John Deere 420 Engine Specifications
B48G Engine
Engine Model – Onan B48G
Engine Type – Gasoline
Horsepower (SAEJ607) – 14.9 kW (20 hp)
Engine Torque – 4.4 kgm (31.8 ft.lbs)
Fast Idle Engine Rated Speeds (No Load) – 3450 rpm
Engine Rated Speeds Low Idle (No Load) – 1350 rpm
Number of Cylinders – 2
Crankshaft Alignment – Horizontal
Stroke/Cycle – 4 Cycle
Bore – 82.55 mm (3.25 in.)
Stroke – 73 mm (2.875 in.)
Displacement – 782 cm3 (47.7 cu in.)
Compression Ratio – 7.0:1
Cooling – Air
Air Filter Type – Dry with Pre-Cleaner
Lubrication System – Full Pressure w/Filter
Crankcase Capacity (w/o Filter) – 1.4 L (1.5 U.S. qt)
Oil Filter – Replaceable
Spark Plugs – NGK BPR5EFS / Champion RS14YC
Fuel Tank Location – Rear
Fuel Gauge – Std.
Fuel Reserve System – Std.
Fuel (min. octane) – 85 Octane Unleaded
Fuel Pump Location – Engine
Fuel Pump Type – Pulse
Fuel Delivery – Fixed Jet Carburetor
Ignition – Electronic
Type of Starter – 12 Volts, Solenoid
Charging System – 15 amp Stator
P220G Engine
Engine Model – Onan P220G
Type – Gasoline
Horsepower (SAEJ607) – 14.9 kW (20 hp)
Engine Torque – 4.4 kgm (31.8 ft.lbs)
Fast Idle Engine Rated Speeds (No Load) – 3450 rpm
Engine Rated Speeds Low Idle (No Load) – 1350 rpm
Number of Cylinders – 2
Crankshaft Alignment – Horizontal
Stroke/Cycle – 4 Cycle
Bore – 82.55 mm (3.25 in.)
Stroke – 73 mm (2.875 in.)
Displacement – 782 cm3 (47.7 cu in.)
Compression Ratio – 7.0:1
Cylinder Material – Aluminum
Cooling – Air
Air Filter Type – Dry with Pre-Cleaner
Lubrication System – Full Pressure w/Filter
Crankcase Capacity (w/o Filter) – 1.4 L (1.5 U.S. qt)
Oil Filter – Replaceable
Spark Plugs – NGK BPR5EFS / Champion RS14YC
Fuel Tank Location – Rear
Fuel Gauge – Standard
Fuel Reserve System – Standard
Fuel Tank Capacity – 25 L (6.5 U.S. gal)
Fuel (min. octane) – 85 Octane Unleaded
Fuel Pump Location – Engine
Fuel Pump Type – Pulse
Fuel Delivery – Fixed Jet Carburetor
Ignition – Electronic
Type of Starter – 12 Volts, Solenoid
Charging System – 20 amp Stator
Battery Type – BCI Group 22F
Battery Voltage – 12V
Battery Reserve Capacity @ 25 amp – 102 minutes
Battery Cold Cranking amp @ 0F – 491 amp
Headlights – Standard
Rear Reflector/Tail Lights – Standard
Dash Indicator Lights – Standard
Operator Presence System – Standard
John Deere 420 Transmission
Transmission Model – Sundstrand 90
Transmission Type – Shaft-driven Hydrostatic, 2 Ranges
Number of Speeds – Infinite
Forward Speeds, High – 0-15.04 km/h (0-9.35 mph)
Forward Speeds, Low – 0-9.35 km/h (0-5.80 mph)
Reverse Speeds, High – 0-7.52 km/h (0-4.67 mph)
Reverse Speeds, Low – 0-4.66 km/h (0-2.90 mph)
Transmission Capacity w/Filter – 7.1 L (15 U.S. pt)
Transmission Oil Cooler – Std.
Transmission Oil Filter – Std.
Differential Lock – Std.
JD 420 Power Take-Off
Front PTO – Standard
Rear PTO – Optional
PTO Type – Electric Clutch
Control – Elec. Switch on Dash
Front PTO, rpm (No Load) – 3450
Rear PTO, rpm (No Load) – 2000
Steering and Brakes
Steering Type – Hydrostatic Power
Brakes Location – Rear Wheels
Individually Controlled – Std
Brakes Type – Shoe and Drum
Return-to-Neutral Braking – Std
Parking Brake – Yes
John Deere 420 Hydraulic System
Hydraulic System Type – Three-Function (One w/Float)
Hydraulic Couplers – Two Sets
Wheel Treads and Tires
Front Treads – 914 mm (36 in.)
Rear Treads (Narrow) – 818 mm (32 in.)
Rear Treads (Wide) – 980 mm (38.6 in.)
Standard Front Tires (Turf) – 18 x 8.50-8, 4 PR
Standard Rear Tires (Turf or Bar) – 26 x 12.00-12, 2 PR
Inflation Pressure (Front) – 41-152 kPa (6-22 psi)
Inflation Pressure (Rear) – 34-69 kPa (5-10 psi)
John Deere 420 Attachments
50″ Mower
Mower Deck Type – Mid-mount
Blades – Three with hydraulic lift
Cutting width – 50 inches (1270 mm)
Belt – Shaft-drive
Weight – 226 lbs (102 kg)
Overall width – 68 inches (1720 mm)
Cut height – 1.5 to 6 inch (30 to 150 mm)
60″ Mower
Mower Deck Type – Mid-mount
Blades – Three with hydraulic lift
Cutting width – 60 inches (1520 mm)
Belt – Shaft-drive
Weight – 367 lbs (166 kg)
Overall width – 72.5 inches (1840 mm)
Cut height – 2 to 7 inch (50 to 170 mm)
Blade
Type – Front-mount
Width – 54 inches (1370 mm)
Height – 18 inches (450 mm)
Lift height – 12 inches (300 mm)
Cut depth – 3.5 inches (80 mm)
Weight – 184 lbs (83 kg)
Lift – Hydraulic
Angle – Hydraulic
46″ Snow Blower
Type – Front-mount two-stage with hydraulic lift
Clearing width – 46 inches (1160 mm)
Clearing height – 12 inches (300 mm)
Weight – 310 lbs (140 kg)
47″ Snow Blower
Type – Front-mount John Deere 47 dual-stage with hydraulic lift
Clearing width – 47 inches (1190 mm)
Clearing height – 23 inches (580 mm)
Weight – 400 lbs (181 kg)
John Deere 420 Loader
Loader type – John Deere 44
Weight – 500 lbs (226 kg)
Height (to pin) – 73 inches (1850 mm)
Clearance, dumped bucket – 53.25 inches (1350 mm)
Dump reach – 22 inches (550 mm)
Dump angle – 50
Reach at ground – 43.75 inches (1110 mm)
Rollback angle – 20
Breakout force (bucket) – 725 lbs (328 kg)
Lift to full height (at pin) – 500 lbs (226 kg)
Bucket capacity – 0.21 cu yd (0.2 cu m) / 0.24 cu yd (0.2 cu m)
Bucket width – 45,54 inches (1150 mm)
JD 420 Dimension
Wheel Base – 1.3 m (52 in.)
Overall Length – 2.0 m (77 in.)
Overall Height – 1.21 m (47.5 in.)
Overall Width (max.) – 1.31 m (51.5 in.)
Overall Width (min.) – 1.14 m (45 in.)
Turning Radius (Inside Rear Wheel) – 660 mm (26 in.)
Turning Radius (Outside Front Wheel) – 2.2 m (86 in.)
Net Weight (No Fuel) – 408 kg (913 lbs)
Shipping Weight – 450 kg (993 lbs)