The John Deere 420 Crawler Loader is a compact industrial tractor model, rated at 30 horsepower. It was manufactured between 1957 and 1958, and is equipped with a 2-cylinder petrol liquid-cooled engine. The machine is powered through a 4-speed gearbox to a tracked undercarriage, with a listed weight of 4057 kg. Its capabilities are suited to jobs requiring up to 200 acres of work.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
30 hp
Weight
4057 kg
Catalogue coverage
Variants represented
2
Richest spec table
45 rows
Recorded power
30 hp
Recorded weight
4057 kg
Transmissions
4-speed gear
Production years
1957-1958
Verified variants
0
1 linked source document displayed
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Crawler LoaderReference
Built in Dubuque, Iowa, USAReference
DrivecrawlerReference
Contracting band brakesReference
Open operator station.Reference
Engine
John Deere 1.9L 2-cyl gasolineReference
Fuel tank39.7 LReference
Belt (claimed)22.1 kWReference
John DeereReference
gasolineReference
2-cylinderReference
liquid-cooledReference
Displacement1.9 LReference
Bore/Stroke108 x 102 mmReference
Rated RPM1850Reference
StarterelectricReference
Starter volts6Reference
Transmission
4-speed gearReference
5-speed gearReference
5-speed mechanical shuttleReference
TypegearReference
Gears4 forward and 1 reverseReference
Gears5 forward and 1 reverseReference
TransmissionDirection ReverseReference
Typemechanical shuttleReference
Gears5 forward and reverseReference
PTO & Hydraulics
Typeopen centerReference
Pressure86.2 barReference
Pump flow87.1 lpmReference
Dimensions
Weight4057 kgReference
12-inch tracksReference
Length414 cmReference
Height177 cmReference
John Deere 420 Crawler Loader attachments
front-end loaderReference
Electrical
GroundpositiveReference
Battery volts6Reference
John Deere 420 Crawler Loader Tracks
4-roller width30 cmReference
4-roller length on ground142 cmReference
4-roller area on ground0.9 m²Reference
5-roller width30 cmReference
5-roller length on ground168 cmReference
5-roller area on ground1.0 m²Reference
Width25 cmReference
Width35 cmReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
