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John Deere B vs John Deere GP

Verdict: John Deere B vs John Deere GP

The John Deere B and the John Deere GP are both tractors — here is how they stack up on the figures that matter. John Deere B leads on rated power with 12 hp against 10 hp. John Deere B is the lighter machine (1,485 kg vs 1,632 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere GP holds more fuel (60.6 L vs 45.4 L) for longer stints between fills. John Deere B is the newer design (1935 vs 1928). In short: choose the John Deere B for outright pulling power, or the John Deere GP 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 B Tractor
John Deere
71
Fit score
Best match
Clear
John Deere GP Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
12 hp
10 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
Gear shift lever with speed 1, 2, and reverse. High and low range shift lever.Reference
339 distillate 3-speed 2WDMay 4 - 15, 1931Link: Nebraska Tractor Test 190 fileReference
Total built
15,613 (long frame)Reference
717 (GPO)Reference
Steering
manualReference
Variants
B
tricycle front axleReference
BR
fixed front axleReference
BO
OrchardReference
BN
narrow row-cropReference
BW
wide row-cropReference
BI
industrial tractorReference
BO Lindeman
crawlerReference
GPWT
wide-treadReference
GPO
orchardReference
GP-P
potatoReference
Engine
Fuel tank
45.4 LReference
60.6 LReference
Aux. fuel
3.8 LReference
7.6 LReference
Drawbar (claimed)
8.9 kWReference
7.5 kWReference
Belt (claimed)
11.9 kWReference
14.9 kWReference
Plows
2 (10-inch)Reference
2 (14-inch)Reference
Drawbar (tested)
8.8 kWReference
14.1 kWReference
Belt (tested)
11.9 kWReference
18.9 kWReference
Displacement
2.4 LReference
5.6 LReference
Bore/Stroke
108 x 133 mmReference
152 x 152 mmReference
Fuel system
Marvel-Schebler DLTX-10Reference
Cooling system
thermo-siphonReference
Air cleaner
oil bathReference
Compression
4.71:1Reference
Rated RPM
975Reference
950Reference
Firing order
1-2Reference
Starter type
hand-crankReference
Oil capacity
6.6 LReference
Coolant capacity
20.8 LReference
34.1 LReference
Sparkplug gap
0.762 mmReference
Point gap
0.381 mmReference
Intake valve clearance
0.508 mmReference
Exhaust valve clearance
0.508 mmReference
Belt power (max)
11.9 kWReference
18.9 kWReference
Max power
8.8 kWReference
14.1 kWReference
Fuel Type
DieselReference
No of Cylinders
2-cylinderReference
Rated engine speed
975Reference
Bore and stroke
4.25x5.25 inchesReference
Compression ratio
4.71:1Reference
Transmission
Type
unsynchronized gearReference
unsynchronized gearReference
Gears
4 forward and 1 reverseReference
3 forward and 1 reverseReference
Clutch
dry discReference
forward and reverse options
4 forward and 1 reverseReference
PTO & Hydraulics
Rear PTO
transmissionReference
Rear PTO Type
540Reference
Dimensions
Weight
1485 kgReference
1632 kgReference
Front tire
22x3.25Reference
24x6Reference
Rear tire
48x5.25Reference
42.75x10Reference
Ag front
22x3.25 (steel)Reference
6.00x16Reference
Ag rear
48x5.25 (steel)Reference
10.00x32Reference
Length
306 cmReference
284 cmReference
Height (hood)
142 cmReference
Rear tread
142 to 213 cmReference
Height
140 cmReference
B Serial Number Location
B Serial Numbers
1935
1000Reference
15589 (GP-O)Reference
1936
12012Reference
1937
27389Reference
1938
46175 (*49302)Reference
1939
60000Reference
1940
78526Reference
1941
96000Reference
1942
118721Reference
1943
136315Reference
1944
149219Reference
1945
167700Reference
1946
179788Reference
1947
191303Reference
1948
209295Reference
1949
230044Reference
1950
253025Reference
1951
275242Reference
1952
293030Reference
Final
310772Reference
15732 (GP-O)Reference
Links
Capacities
Diameter
24 cmReference
Width
215 cmReference
RPM
1250Reference
Speed
947.93 meters/minReference
Capacity
149 ciReference
Electrical
Ground
positiveReference
Test results
Belt fuel use (max)
7.9 l/hourReference
10.2 l/hourReference
Max pull
783 kgReference
1294 kgReference
General
Make & Model
John DeereReference
PTO
Rear PTO Power
AvailableReference
Dimensions & weight
Overall Height
142.2 cmReference
Overall Length
306.1 cmReference
Overall Width
215.9 cmReference
Steering & brakes
Steering type
manualReference
GP Serial Number Location
GP Serial Numbers
1928
200211Reference
1929
201336Reference
1930
5000-5202 (GP-P)Reference
1931
15000 (GP-O)Reference
1932
15226 (GP-O)Reference
1933
15387 (GP-O)Reference
1934
15412 (GP-O)Reference

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.

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