Allis Chalmers K

The Allis Chalmers K is a tractor produced by Allis Chalmers. It is equipped with a 510.5 ci 8.4 L engine. Transmission: 4 forward and 1 reverse. Drive type: crawler. Operating weight: 11500 lbs 5216 kg.

Overview

	1929 - 1943 Agricultural Crawler tractor

Production
Manufacturer	Allis Chalmers
Agricultural Crawler tractor
Built in Springfield, Illinois, USA
Total built	9,468

Variants
K	gasoline
WK	wide gas
KO	diesel
WKO	wide diesel

Allis Chalmers K Engine
Allis Chalmers 8.4L 4-cyl gasoline
Fuel tank	39 gal 147.6 L
Engine details ...

Allis Chalmers K Power
Drawbar (claimed)	35.5 hp 26.5 kW
Belt (claimed)	49.3 hp 36.8 kW
Drawbar (tested)	53.6 hp 40.0 kW
Belt (tested)	62.22 hp 46.4 kW
Performance test details ...

Mechanical
Drive	crawler
Open operator station.

Dimensions & Tracks
Weight	11500 lbs 5216 kg
15-inch tracks
Full dimensions and tracks ...

References
New Model K published in 1933, by Allis Chalmers
Build a Better Farm published in 1940, by Allis Chalmers

Engine

Engine Detail — 510.5 ci / 8.4 L Gasoline

Manufacturer	Allis Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	510.5 ci 8.4 L
Bore/Stroke	5.00x6.50 inches 127 x 165 mm
Air cleaner	oil bath
Compression	5.2:1
Rated RPM	1050
Coolant capacity	44 qts 41.6 L

Transmission

Transmission options
3-speed gear
4-speed gear

Transmission — 3 forward and 1 reverse gear

Type	gear
Gears	3 forward and 1 reverse
The three-speed transmission was used on early models.

Transmission — 4 forward and 1 reverse gear

Type	gear
Gears	4 forward and 1 reverse
Oil capacity	22 qts 20.8 L
The four-speed transmission was introduced in 1935 at tractor serial number 4451.

Dimensions

Allis Chalmers K Tracks
Width	15 inches 38 cm
Length on ground	67 inches 170 cm
Area on ground	2010 in² 1.3 m²
Ground pressure	5.46 psi 0.4 bar

Dimensions
Length	124 inches 314 cm
K Width	65.9 inches 167 cm
Height (hood)	64 inches 162 cm
Weight	11500 lbs 5216 kg
K Gauge	48 inches 121 cm
WK Gauge	63 inches 160 cm

Tests

Tractor Tests
NTTL 215: gasoline 3-speed crawler
NTTL 336: gasoline 4-speed crawler

Nebraska Tractor Test 215
Gasoline 3-speed crawler September 21 - October 4, 1933 Link: Nebraska Tractor Test 215 file
Belt power (max)	55.24 hp 41.2 kW
Belt fuel use (max)	5.9 gal/hour 22.3 l/hour
Drawbar performance
Max power	47.87 hp 35.7 kW
Gear 2 used for power test.
Max pull	8865 lbs 4021 kg
Gear 1 used for pull test.

Nebraska Tractor Test 336
Gasoline 4-speed crawler November 21 - 27, 1939 Link: Nebraska Tractor Test 336 file
Belt power (max)	62.22 hp 46.4 kW
Belt fuel use (max)	6.2 gal/hour 23.5 l/hour
Drawbar performance
Max power	53.6 hp 40.0 kW
Gear 2 used for power test.
Max pull	11785 lbs 5345 kg
Gear 1 used for pull test.

Photos

Allis Chalmers K