Allis Chalmers 818GT

The Allis Chalmers 818GT is a tractor produced by Allis Chalmers Lawn Tractors. It is equipped with a 693 cc 42.33 ci engine. The listed engine power is Gasoline (gross): 18 hp / 13.4 kW. Transmission: 3 forward and 1 reverse. Operating weight: 430 lbs 195 kg.

Engine Power

Gasoline (gross): 18 hp / 13.4 kW

Fuel & Capacities

2.2 gal 8.3 L

Transmission

3 forward and 1 reverse

Operating Weight

430 lbs 195 kg

Overview

	1979 - 1981 800GT SeriesGarden tractor 800GT Series Garden tractor

Production
Manufacturer	Allis Chalmers
Garden tractor
Built in Port Washington, Wisconsin, USA

Allis Chalmers 818GT Engine
18HP Briggs & Stratton 693cc 2-cyl gasoline
Fuel tank	2.2 gal 8.3 L
Engine details ...

Allis Chalmers 818GT Transmission
3-speed gear
Transmission details ...

Mechanical
Two-wheel drive
Manual steering
Mechanical band brakes
Open operator station.

Power Take-off (PTO)
Mid PTO	independent
Clutch	mechanical idler pulley

Dimensions & Tires
Wheelbase	48.2 inches 122 cm
Weight	430 lbs 195 kg
Front tire	15x6.00-6
Rear tire	20x10.00-10
Full dimensions and tires ...

Electrical
Ground	negative
Charging amps	3
Battery volts	12

Engine

Engine Detail — 693 cc / 42.33 ci Gasoline

Manufacturer	Briggs & Stratton 421707
Fuel Type	Gasoline
Configuration	2-cylinder, air-cooled vertical-shaft horizontally-opposed
Displacement	693 cc 42.33 ci
Bore/Stroke	3.44x2.28 inches 87 x 58 mm
Power (gross)	18 hp 13.4 kW
Starter	electric
Starter volts	12

Allis Chalmers 818GT Engine

Image courtesy of Kyle Taylor

Transmission

Transmission — 3 forward and 1 reverse belt-driven gear

Type	belt-driven gear
Gears	3 forward and 1 reverse

Dimensions

Allis Chalmers 818GT Tires
Lawn/turf front	15x6.00-6
Lawn/turf rear	20x10.00-10

Dimensions
Wheelbase	48.2 inches 122 cm
Length	66.5 inches 168 cm
Width	35.5 inches 90 cm
Height (steering wheel)	40 inches 101 cm
Height (hood)	34.5 inches 87 cm
Weight	430 lbs 195 kg

Attachments

Attachment overview
36" mid-mount mower deck
42" mid-mount mower deck
48" mid-mount mower deck
Snowblower
Blade
Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. TractorData does not list details of these attachments.

Photos

Allis Chalmers 818GT

Recommended Implements & Sizing Guide

Engineering recommendations for Allis Chalmers Lawn Tractors Allis Chalmers 818GT 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 Allis Chalmers Lawn Tractors Allis Chalmers 818GT.

Estimated Continuous Field Runtime: 2.4 hrs

Approximately 2.4 hours of continuous field operation at ~75% rated power on a full tank (2.2 gal / 8.3 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

Allis Chalmers Lawn Tractors Allis Chalmers 818GT Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Allis Chalmers Lawn Tractors Allis Chalmers 818GT.

Enter value:

Unit:

Converted Equivalents:

Horsepower (HP)18 hp

Kilowatts (kW)13.4 kW

Metric Horsepower (PS / CV)18.2 PS

Direct Competitor Comparison

Compare Allis Chalmers 818GT against same-era industry alternatives in the same horsepower class.

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