comparison
Compare Bolens G172 against same-era industry alternatives in the same horsepower class.
Current Model
Bolens
Bolens G172
Engine Power:Diesel (listed): 17 hp / 12.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 154 Lo-Boy
Engine Power:15.6
Production Years:1968 - 1974
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