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Home / Lawn and Garden Tractors / John Deere Lawn Tractors / John Deere L120

John Deere L120 Lawn Tractor

The John Deere L120 lawn tractor was manufactured between 2003 and 2005. The John Deere L120 tractor can be powered by two engines: 40.03 cu.in (656 cc) Briggs and Stratton 406777 4-cycle V-twin cylinder OHV vertical-shaft air-cooled gasoline engine with a rated power of 20 hp (15.4 kW), or 40.03 cu.in (656 cc) Briggs and Stratton 407777 4-cycle V-twin cylinder OHV vertical-shaft air-cooled gasoline engine with a rated power of 22 hp (16.4 kW).

The John Deere L120 is equipped with Tuff Torq K46 HD belt-driven hydrostatic transmission with foot-controlled variable speed drive. Max forward speed - 5.5 mph (8.8 km/h), maximum reverse speed - 3.2 mph (5.1 km/h). The lawn tractor is equipped with a manual steering system, wet disc brakes, 16x6.50-8 front tires, and 22x9.50-12 rear tires.

The wheelbase is 49" (1240 mm). The John Deere L120 is compatible with a 42" mid-mount 2-blade mower deck with cutting height of 1.0-4.0" (25-102 mm) and manual lift system, 42" front-mount dual-stage snowblower with clearing height of 21" (530 mm), and 46" front blade with lift height of 6.5" (160 mm).

Briggs 406777 Engine
Engine Model Briggs and Stratton 406777
Engine Type 4-cycle V-twin OHV vertical-shaft air-cooled gasoline engine
Number of Cylinders 2
Displacement, cu.in (cc) 40.03 (656)
Cylinder Bore, in (mm) 2.97 (75.0)
Piston Stroke, in (mm) 2.89 (73.0)
Rated Engine Power, hp (kW) 20.0 (15.4)
Rated Engine Speed, rpm 3300
Idle Speed, rpm 1600
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 Lash (Intake), in (mm) 0.005 (0.127)
Valve Lash (Exhaust), in (mm) 0.005 (0.127)
Fuel Tank Capacity, gal (L) 2.1 (7.9)
Oil Capacity, qts (L) 2.0 (1.9)

Briggs 407777 Engine
Engine Model Briggs and Stratton 407777
Engine Type 4-cycle V-twin OHV vertical-shaft air-cooled gasoline engine
Number of Cylinders 2
Displacement, cu.in (cc) 40.03 (656)
Cylinder Bore, in (mm) 2.97 (75.0)
Piston Stroke, in (mm) 2.89 (73.0)
Rated Engine Power, hp (kW) 22.0 (16.4)
Rated Engine Speed, rpm 3300
Idle Speed, rpm 1600
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 Lash (Intake), in (mm) 0.005 (0.127)
Valve Lash (Exhaust), in (mm) 0.005 (0.127)
Fuel Tank Capacity, gal (L) 2.1 (7.9)
Oil Capacity, qts (L) 2.0 (1.9)

Electrical System
Electrical System Rating, Volts 12
Charging System Rating, Amps 16
Starter Type Electric
Number of Batteries 1
Electric Ground Negative

Power Take-Off
PTO Operational Type Independent
PTO Clutch Electric
PTO Speed, rpm 3000


Transmission
Transmission Model Tuff Torq K46 HD
Transmission Type Belt-driven hydrostatic
Number of Forward Gears Infinite
Number of Reverse Gears Infinite
Drive Train Transaxle with foot-controlled variable speed drive
Reduction Ratio 21.53:1
Axle Shaft Size, in (mm) 0.75 (19.1)
Transaxle Capacity, qts (L) 2.4 (2.3)
Maximum Forward Speed, mph (kph) 5.5 (8.8)
Maximum Reverse Speed, mph (kph) 3.2 (5.1)

Wheels and Tires
Drive Wheels 2WD 4x2
Steering Configuration Front steer
Steering System Manual
Brakes Type Disc
Front Tires 16x6.50-8
Rear Tires 22x9.50-12

Dimensions and Weight
Wheelbase, in (mm) 49 (1240)
Length, in (mm) 60 (1520)
Height, in (mm) 38.6 (1020)
Overall Width, in (mm) 36 (910)
Weight, lbs (kg) 532 (241)

48" Mower Deck
Mower Deck Type Mid-mount
Number of Blades 3
Cutting Width, in (mm) 48 (1215)
Overall Width, in (mm) 50 (1270)
Cutting Height, in (mm) 1.0-4.0 (25-102)
Blade Engagement Electric
Deck Drive Belt
Lift System Mechanical

42" Snow blower
Snowblower Model JD 0422GX
Snowblower Type 2-stage, front-mount
Clearing Width, in (mm) 42 (1060)
Overall Width, in (mm) 43.3 (1090)
Clearing Height, in (mm) 21 (530)
Lift System Mechanical
Weight, lbs (kg) 195 (88)

Front Blade
Blade Type Front-mount
Width, in (mm) 46 (1160)
Height, in (mm) 14 (350)
Lift Height, in (mm) 6.5 (165)
Lift System Mechanical
Angle Manual
Weight, lbs (kg) 73 (33)

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