Allis Chalmers 920
The Allis Chalmers 920 is a tractor produced by Allis Chalmers Lawn Tractors. It is equipped with a 790 cc 48.21 ci engine. The listed engine power is Diesel (listed): 18.5 hp / 13.8 kW. Transmission: infinite forward and reverse. Operating weight: 689 lbs 312 kg.
Engine Power
Diesel (listed): 18.5 hp / 13.8 kW
Fuel & Capacities
3 gal
11.4 L
Transmission
infinite forward and reverse
Operating Weight
689 lbs
312 kg
Overview
 | 1984 - 1985
900 SeriesGarden tractor
900 Series
Garden tractor |
|---|
Production | |
|---|---|
Manufacturer | Allis Chalmers |
Garden tractor | |
Built in Port Washington, Wisconsin, USA | |
Original price was $6,099 in 1985 | |
Allis Chalmers 920 Engine | |
|---|---|
18.5HP Lombardini 790cc 2-cyl diesel | |
Fuel tank | 3 gal
11.4 L |
Engine details ...  | |
Allis Chalmers 920 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Final drives | spur gear |
Steering | manual |
power optional | |
Mechanical band brakes | |
Open operator station. | |
Tractor hitch | |
|---|---|
Type | sleeve hitch *Optional. Part number 1600055. |
Dimensions & Tires | |
|---|---|
Wheelbase | 48.1 inches
122 cm |
Weight | 689 lbs
312 kg |
Front tire | 16-6.50x8 |
Rear tire | 23-10.50x12 |
Full dimensions and tires ...  | |
Links | |
|---|---|
SimpleTractors.com: information, photos and old advertising literature at SimpleTractors.com |
Electrical | |
|---|---|
Ground | negative |
Charging system | flywheel alternator |
Charging amps | 16 |
Battery CCA | 500 |
Battery volts | 12 |
Battery Group | 24 |
References | |
|---|---|
 | |
920 Diesel Tractor published in 1984, by Allis-Chalmers | |
Operator's Manual Model 920 (1673875) published in 1984 | |
New 920 Diesel published in 1984, by Allis-Chalmers | |
1985 Lawn and Garden Line published by Allis-Chalmers |
Engine
Engine Detail — 790 cc / 48.21 ci Diesel
Manufacturer | Lombardini 10LD400-2 |
Fuel Type | Diesel |
Configuration | 2-cylinder, air-cooled |
Displacement | 790 cc
48.21 ci |
Bore/Stroke | 3.386x2.677 inches
86 x 68 mm |
Power | 18.5 hp
13.8 kW |
Air cleaner | dry |
Rated RPM | 2800 |
Starter | electric |
Starter volts | 12 |
Oil change | 300 h |
Transmission
Transmission — infinite forward and reverse belt-driven hydrostatic
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
Oil capacity | 3 qts
2.8 L |
 | |
920 Transmission Controls | |
|---|---|
 | |
1 | Throttle |
2 | Clutch/Brake |
3 | Forward/Reverse |
Dimensions
Allis Chalmers 920 Tires | |
|---|---|
Lawn/turf front | 16-6.50x8 |
Lawn/turf rear | 23-10.50x12 |
Dimensions | |
|---|---|
Wheelbase | 48.1 inches
122 cm |
Length | 70 inches
177 cm |
Width | 38.9 inches
98 cm |
Height (steering wheel) | 39.7 inches
100 cm |
Height (hood) | 35.7 inches
90 cm |
Weight | 689 lbs
312 kg |
Attachments
Attachment overview | |
|---|---|
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 920 garden tractor.
Allis-Chalmers 920 garden tractor.
Allis-Chalmers 920 operator station and controls.
Recommended Implements & Sizing Guide
Engineering recommendations for Allis Chalmers Lawn Tractors Allis Chalmers 920 based on its 18.5 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 920.
Estimated Continuous Field Runtime: 3.1 hrs
Approximately 3.1 hours of continuous field operation at ~75% rated power on a full tank (3 gal / 11.4 L).
Estimated 75% Load Fuel Burn~1 gal/hr (3.6 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 920 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Allis Chalmers Lawn Tractors Allis Chalmers 920.
Converted Equivalents:
Horsepower (HP)18.5 hp
Kilowatts (kW)13.8 kW
Metric Horsepower (PS / CV)18.8 PS
Direct Competitor Comparison
Compare Allis Chalmers 920 against same-era industry alternatives in the same horsepower class.
Current Model
Allis Chalmers Lawn Tractors
Allis Chalmers 920
Engine Power:Diesel (listed): 18.5 hp / 13.8 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester Type A 15HP
Engine Power:16.7
Production Years:1908 - 1911
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