Compare/Allis Chalmers K-O vs Nichols-Shepard 25-50

Allis Chalmers K-O vs Nichols-Shepard 25-50

Verdict: Allis Chalmers K-O vs Nichols-Shepard 25-50

The Allis Chalmers K-O and the Nichols-Shepard 25-50 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 50 hp. Allis Chalmers K-O is the lighter machine (5,216 kg vs 8,618 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers K-O is the newer design (1934 vs 1913). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Allis Chalmers

Fit score

Best match

Clear

Nichols-Shepard

Fit score

Best match

Clear

Rated power

50 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Allis ChalmersReference

Nichols-ShepardReference

The three-speed transmission was used on early models, built during 1934.Reference

liquid-cooledReference

Drive

crawlerReference

—

Final drives

—

bull gearReference

Variants

gasolineReference

—

wide gasReference

—

K-O

dieselReference

—

WK-O

wide dieselReference

—

Engine

Drawbar (tested)

37.6 kWReference

—

Belt (tested)

44.0 kWReference

—

Displacement

9.2 LReference

25.0 LReference

Bore/Stroke

133 x 165 mmReference

229 x 305 mmReference

Fuel system

mechanical injectionReference

—

Air cleaner

oil bathReference

—

Compression

6.5:1Reference

—

Rated RPM

1050Reference

—

Belt power (max)

44.0 kWReference

—

Max power

37.6 kWReference

—

Fuel tank

—

151.4 LReference

Aux. fuel

—

22.7 LReference

Drawbar (claimed)

—

37.3 kWReference

Belt (claimed)

—

18.6 kWReference

Plows

—

5 (14-inch)Reference

Transmission

Type

gearReference

Gears

4 forward and 1 reverseReference

1 forward and reverseReference

Clutch

—

dry drumReference

Dimensions

Weight

5216 kgReference

8618 kgReference

Length

303 cmReference

505 cmReference

KO Width

167 cmReference

—

Height (hood)

162 cmReference

—

KO Gauge

121 cmReference

—

WKO Gauge

160 cmReference

—

Front tire

—

42x10Reference

Rear tire

—

69x28Reference

Ag front

—

42x10 steelReference

Ag rear

—

69x28 steelReference

Height

—

287 cmReference

Rear axle

—

114 mmReference

Allis Chalmers K-O Tracks

Width

38 cmReference

294 cmReference

Test results

Belt fuel use (max)

17.4 l/hourReference

—

Max pull

5300 kgReference

—

Capacities

Diameter

—

60 cmReference

RPM

—

425Reference

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.