Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere LA120 Specs

JD LA120 Engine Specifications

Engine Model - Briggs Stratton 44
Engine Type - 4 Stroke OHV V-Twin
Max Power - 25 HP
Bore/Stroke - 3.12 / 2.89 in
Displacement - 724 cc (44.2 cu. in.)
Spark Plug Gap - 0.76 mm (0.030 in)
Spark Plug Torque - 20 Nm (15 lb·ft)
Cylinders - Twin
Oil Filter - Standard
Air Filter - Cartridge
Oil System - Pressure lubrication, Oil Cooler
Oil Capacity - 2 Qts
Intake - Low Vacuum Purge Port
Engine Cooling Type - Forced Air Cooling
Fuel - Gasoline
Crankcase, with Oil Filter - 1.9 L (2.0 qt)
Fuel Tank - 9 L (2.4 gal)
Starting Type - Electric Start
Charging System - 16 AMP W/Regulator
Starting System - Stater, 12 Volt Heavy Duty
Dimensions (L x W x H) - 18.25 x 19.25 x 20 in.
Muffler Included - No
Dry Engine Weight - 94 lbs.
Shaft Diameter - 1"
Shaft Length - 3-5/32" Total
Shaft I.D. Thread Size - 7/16"-20
Drilled and Tapped - Bolt Pattern - 4 Bolt

John Deere LA120 Transmission

Transmission Type - Hydrostatic
Transaxle Model - Tuff Torq T40
Forward Travel Speed - 0-8.9 km/h (0-5.5 mph)
Reverse Travel Speed - 0-5.2 km/h (0-3.2 mph)

Electrical System

Charging System - Regulated Circuit
Charging System Capacity - 9 Amp
Battery Voltage - 12 Volts
Battery Type - BCI Group U1

JD LA120 Tires

Size (Front) - 15x6.00-6
Size (Rear) - 20x10.00-8
Tire Pressure (Front) - 97 kPa (14 psi)
Tire Pressure (Rear) - 69 kPa (10 psi)

Dimensions

Height - 113 cm (44.5 in.)
Length (Overall) - 175 cm (68.75 in.)
Width (Mower Deck Chute Down) - 131 cm (51.75 in.)
Weight - 213 kg (470 lb)

John Deere LA120 Attachments

42 Inch Mower Deck

Blades Rotary - 2
Blade Nut Torque (w/ M12 Nut) - 75 Nm (55 lb-ft)
Blade Nut Torque (w/ 5/8 in. Nut) - 88 Nm (65 lb-ft)
Cutting Height (Approximately) - 25-102 mm (1 - 4 in.)
Cutting Width - 107 cm (42 in.)

48 Inch Mower Deck

Blades Rotary - 3
Blade Nut Torque (w/ M12 Nut) - 75 Nm (55 lb-ft)
Blade Nut Torque (w/ 5/8 in. Nut) - 88 Nm (65 lb-ft)
Cutting Height (Approximately) - 25-102 mm (1 - 4 in.)
Cutting Width - 122 cm (48 in.)

54 Inch Mower Deck

Blades Rotary - 3
Blade Nut Torque (w/ M12 Nut) - 75 Nm (55 lb-ft)
Blade Nut Torque (w/ 5/8 in. Nut) - 88 Nm (65 lb-ft)
Cutting Height (Approximately) - 25-102 mm (1 - 4 in.)
Cutting Width - 137 cm (54 in.)

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JOHN DEERE LAWN TRACTORS SPECIFICATIONS

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ENGINES FOR JOHN DEERE LAWN TRACTORS

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JOHN DEERE TRACTORS ATTACHMENTS
420 430 455 790 990
X300 X320 X330 X350 X475
X485 X500 X540 X570 X590
X700 X720 X738 X758 1023E
2025R 2210 2520 3025E 3032E
3038E 3038R 3039R 3046R 3203
3320 3520 4052R 4066R 4100
4105 4115 4200 4310 4320
4400 4410 4520 4600 4720

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JOHN DEERE FRONT END LOADERS

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JD TRACTORS TROUBLESHOOTING
2640 3040 3310 3650 4100
5050D 5090R 5410 6105R 7200R
E130 L111 LA110 LT155 X300R

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JOHN DEERE FARM TRACTORS SPECIFICATIONS

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