John Deere D120
The John Deere D120 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 540 cc 33 ci engine. The rated power output is 21 hp 15.7 kW. Transmission: Tuff Torq T40. Operating weight: 450 lbs 204 kg.
Engine Power
21 hp
15.7 kW
Fuel & Capacities
4 gal
15.1 L
Transmission
Tuff Torq T40
Operating Weight
450 lbs
204 kg
John Deere Lawn Tractors John Deere D120 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
![]() | 2011 - 2012
D100 SeriesLawn tractor |
|---|---|
2011 - 2012 | |
D100 Series | |
Lawn tractor | |
Production | |
|---|---|
Manufacturer | John Deere |
Lawn tractor | |
Built in Greeneville, Tennessee, USA | |
Original price was $1,799 in 2011 | |
John Deere D120 Engine | |
|---|---|
21HP Briggs & Stratton 540cc 1-cyl gasoline | |
Fuel tank | 4 gal
15.1 L |
2.4 gal*California model
9.1 L | |
Engine details ... | |
John Deere D120 Transmission | |
|---|---|
hydrostatic | |
Transmission details ... |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Mechanical shoe on transaxle brakes | |
Open operator station. Adjustable 15-inch tall seat with 5.5-inches of travel in ten positions. Fender-mounted cup holder. Optional nylon sunshade canopy or snow enclosure. |
Power Take-off (PTO) | |
|---|---|
Mid PTO | manual independent |
Dimensions & Tires | |
|---|---|
Wheelbase | 48.9 inches
124 cm |
Weight | 450 lbs
204 kg |
Front tire | 15x6.00-6 |
Rear tire | 20x8.0-8 |
Full dimensions and tires ... | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 9 |
Battery volts | 12 |
Battery Group | U1 |
References | |
|---|---|
![]() | |
Operator's Manual D100 Series (OMGX24147) published in 2011 | |
Operator's Manual D100 Series (OMGX24230) published in 2012 |
Engine
Engine Detail — 540 cc / 33 ci Gasoline
Manufacturer | Briggs & Stratton 33 |
Fuel Type | Gasoline |
Configuration | 1-cylinder, air-cooled vertical-shaft |
Displacement | 540 cc
33 ci |
Bore/Stroke | 3.70x3.06 inches
94 x 78 mm |
Power (gross) | 21 hp
15.7 kW |
Air cleaner | cartridge |
Starter | electric |
Starter volts | 12 |
Oil capacity | 1.5 qts
1.4 L |
Sparkplug gap | 0.030 inches
0.762 mm |
Point gap | 0.012 inches
0.305 mm |
Intake valve clearance | 0.004 inches
0.102 mm |
Exhaust valve clearance | 0.006 inches
0.152 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 |
Automatic transmission with right-side accelerator and decelerator/reverse foot pedals. Left-side brake pedal. Cruise control is standard equipment. | |
![]() | |
Dimensions
John Deere D120 Tires | |
|---|---|
Lawn/turf front | 15x6.00-6 |
Lawn/turf rear | 20x8.0-8 |
Dimensions | |
|---|---|
Wheelbase | 48.9 inches
124 cm |
Length | 68.75 inches
174 cm |
Height | 44.5 inches
113 cm |
Weight | 450 lbs
204 kg |
Attachments
Attachment overview | |
|---|---|
42" mid-mount mower deck | |
Snowblower | |
Blade |
42" Mower deck | |
|---|---|
Type | mid-mount John Deere Edge 42 |
2-blade with manual with spring-assist lift | |
Cutting width | 42 inches
106 cm |
Overall width | 52 inches
132 cm |
Cut height | 1 to 4 inch
2 to 10 cm |
Cut positions | 13 |
Photos
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