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Home / Lawn and Garden Tractors / John Deere Lawn Tractors / John Deere 112

John Deere 112 Garden Tractor

The John Deere 112 is a garden tractor from 100-series. This model was manufactured between 1966 and 1974.

The JD 112 driveline consists of a 4x1 Peerless 2300 gear transmission with variable pulley drive and one of three engine models: a 23.7 cu.in (388 cc) Tecumseh HH100 1-cylinder horizontal-shaft air-cooled gasoline engine with a max power of 10 hp (7.5 kW), a 23.9 cu.in (391 cc) Kohler K241S 1-cylinder air-cooled gasoline engine with a max power of 10 hp (7.5 kW), or 29.1 cu.in (476 cc) Kohler K301S 1-cylinder air-cooled gasoline engine with a rated power of 12 hp (9 kW).

Max. forward speed - 7.1 mph (11.4 km/h), maximum reverse speed - 3.1 mph (5 km/h). The tractor was equipped with 16x6.50-8 front tires and 8.00x12 rear tires. The wheelbase is 44 in (1110 mm). Compatible attachments for the John Deere 112 garden tractor: 38", 46" mid-mount 3-blade right-discharge mower decks with cutting height of 1-4" (25-101 mm), 42" front-mount blade, 42" center-mount blade with manual lifting system, 36" front-mount snow blower.

Tecumseh Engine
Engine Model Tecumseh HH100
Engine Type 4-cycle single cylinder horizontal-shaft air-cooled gasoline
Number of Cylinders 1
Displacement, cu.in (cc) 23.7 (388)
Engine Bore, in (mm) 3.31 (84.0)
Engine Stroke, in (mm) 2.75 (70.0)
Maximum Engine Power, hp (kW) 10.0 (7.5)
Rated Engine Speed, rpm 3600
Idle Speed, rpm 1600
Fuel System Carburetor
Carburetor Type Float-feed
Fuel Pump Impulse type
Governor Centrifugal flyball type
Lubrication System Splash type
Air Cleaner Dry element
Ignition System Flywheel magneto
Spark Plug Gap, in (mm) 0.028-0.033 (0.711-0.838)
Magneto Air Gap, in (mm) 0.006-0.010 (0.152-0.254)
Intake Valve Clearance, in (mm) 0.010 (0.25)
Exhaust Valve Clearance, in (mm) 0.020 (0.51)
Fuel Tank Capacity, gal (L) 1.9 (7.2)
Oil Capacity, qts (L) 1.6 (1.5)

K241S Kohler Engine
Engine Model Kohler K241S
Engine Type 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders Single
Displacement, cu.in (L) 23.9 (0.391)
Engine Bore, in (mm) 3.25 (82.5)
Engine Stroke, in (mm) 2.88 (73.0)
Maximum Horse Power, Hp (kW) 10.0 (7.5)
Rated Engine Speed, rpm 3600
Fuel System Carburetor
Carburetor Model Kohler/Walbro
Carburetor Type Fixed main jet or adjustable main jet
Lubrication System Splash type
Cooling System Forced-air
Valve Clearance (Intake), in (mm) 0.0079-0.0099 (0.20-0.25)
Valve Clearance (Exhaust), in (mm) 0.0169-0.0189 (0.43-0.48)
Spark Plug Type Champion RH10
Spark Plug Size, in (mm) 0.553 (14.0)
Spark Plug Gap, in (mm) 0.0256 (0.65)
Breaker Point Gap (Nominal), in (mm) 0.020 (0.50)
Fuel Tank Capacity, gal (L) 1.9 (7.2)
Oil Capacity, qt (L) 2.02 (1.90)

K301S Kohler Engine
Engine Model Kohler K301S
Engine Type 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders Single
Displacement, cu.in (L) 29.1 (0.476)
Engine Bore, in (mm) 3.37 (85.6)
Engine Stroke, in (mm) 3.25 (82.6)
Maximum Horse Power, hp (kW) 12.0 (9.0)
Rated Engine Speed, rpm 3600
Fuel System Carburetor
Carburetor Model Kohler/Walbro
Carburetor Type Fixed main jet or adjustable main jet
Lubrication System Splash type
Cooling System Forced-air
Valve Clearance (Intake), in (mm) 0.0079-0.0099 (0.20-0.25)
Valve Clearance (Exhaust), in (mm) 0.0169-0.0189 (0.43-0.48)
Ignition System Battery
Spark Plug Type Champion RH10
Spark Plug Size, in (mm) 0.553 (14.0)
Spark Plug Gap, in (mm) 0.0256 (0.65)
Breaker Point Gap (Nominal), in (mm) 0.020 (0.50)
Fuel Tank Capacity, gal (L) 1.9 (7.2)
Oil Capacity, qt (L) 2.02 (1.90)

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


Transmission
Transmission Model Peerless 2300
Transmission Type Gear with variable pulley drive
Number of Forward Speeds 4
Number of Reverse Speeds 1
Transmission Oil Capacity, qts (L) 1.5 (1.4)
Maximum Forward Speed, mph (kph) 7.1 (11.4)
Maximum Reverse Speed, mph (kph) 3.1 (5.0)

Wheels and Tires
Drive Wheels 4x2 2WD
Steering Configuration Front steer
Steering System Manual Steering
Front Tire Size 16x6.50-8
Rear Tire Size 8.00x12
Front Tread, in (mm) 30 (760)
Rear Tread, in (mm) 27-33 (680-830)

Dimensions and Weight
Wheelbase, in (mm) 44 (1110)
Length, in (mm) 63 (1600)
Height, in (mm) 37 (930)
Overall Width, in (mm) 38.8 (980)
Weight, lb (kg) 610 (277)

38" Mower Deck
Mower Deck Type Mid-mount
Number of Blades 3
Cutting Width, in (mm) 38 (960)
Overall Width, in (mm) 49.7 (1260)
Cutting Height, in (mm) 1.0-4.0 inch (25-102)
Deck Drive Belt
Lift System Mechanical/Hydraulic

46" Mower Deck
Mower Deck Type Mid-mount
Number of Blades 3
Cutting Width, in (mm) 46 (1160)
Cutting Height, in (mm) 1.0-4.0 inch (25-102)
Deck Drive Belt
Lift System Mechanical/Hydraulic

42" Blade
Blade Type Mid-mount
Width, in (mm) 42 (1060)
Lift System Mechanical
Angle Mechanical
Weight, lb (kg) 68 (30)

36" Snow blower
Snowblower Type Front-mount
Clearing Width, in (mm) 36 (910)
Lift System Mechanical/Hydraulic

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