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John Deere LA120 Lawn Tractor
The
John Deere LA120 lawn tractor was manufactured from 2007 to 2009. The John Deere
LA120 driveline consists of Briggs and Stratton 441677 4-cycle V-twin cylinder
OHV vertical-shaft air-cooled gasoline engine and Tuff Torq T40 belt-driven
hydrostatic transmission with infinite forward and reverse gears.
A 44.2 cu.in (724 cc) engine has a cylinder bore of 3.12" (79 mm),
piston stroke of 2.89" (73 mm), and rated power of 21 hp (15.7 kW). Max.
forward speed - 5.5 mph (8.8 kph), maximum reverse speed - 3.2 mph (5.1
kph).
The tractor was equipped with a manual steering system, disc brakes,
15x6.00-6 front tires, and 20x10.00-8 rear tires. The wheel base is 49
in (1240 mm). The John Deere LA120 is compatible with a 42" mid-mount
2-blade mower deck with cutting height of 1.0-4.0" (25-102 mm) and
mechanical lifting system.
| Engine Model |
Briggs and Stratton 441677 |
| Engine Type |
4-cycle V-twin OHV vertical-shaft air-cooled gasoline engine |
| Number of Cylinders |
2 |
| Displacement, cu.in (cc) |
44.2 (724) |
| Cylinder Bore, in (mm) |
3.12 (79.0) |
| Piston Stroke, in (mm) |
2.89 (73.0) |
| Rated Engine Power, hp (kW) |
21.0 (15.7) |
| Rated Engine Speed, rpm |
3300 |
| Idle Speed, rpm |
1750 |
| Cylinder Bore Type |
Cast iron sleeve |
| Fuel System Type |
Carburetor |
| Carburetor Type |
Float-feed |
| Fuel Pump |
Pulse type |
| Governor Type |
Mechanical |
| Lubrication System |
Full pressure |
| Air Cleaner |
Paper cartridge with a foam pre-cleaner |
| Cooling System |
Forced air |
| Ignition System |
Electronic |
| Spark Plug Gap, in (mm) |
0.030 (0.76) |
| Magneto Air Gap, in (mm) |
0.008-0.012 (0.20-0.30) |
| Valve Clearance (Intake), in (mm) |
0.004-0.006 (0.10-0.15) |
| Valve Clearance (Exhaust), in (mm) |
0.004-0.006 (0.10-0.15) |
| Fuel Tank Capacity, gal (L) |
3.0 (11.5) |
| Oil Capacity, qts (L) |
2.0 (1.9) |
| Electrical System Rating, Volts |
12 |
| Charging System |
Alternator |
| Alternator Rating, Amps |
9 |
| Starter Type |
Electric |
| Number of Batteries |
1 |
| Electric Ground |
Negative |
| Transmission Model |
Tuff Torq T40 |
| Transmission Type |
Belt-driven hydrostatic |
| Number of Forward Speeds |
Infinite |
| Number of Reverse Speeds |
Infinite |
| Maximum Forward Speed, mph (kph) |
5.5 (8.8) |
| Maximum Reverse Speed, mph (kph) |
3.2 (5.1) |
| Drive Wheels |
4x2 2WD |
| Steering Configuration |
Front steer |
| Steering System |
Manual |
| Front Tire Size |
15x6.00-6 |
| Rear Tire Size |
20x10.00-8 |
| Wheelbase, in (mm) |
49 (1240) |
| Length, in (mm) |
68.8 (1740) |
| Height, in (mm) |
44.5 (1120) |
| Overall Width, in (mm) |
51.8 (1310) |
| Weight, lb (kg) |
470 (213) |
| Mower Deck Type |
Mid-mount |
| Number of Blades |
2 |
| Cutting Width, in (mm) |
42 (1060) |
| Overall Width, in (mm) |
52 (1320) |
| Cutting Height, in (mm) |
1.0-4.0 (25-102) |
| Spindle Material |
Aluminum |
| Deck Drive |
Belt |
| Lift System |
Mechanical |
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| Lawn and Garden Tractors Technical Specs |
