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John Deere 420 Crawler Loader vs John Deere BI
Verdict: John Deere 420 Crawler Loader vs John Deere BI
The John Deere 420 Crawler Loader and the John Deere BI are both industrial tractors — here is how they stack up on the figures that matter. John Deere 420 Crawler Loader leads on rated power with 30 hp against 14 hp. John Deere BI holds more fuel (45.4 L vs 39.7 L) for longer stints between fills. John Deere 420 Crawler Loader is the newer design (1957 vs 1936). In short: choose the John Deere 420 Crawler Loader for outright pulling power, or the John Deere BI if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
John Deere
71
Fit score
Best match
Clear
John Deere
71
Fit score
Best match
Clear
Rated power
30 hp
14 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
John DeereReference
John DeereReference
liquid-cooledReference
Larger engine, available in 1938 (S/N 329000)Reference
Drive
crawlerReference
—
Total built
—
183Reference
Engine
Fuel tank
39.7 LReference
45.4 LReference
Belt (claimed)
22.1 kWReference
10.6 kWReference
Displacement
1.9 LReference
2.9 LReference
Bore/Stroke
108 x 102 mmReference
114 x 140 mmReference
Rated RPM
1850Reference
1150Reference
Starter
electricReference
—
Starter volts
6Reference
—
Compression
—
4.71:1Reference
Firing order
—
1-2Reference
Oil capacity
—
6.6 LReference
Coolant capacity
—
22.7 LReference
Sparkplug gap
—
0.762 mmReference
Point gap
—
0.381 mmReference
Transmission
Gears
5 forward and reverseReference
4 forward and 1 reverseReference
Transmission
Direction ReverseReference
—
PTO & Hydraulics
Type
mechanical shuttleReference
gearReference
Pressure
86.2 barReference
—
Pump flow
87.1 lpmReference
—
Dimensions
Weight
4057 kgReference
—
Length
414 cmReference
—
Height
177 cmReference
—
John Deere 420 Crawler Loader attachments
Electrical
Ground
positiveReference
—
Battery volts
6Reference
—
John Deere 420 Crawler Loader Tracks
4-roller width
30 cmReference
—
4-roller length on ground
142 cmReference
—
4-roller area on ground
0.9 m²Reference
—
5-roller width
30 cmReference
—
5-roller length on ground
168 cmReference
—
5-roller area on ground
1.0 m²Reference
—
Width
35 cmReference
—
Variants
BR
—
standard-front farm tractorReference
B
—
row-crop farm tractorReference
BI Serial Number Location
BI Serial Numbers
1936
—
325000Reference
1937
—
326655Reference
1938
—
328111Reference
1939
—
329000Reference
1940
—
330633Reference
1941
—
332039Reference
Final
—
332157Reference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.