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Wallis 12-20 vs Wallis K 15-25

Verdict: Wallis 12-20 vs Wallis K 15-25

The Wallis 12-20 and the Wallis K 15-25 are both tractors — here is how they stack up on the figures that matter. Wallis K 15-25 leads on rated power with 15 hp against 12 hp. Wallis 12-20 is the lighter machine (1,567 kg vs 1,587 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Wallis 12-20 is the newer design (1929 vs 1919). In short: choose the Wallis K 15-25 for outright pulling power, or the Wallis 12-20 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
Wallis 12-20 Tractor
Wallis
62
Fit score
Best match
Clear
Wallis K 15-25 Tractor
Wallis
62
Fit score
Best match
Clear
Rated power
12 hp
15 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
Wallis (a part of Massey-Harris)Reference
Wallis (a part of J.I. Case Plow Works)Reference
Drawbar performanceReference
Drawbar performanceReference
Steering
manualReference
Engine
Fuel tank
56.8 LReference
Aux. fuel
6.6 LReference
Drawbar (claimed)
8.9 kWReference
11.2 kWReference
Belt (claimed)
14.9 kWReference
18.6 kWReference
Plows
2Reference
2-3 (14 inch)Reference
Drawbar (tested)
13.5 kWReference
13.9 kWReference
Belt (tested)
18.0 kWReference
22.3 kWReference
Displacement
4.1 LReference
5.3 LReference
Bore/Stroke
98 x 133 mmReference
108 x 146 mmReference
Rated RPM
1000Reference
900Reference
Starter type
hand-crankReference
hand-crankReference
Belt power (max)
18.0 kWReference
22.3 kWReference
Max power
13.5 kWReference
13.9 kWReference
Transmission
Type
gearReference
gearReference
Gears
3 forward and 1 reverseReference
2 forward and 1 reverseReference
Clutch
dry discReference
Dimensions
Wheelbase
198 cmReference
Weight
1567 kgReference
1587 kgReference
Front tire
28x5Reference
Rear tire
44x10Reference
Ag front
28x5 (steel)Reference
Ag rear
44x10 (steel)Reference
Length
307 cmReference
335 cmReference
Height
129 cmReference
165 cmReference
Capacities
Diameter
43 cmReference
45 cmReference
Width
139 cmReference
154 cmReference
RPM
540Reference
430Reference
Speed
731.52 meters/minReference
615.70 meters/minReference
Test results
Belt fuel use (max)
9.5 l/hourReference
12.1 l/hourReference
Max pull
1368 kgReference
1261 kgReference

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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