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Oliver OC-4

Oliver OC-4 tractor
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The Oliver OC-4 is an agricultural crawler tractor produced from 1957 to 1965 by Oliver in Cleveland, Ohio, USA. It features a Hercules 2.1L 3-cylinder diesel or gasoline engine, a 4-speed gear transmission, and is designed for crawler drive. The tractor has a power output of approximately 30 hp and offers various drawbar and belt power ratings. It includes a rear PTO with a 540 rpm type. The OC-4 has 10-inch tracks and weighs between 4720 and 5000 pounds depending on configuration. It was available in variants including the OC-46 loader-crawler and the Alfta flex-track.
Oliver OC-4tractorcrawler tractorHercules engine4-speed transmissionagricultural tractorOliver tractors
Power30 hp
Founded1957 - 1965
ModelOC-4

Technical Specifications

Detailed specifications and technical data for Oliver OC-4

Power

Engine:30.45 hp (22.7 kW)
Belt (tested):26.08 hp (19.4 kW)
Drawbar (tested):24.15 hp (18.0 kW)
Gas Belt (claimed):26.47 hp (19.7 kW)
Diesel Belt (claimed):27.31 hp (20.4 kW)
Gas Drawbar (claimed):24.05 hp (17.9 kW)
Diesel Drawbar (claimed):24.75 hp (18.5 kW)

Engine

Power:30.45 hp (22.7 kW)
Torque:96 lb-ft (130.2 Nm)
Rated RPM:1700
Torque RPM:1200
Air cleaner:oil bath
Bore/Stroke:3.50x4.50 inches (89 x 114 mm)
Compression:14.5:1
Displacement:130 ci (2.1 L)
Oil capacity:5.75 qts (5.4 L)
Starter volts:12
Engine options:Hercules 2.1L 3-cyl diesel, Herclues 2.1L 3-cyl gasoline
Hercules DD130:diesel, 3-cylinder, liquid-cooled vertical I-head
Herclues GTO130:gasoline, 3-cylinder, liquid-cooled vertical I-head
Coolant capacity:12 qts (11.4 L)
Power (gasoline):30.20 hp (22.5 kW)
Torque (gasoline):97 lb-ft (131.5 Nm)
Rated RPM (gasoline):1700
Torque RPM (gasoline):1400
Air cleaner (gasoline):oil bath
Bore/Stroke (gasoline):3.50x4.50 inches (89 x 114 mm)
Compression (gasoline):6.5:1
Displacement (gasoline):130 ci (2.1 L)
Oil capacity (gasoline):5.75 qts (5.4 L)
Starter volts (gasoline):6

Tracks

Width:10 inches (25 cm)
Width (alt):12 inches (30 cm)
Area on ground:1122 in² (0.7 m²)
Length on ground:56.125 inches (142 cm)
Area on ground (alt):1347 in² (0.9 m²)
Length on ground (alt):56.125 inches (142 cm)

Weight

Gas Shipping:4720 lbs (2140 kg)
Gas Operating:4970 lbs (2254 kg)
Diesel Shipping:4750 lbs (2154 kg)
Diesel Operating:5000 lbs (2268 kg)

Variants

OC-4:crawler
Alfta:flex-track
OC-46:loader-crawler

Dimensions

Gauge:46 inches (116 cm), 31 inches (78 cm), 60 inches (152 cm), 68 inches (172 cm)
Width:60 inches (152 cm)
Length:111 inches (281 cm) *Length with dozer blade

Mechanical

Drive:crawler

Production

Type:Agricultural Crawler tractor
Built in:Cleveland, Ohio, USA
Years produced:1957 - 1965

Transmission

Type:gear
Gears:4 forward and 1 reverse
Clutch:dry disc

Dimensions & Tracks

Tracks:10-inch tracks
Weight:4720 to 5000 pounds

Power Take-off (PTO)

Rear PTO Type:540 (1.375)