Oliver industrial tractors

Oliver 550

The Oliver 550 is an industrial tractor produced from 1958 to 1975 by Oliver in Charles City, Iowa, USA. It features a 2.5L 4-cylinder engine available in diesel or gasoline versions, with power outputs ranging from 42.5 to 47 hp gross. The tractor has a 6-speed gear transmission with 2 reverse speeds, mechanical or optional power steering, disc brakes, and an open operator station. It includes an open center hydraulic system with 35 gpm flow, a rear I-type hitch with position and draft control, and an optional independent rear PTO with 540 rpm options. Dimensions include a 72.875 inch wheelbase, 119.875 inch length, and weights from 3132 to 3221 lbs depending on fuel type. Tires vary with multiple industrial front and rear sizes. Attachments include Oliver 558 and 578 loaders and Oliver 510 and 613 backhoes with detailed lift, breakout, and reach specifications.

Power-

Founded-

Model550

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Technical Specifications

Detailed specifications and technical data for Oliver 550

Power

Engine (net)	44 hp (32.8 kW)
Engine (gross)	47 hp (35.0 kW)
Gas PTO (claimed)	43 hp (32.1 kW)
Diesel PTO (claimed)	41 hp (30.6 kW)

Tires

Industrial rear	14.9/13-24, 11.2/10-28, 12.4/11-28, 13.6/12-26, 14.9/13-26
Industrial front	7.60-15, 5.50-16, 6.00-16, 6.50-16, 7.50-16

Engine

Fuel tank	13 gal (49.2 L)
Diesel engine	Oliver 4-cylinder liquid-cooled diesel
Diesel starter	electric
Engine options	Oliver 2.5L 4-cyl diesel, Oliver 2.5L 4-cyl gasoline
Gasoline engine	Oliver 4-cylinder liquid-cooled gasoline
Diesel rated RPM	2000
Gasoline starter	electric
Diesel air cleaner	oil bath
Diesel bore/stroke	3.625x3.75 inches (92 x 95 mm)
Diesel power (net)	42.5 hp (31.7 kW)
Gasoline rated RPM	2000
Diesel displacement	155 ci (2.5 L)
Diesel oil capacity	4 qts (3.8 L)
Diesel power (gross)	45.5 hp (33.9 kW)
Diesel starter volts	12
Gasoline air cleaner	oil bath
Gasoline bore/stroke	3.625x3.75 inches (92 x 95 mm)
Gasoline power (net)	44 hp (32.8 kW)
Gasoline displacement	155 ci (2.5 L)
Gasoline oil capacity	4 qts (3.8 L)
Gasoline power (gross)	47 hp (35.0 kW)
Gasoline starter volts	12
Diesel coolant capacity	14 qts (13.2 L)
Gasoline coolant capacity	14 qts (13.2 L)

Dimensions

Width	66.75 inches Minimum width (169 cm)
Length	119.875 inches (304 cm)
Wheelbase	72.875 inches (185 cm)
Rear tread	48 to 76 inches (121 to 193 cm)
Front tread	52 inches (132 cm)
Gas Shipping weight	3132 lbs (1420 kg)
Diesel Shipping weight	3221 lbs (1461 kg)
Height (steering wheel)	57.9 inches (147 cm)

Hydraulics

Type	open center
Total flow	35 gpm (132.5 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Disc brakes
Steering	mechanical, power Optional
Operator station	Open operator station

Production

Type	Industrial tractor
Built in	Charles City, Iowa, USA
Manufacturer	Oliver
Years produced	1958 - 1975

Attachments

Backhoe	Oliver 510 Backhoe, Oliver 613 Backhoe
Loaders	Oliver 558 loader, Oliver 578 loader

Transmission

Type	gear
Gears	6 forward and 2 reverse
Clutch	254mm mechanical dry disc

Tractor hitch

Control	position and draft control
Rear Type	I

Oliver 558 loader

Boom rod	1.5 inches (3 cm)
Bucket rod	1.5 inches (3 cm)
Boom cylinder	2.5 inches (6 cm)
Bucket widths	42 inches (106 cm), 60 inches (152 cm), 68 inches (172 cm)
Lift capacity	1800 lbs lift (full at pin) (816 kg)
Breakout force	3400 lbs breakout (bucket) (1542 kg)
Bucket cylinder	2.5 inches (6 cm)
Clearance level	120 inches (304 cm)
Clearance dumped	102 inches (259 cm)

Oliver 578 loader

Boom rod	2.5 inches (6 cm)
Reach dumped	25.25 inches (64 cm)
Boom cylinder	2.5 inches (6 cm)
Height at pin	131 inches (332 cm)
Lift capacity	2000 lbs lift (full at pin) (907 kg)
Breakout force	3825 lbs breakout (1735 kg)
Clearance dumped	109.5 inches (278 cm)