Bolens GT-1800
The Bolens GT-1800 is a tractor produced by Bolens Lawn Tractors. It is equipped with a 691 cc 42.18 ci engine. The listed engine power is Gasoline (gross): 18 hp / 13.4 kW. Transmission: Eaton 11. Operating weight: 925 lbs 419 kg.
Engine Power
Gasoline (gross): 18 hp / 13.4 kW
Fuel & Capacities
4 gal
15.1 L
Transmission
Eaton 11
Operating Weight
925 lbs
419 kg
Overview
 | 1988 - 1995
DuraTrac SeriesGarden tractor
DuraTrac Series
Garden tractor |
|---|
Production | |
|---|---|
Manufacturer | Bolens |
Garden tractor | |
The GT-1800 carried Bolens model codes 5118H and 5118HS (power steering). | |
Variants | |
|---|---|
GTX 18 | similar Troy-Bilt model |
Bolens GT-1800 Engine | |
|---|---|
18HP Kohler 691cc 2-cyl gasoline | |
Fuel tank | 4 gal
15.1 L |
Engine details ...  | |
Bolens GT-1800 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual |
power optional | |
Open operator station | |
Tractor hitch | |
|---|---|
Rear Type | 0 OptOptional |
Type | sleeve hitch OptOptional |
Power Take-off (PTO) | |
|---|---|
Front PTO | independent |
Clutch | electro-magnetic |
Front PTO Type | shaft |
Engine RPM | 2000@3600 |
Dimensions & Tires | |
|---|---|
Wheelbase | 49 inches
124 cm |
Weight | 925 lbs
419 kg |
Front tire | 16x6.50-8 |
Rear tire | 23x10.50-12 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | flywheel alternator |
Charging amps | 15 |
Battery volts | 12 |
References | |
|---|---|
 | |
Owner/Operator Manual 14066 Front End Loader (1768332) published in 1993 | |
Lawn and Garden Power Products published in 1989, by Bolens | |
Garden Tractors published in 1990, by Bolens | |
Owner's Manual DuraTrac Tractor (1761611) published in 1991 | |
Service Manual DuraTrac Tractor (1760169) published in 1992 |
Engine
Engine Detail — 691 cc / 42.18 ci Gasoline
Manufacturer | Kohler M18QS |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled horizontal-shaft opposed-twin |
Displacement | 691 cc
42.18 ci |
Bore/Stroke | 3.12x2.75 inches
79 x 70 mm |
Power (gross) | 18 hp
13.4 kW |
Rated RPM | 3600 |
Starter | electric |
Starter volts | 12 |
Sparkplug | Champion RV15YC |
Sparkplug gap | 0.025 inches
0.635 mm |
Oil capacity | 1.75 qts
1.7 L |
Oil change | 25 h |
Transmission
Transmission — Eaton 11
Transmission | Eaton 11 |
Type | shaft-driven hydrostatic |
Gears | infinite forward and reverse |
Oil capacity | 8 qts
7.6 L |
Oil type | Mobilfluid 423 |
Oil change | 100 h |
 | |
Mobilfluid 423 |
|---|
Dimensions
Bolens GT-1800 Tires | |
|---|---|
Lawn/turf front | 16x6.50-8 |
Lawn/turf rear | 23x10.50-12 |
Dimensions | |
|---|---|
Wheelbase | 49 inches
124 cm |
Length | 76.75 inches
194 cm |
Width | 38.5 inches
97 cm |
Height | 47.75 inches
121 cm |
Shipping weight | 925 lbs
419 kg |
Ground clearance | 6.5 inches
16 cm |
Attachments
Attachment overview | |
|---|---|
42" mid-mount mower deck | |
48" mid-mount mower deck | |
60" mid-mount mower deck | |
Snowblower | |
Blade | |
Front-end loader | |
The GT-1800 was compatible with a 33-inch shaft drive tiller (51333). |
Photos
Bolens GT-1800 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Bolens Lawn Tractors Bolens GT-1800 based on its 18 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 Lawn Tractors Bolens GT-1800.
Estimated Continuous Field Runtime: 4.3 hrs
Approximately 4.3 hours of continuous field operation at ~75% rated power on a full tank (4 gal / 15.1 L).
Estimated 75% Load Fuel Burn~0.9 gal/hr (3.5 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 Lawn Tractors Bolens GT-1800 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Bolens Lawn Tractors Bolens GT-1800.
Converted Equivalents:
Horsepower (HP)18 hp
Kilowatts (kW)13.4 kW
Metric Horsepower (PS / CV)18.2 PS
Direct Competitor Comparison
Compare Bolens GT-1800 against same-era industry alternatives in the same horsepower class.
Current Model
Bolens Lawn Tractors
Bolens GT-1800
Engine Power:Gasoline (gross): 18 hp / 13.4 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester Type A 15HP
Engine Power:16.7
Production Years:1908 - 1911
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