Oliver OC-6

The Oliver OC-6 is a tractor produced by Oliver. It is equipped with a 216.5 ci 3.5 L engine. The rated power output is 43 hp 32.1 kW. Transmission: 6 forward and 2 reverse. Drive type: crawler. Operating weight: 5565 to 5855 pounds.

Overview

	1953 - 1960 Agricultural Crawler tractor
1953 - 1960
Agricultural Crawler tractor

Production
Manufacturer	Oliver
Agricultural Crawler tractor
Built in Cleveland, Ohio, USA
The diesel variant of the Oliver OC-6 was known as the OC-6D. The OC-6 was based on the Oliver 77 tractor.

Oliver OC-6 Transmission
6-speed gear
Transmission details ...

Oliver OC-6 Power
Engine	45 hp 33.6 kW
Plows	3
Drawbar (tested)	33.46 hp 25.0 kW
Performance test details ...

Mechanical
Drive	crawler
Mechanical contracting band brakes
Open operator station.

Power Take-off (PTO)
Rear PTO	independent optional

Dimensions & Tracks
Wheelbase	54.2 inches 137 cm
Weight	5565 to 5855 pounds
8-inch tracks
Full dimensions and tracks ...

References
OC-6 3-Plow Crawler Tractor published in 1957, by Oliver
OC-6 Crawler Tractor published in 1959, by Oliver

Engine

Engine options
Oliver-Waukesha 3.2L 6-cyl gasoline
Oliver-Waukehsa 3.2L 6-cyl diesel
Oliver-Waukesha 3.5L 6-cyl gasoline

Engine Detail — 193.9 ci / 3.2 L Gasoline

Manufacturer	Oliver-Waukesha
Fuel Type	Gasoline
Configuration	6-cylinder, liquid-cooled vertical I-head
Displacement	193.9 ci 3.2 L
Bore/Stroke	3.3125x3.75 inches 84 x 95 mm
Power	45 hp 33.6 kW
Air cleaner	Vortox oil bath
Compression	6.75:1
Rated RPM	1600
Firing order	1-5-3-6-2-4
Oil capacity	5 qts 4.7 L
Coolant capacity	17 qts 16.1 L

Engine Detail — 193.9 ci / 3.2 L Diesel

Manufacturer	Oliver-Waukehsa
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled vertical I-head
Displacement	193.9 ci 3.2 L
Bore/Stroke	3.3125x3.75 inches 84 x 95 mm
Power	43 hp 32.1 kW
Air cleaner	Vortox oil bath
Compression	15.75:1
Rated RPM	1600
Firing order	1-5-3-6-2-4
Oil capacity	5 qts 4.7 L

Engine Detail — 216.5 ci / 3.5 L Gasoline

Manufacturer	Oliver-Waukesha
Fuel Type	Gasoline
Configuration	6-cylinder, liquid-cooled
Larger bore engine replaced the original gas engine
Displacement	216.5 ci 3.5 L
Bore/Stroke	3.50x3.75 inches 89 x 95 mm

Transmission

Transmission — 6 forward and 2 reverse gear

Type	gear
Gears	6 forward and 2 reverse
Clutch	dry disc

Dimensions

Oliver OC-6 Tracks
Option	10-inch tracks
	12-inch tracks
Width	8 inches 20 cm

Dimensions
Wheelbase	54.2 inches 137 cm
Length	121.5 inches 308 cm
Width	56.25 inches (42-inch gauge) 142 cm
	82.25 inches (68-inch gauge) 208 cm
Height	56.5 inches 143 cm
Ground clearance	20 inches 50 cm
Gauge	42 inches 106 cm
Gauge	68 inches 172 cm

Oliver OC-6 Weight
Gas Operating	5565 lbs (42-inch gauge) 2524 kg
Gas Operating	5705 lbs (68-inch gauge) 2587 kg
Diesel Operating	5715 lbs (42-inch gauge) 2592 kg
Diesel Operating	5855 lbs (68-inch gauge) 2655 kg

Tests

Tractor Tests
NTTL 516: gasoline 6-speed crawler
NTTL 517: diesel 6-speed crawler

Nebraska Tractor Test 516
Gasoline 6-speed crawler April 15 - 28, 1954 Link: Nebraska Tractor Test 516 file
Drawbar performance
Max power	31.92 hp 23.8 kW
Gear 2 used for power test.
Max pull	6215 lbs 2819 kg
Gear 1 used for pull test.

Nebraska Tractor Test 517
Diesel 6-speed crawler April 17 - May 7, 1954 Link: Nebraska Tractor Test 517 file
Drawbar performance
Max power	33.46 hp 25.0 kW
Gear 2 used for power test.
Max pull	6779 lbs 3074 kg
Gear 1 used for pull test.

Photos

Gasoline Oliver OC-6 ag crawler.

High-clearance Oliver OC-6D diesel crawler.

High-clearance Oliver OC-6D diesel crawler.