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Tractor · 1948Unverified

Oliver 77 Row-Crop

Name: Oliver 77 Row-Crop
Brand: Oliver

Oliver 77 Row-Crop — Fleetline Series · 33 hp. Reference specifications; pending source verification.

The Oliver 77 Row-Crop is a tractor with a rated output of 33 hp, making it one of the more compact options in its class. Produced from 1948 to 1954, this model features a 6-cylinder diesel liquid-cooled engine, which drives through two-wheel drive with a 6-speed gearbox. Its listed weight ranges from 4207 to 4502 pounds, and it is suited to jobs of approximately 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

33 hp

Max power

21.4 kW

Weight

4207 to 4502 pounds

Catalogue coverage

Variants represented

Richest spec table

104 rows

Recorded power

33 hp

Transmissions

6-speed unsynchronized gear

Production years

1948-1954

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerOliverReference

Row-Crop tractorReference

Built in Charles City, Iowa, USAReference

Original price was $3,000 in 1954Reference

Two-wheel driveReference

SteeringmanualReference

Differential mechanical drum brakesReference

Open operator station.Reference

Variants

77 Row-Croptricycle chassisReference

77 Standardstandard frontReference

77 Orchardlow-profileReference

Engine

Waukesha-Oliver 3.2L 6-cyl gasolineReference

Waukesha-Oliver 3.2L 6-cyl dieselReference

Waukesha-Oliver 3.2L 6-cyl LP gasReference

Fuel tank62.5 LReference

Plows2-3Reference

Drawbar (tested)24.5 kWReference

Belt (tested)27.7 kWReference

Waukesha-OliverReference

gasolineReference

6-cylinderReference

liquid-cooled vertical I-headReference

Displacement3.2 LReference

Bore/Stroke84 x 95 mmReference

Air cleaneroil bathReference

Compression6.75:1Reference

Rated RPM1600Reference

Firing order1-5-3-6-2-4Reference

Oil capacity7.6 LReference

Coolant capacity12.8 LReference

dieselReference

Compression15.75:1Reference

Starter volts12Reference

Coolant capacity17.0 LReference

LP gasReference

liquid-cooledReference

Starter volts6Reference

Belt power (max)25.3 kWReference

Max power21.4 kWReference

Belt power (max)27.7 kWReference

Max power24.5 kWReference

Belt power (max)26.7 kWReference

Max power22.7 kWReference

Belt power (max)27.1 kWReference

Max power24.1 kWReference

Transmission

6-speed unsynchronized gearReference

Typeunsynchronized gearReference

Gears6 forward and 2 reverseReference

Clutchdry discReference

PTO & Hydraulics

Rear PTOindependentReference

Rear PTO Type540 (1.375)Reference

Dimensions

Wheelbase230 cmReference

Weight4207 to 4502 poundsReference

Front tire5.50-16Reference

Rear tire10-38Reference

Ag front5.50-16Reference

Ag rear10-38Reference

Ag rear11-38Reference

Ag rear12-38Reference

Length353 cmReference

Width203 cmReference

Height190 cmReference

Height (hood)156 cmReference

Ground clearance63 cmReference

Front tread19/32 cmReference

Front tread152 to 227 cmReference

Rear tread152 to 234 cmReference

Operating1908 kgReference

Operating2042 kgReference

Ballasted3720 kgReference

77 Serial Numbers

Location:early: rear main frame and transmission, front-right sideReference

Location:later: below instrument panelReference

1948320001Reference

1949320241Reference

1950327901Reference

1951337243Reference

1952347904Reference

19533500001Reference

19544501667Reference

Final4504470Reference

FAQ: How to read a serial number table.Reference

Capacities

Diameter30 cmReference

Width18 cmReference

RPM992Reference

Speed938.78 meters/minReference

Test results

NTTL 404: gasoline 6-speed 2WDReference

NTTL 425: gasoline 6-speed 2WDReference

NTTL 457: diesel 6-speed 2WDReference

NTTL 470: LP gas 6-speed 2WDReference

Gasoline 6-speed 2WDOctober 21 - November 9, 1948Link: Nebraska Tractor Test 404 fileReference

Belt fuel use (max)11.4 l/hourReference

Drawbar performanceReference

Gear 3 used for power test.Reference

Max pull1848 kgReference

Gear 1 used for pull test.Reference

Gasoline 6-speed 2WDSeptember 23 - 29, 1949Link: Nebraska Tractor Test 425 fileReference

Belt fuel use (max)13.2 l/hourReference

Max pull2138 kgReference

Diesel 6-speed 2WDMay 21 - 28, 1951Link: Nebraska Tractor Test 457 fileReference

Belt fuel use (max)9.5 l/hourReference

Max pull2185 kgReference

LP gas 6-speed 2WDApril 28 - May 10, 1952Link: Nebraska Tractor Test 470 fileReference

Belt fuel use (max)17.4 l/hourReference

Max pull2167 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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