John Deere LA120
The John Deere LA120 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 724 cc 44.2 ci engine. The listed engine power is Gasoline (listed): 21 hp / 15.7 kW. Transmission: Tuff Torq T40. Operating weight: 470 lbs 213 kg.
Engine Power
Gasoline (listed): 21 hp / 15.7 kW
Fuel & Capacities
Gasoline
Transmission
Tuff Torq T40
Operating Weight
470 lbs
213 kg
Overview
 | 2007
LA100 SeriesLawn tractor
LA100 Series
Lawn tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Lawn tractor | |
Built in Greeneville, Tennessee, USA | |
Original price was $1,849 in 2007 | |
John Deere LA120 Engine | |
|---|---|
21HP Briggs & Stratton 724cc 2-cyl gasoline | |
Engine details ...  |
John Deere LA120 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Mid PTO | manual |
Dimensions & Tires | |
|---|---|
Wheelbase | 48.9 inches
124 cm |
Weight | 470 lbs
213 kg |
Front tire | 15x6.00-6 |
Rear tire | 20x10.00-8 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging amps | 9 |
Battery volts | 12 |
Engine
Engine Detail — 724 cc / 44.2 ci Gasoline
Manufacturer | Briggs & Stratton |
Fuel Type | Gasoline |
Configuration | 2-cylinder |
Displacement | 724 cc
44.2 ci |
Bore/Stroke | 2.97x2.89 inches
75 x 73 mm |
Power | 21 hp
15.7 kW |
Air cleaner | paper and foam elements |
Starter volts | 12 |
Oil capacity | 2 qts
1.9 L |
Sparkplug gap | 0.030 inches
0.762 mm |
Transmission
Transmission — Tuff Torq T40
Transmission | Tuff Torq T40 |
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
Oil change | sealed unit, owner service is not recommended |
 | |
Dimensions
John Deere LA120 Tires | |
|---|---|
Lawn/turf front | 15x6.00-6 |
Lawn/turf rear | 20x10.00-8 |
Dimensions | |
|---|---|
Wheelbase | 48.9 inches
124 cm |
Length | 68.75 inches
174 cm |
Width | 51.75 inches
131 cm |
Height | 44.5 inches
113 cm |
Weight | 470 lbs
213 kg |
Attachments
42" Mower deck | |
|---|---|
Type | mid-mount John Deere |
manual lift | |
Cutting width | 42 inches
106 cm |
Photos
John Deere LA120
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere Lawn Tractors John Deere LA120 based on its 21 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. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
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 John Deere Lawn Tractors John Deere LA120.
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
John Deere Lawn Tractors John Deere LA120 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere Lawn Tractors John Deere LA120.
Converted Equivalents:
Horsepower (HP)21 hp
Kilowatts (kW)15.7 kW
Metric Horsepower (PS / CV)21.3 PS
Direct Competitor Comparison
Compare John Deere LA120 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere Lawn Tractors
John Deere LA120
Engine Power:Gasoline (listed): 21 hp / 15.7 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester D-219
Engine Power:19
Production Years:1962 - 1966
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