John Deere lawn tractors
John Deere 120
The John Deere 120 is a garden tractor produced from 1970 to 1971 as part of the 100 Series. It features a 12 hp Kohler K301AS 476cc 1-cylinder air-cooled gasoline engine, a shaft-driven hydrostatic Sundstrand 15 transmission with infinite forward and reverse speeds, and a 2-wheel drive mechanical setup with manual steering and an open operator station. The tractor was built in Horicon, Wisconsin, USA. It has a wheelbase of 46 inches, weighs 736 lbs, and uses lawn/turf tires. The 120 supports various attachments including mid-mount mower decks, snowblower, blades, and front-end loaders, making it versatile for lawn and garden tasks.
Power12 hp
Founded38/46" deck
Model120
Technical Specifications
Detailed specifications and technical data for John Deere 120
Tires
| Lawn/turf rear | 23x8.50-12, 23x10.50-12 |
|---|---|
| Lawn/turf front | 16x6.50-8, 4.80/4.00-8 |
Engine
| Type | gasoline |
|---|---|
| Model | Kohler K301AS |
| Cooling | air-cooled horizontal-shaft |
| Starter | electric |
| Idle RPM | 1200-3800 |
| Cylinders | 1-cylinder |
| Fuel tank | 1.75 gal (6.6 L) |
| Point gap | 0.020 inches (0.508 mm) |
| Air cleaner | dry |
| Bore/Stroke | 3.38x3.25 inches (86 x 83 mm) |
| Displacement | 476 cc (29.1 ci) |
| Oil capacity | 1.5 qts (1.4 L) |
| Power (gross) | 12 hp (8.9 kW) |
| Sparkplug gap | 0.025 inches (0.635 mm) |
| Starter volts | 12 |
| Oil change interval | 25 h |
| Intake valve clearance | 0.010 inches (cold) (0.254 mm) |
| Exhaust valve clearance | 0.020 inches (cold) (0.508 mm) |
Dimensions
| Width | 38 inches (96 cm) |
|---|---|
| Height | 43 inches (109 cm) |
| Length | 67.5 inches (171 cm) |
| Weight | 736 lbs (333 kg) |
| Wheelbase | 46 inches (116 cm) |
| Rear tread | 29/34.5 inches (73/87 cm) |
| Front tread | 31.25 inches (79 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 14 |
| Battery volts | 12 |
Production
| Type | Garden tractor |
|---|---|
| Series | 100 Series |
| Built in | Horicon, Wisconsin, USA |
| Years produced | 1970 - 1971 |
Attachments
| Loader | ModelJohnson 12 Loader Weight410 lbs (185 kg) Dump angle47° Bucket width38 inches (96 cm), 48 inches (121 cm) Lift capacity500 lbs (full at pin) (226 kg) Reach (dumped)16 inches (40 cm) Height (at pin)69.5 inches (176 cm) Clearance (level)67 inches (170 cm) Clearance (dumped)54 inches (137 cm) |
|---|---|
| Overview | 38" mid-mount mower deck, 46" mid-mount mower deck, Snowblower, Blade, Front-end loader. The 120 was compatible with the model 33 tiller with 26-, 34-, or 42-inch width. |
| 54" Blade | Cut3.5 inches (8 cm) Lift15 inches (38 cm) ModelJohn Deere 54 Mountfront-mount Width54 inches (137 cm) Height18 inches (45 cm) Weight140 lbs (63 kg) Angling30° Lift typehydraulic-lift Angle typemanual-angle |
| 38" Mower deck | Lifthydraulic lift ModelJohn Deere 41 Blades3-blade Weight111 lbs (50 kg) Dischargeright-discharge Cut height1.5 to 3.5 inch (3 to 8 cm) Total width49.25 inches (125 cm) Cutting width38 inches (96 cm) |
| 46" Mower deck | Lifthydraulic lift ModelJohn Deere 48 Blades3-blade Weight144 lbs (65 kg) Dischargeright-discharge Cut height1.5 to 3.5 inch (3 to 8 cm) Total width57 inches (144 cm) Cutting width46 inches (116 cm) |
| 46" Snow blower | Lifthydraulic-lift Typeone-stage ModelJohn Deere 49 Mountfront-mount Width46 inches (116 cm) Weight197 lbs (89 kg) |
| 54" Blade Center-mount | Cut0.75 inches (1 cm) Lift3 inches (7 cm) ModelJohn Deere 54C Mountcenter-mount Width54 inches (137 cm) Weight104 lbs (manual) (47 kg), 112 lbs (hydraulic) (50 kg) Angling20° Lift typehydraulic-lift Angle typemanual-angle, hydraulic-angle (Optional) |
Transmission
| Type | shaft-driven hydrostatic |
|---|---|
| Gears | infinite forward and reverse |
| Model | Sundstrand 15 |
| Controls | 1Brake 2Forward/Reverse 3Throttle 4Parking brake |
| Oil type | Deere 303 |
| Oil capacity | 5 qts (4.7 L) |
| Oil change interval | 500 h |
Tractor hitch
| Type | sleeve hitch (Optional) |
|---|
Power Take-off (PTO)
| Clutch | electric |
|---|---|
| Front PTO | independent |