Tractor · 1958Unverified
Oliver 550
Oliver 550 — Utility tractor · 41 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
41 hp
Max power
30.9 kW
Weight
3070 to 3730 pounds
Hover a source tag to verify
Overview
ManufacturerOliverReference
Utility tractorReference
Built in Charles City, Iowa, USAReference
Total built20,368 (Oliver)Reference
Total built3,915 (Cockshutt)Reference
Original price was $4,400 in 1975Reference
During the first year of production the Oliver 550 had the same 2.4L engine as the Super 55.Reference
Two-wheel driveReference
Steeringpower assistReference
Differential mechanical dry disc brakesReference
Open operator station.Reference
Engine
Oliver-Waukesha 2.5L 4-cyl gasolineReference
Oliver-Waukesha 2.5L 4-cyl dieselReference
Drawbar (claimed)26.3 kWReference
Drawbar (tested)26.4 kWReference
Oliver-WaukeshaReference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement2.5 LReference
Bore/Stroke92 x 95 mmReference
Air cleaneroil bathReference
Compression7.75:1Reference
Rated RPM2000Reference
Starter volts12Reference
Oil capacity3.8 LReference
dieselReference
Bore/Stroke92 x 95 mmReference
Compression16:1Reference
Max power30.9 kWReference
Max power26.4 kWReference
Max power29.2 kWReference
Max power26.2 kWReference
Transmission
6-speed gearReference
TypegearReference
Gears6 forward and 2 reverseReference
Clutchdry discReference
Oil capacity18.9 LReference
PTO & Hydraulics
PTO (claimed)30.9 kWReference
PTO (tested)30.9 kWReference
Hydraulic system9.5 LReference
Typeopen centerReference
Capacity9.5 LReference
Pump flow19.9 lpmReference
Rear TypeIReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Capacities
Fuel49.2 LReference
Dimensions
Wheelbase185 cmReference
Weight3070 to 3730 poundsReference
Front tire6.00-16Reference
Rear tire12-26Reference
Ag front6.00-16Reference
Ag rear12-26Reference
Length304 cmReference
Height (steering wheel)147 cmReference
Height (hood)127 cmReference
Front tread121 to 193 cmReference
Rear tread121 to 193 cmReference
Gas Shipping1392 kgReference
Diesel Shipping1437 kgReference
Operating1691 kgReference
550 Serial Number Location
Serial number plate located on the left side of the Oliver 550, above the foot rest.Reference
550 Serial Numbers
195860501Reference
195972632Reference
196084416Reference
1961111868Reference
1962117541Reference
1963127365Reference
1964140620Reference
1965162265Reference
1966171923Reference
1967186165Reference
1968206095Reference
1969213340Reference
1970222833Reference
1971226965Reference
1972232918Reference
1973238237Reference
1974248375Reference
1975259255Reference
Final259491Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundpositiveReference
Batteries2 (diesel)Reference
Batteries1 (gas)Reference
Battery volts6 (diesel)Reference
Battery volts12 (gas)Reference
Test results
NTTL 697: gasoline 6-speed 2WDReference
NTTL 698: diesel 6-speed 2WDReference
Gasoline 6-speed 2WDMay 11 - 26, 1959Link: Nebraska Tractor Test 697 fileReference
PTO performanceReference
Fuel use12.5 l/hourReference
Drawbar performanceReference
Gear 4 used for power test.Reference
Max pull2334 kgReference
Gear 2 used for pull test.Reference
Diesel 6-speed 2WDMay 13 - 26, 1959Link: Nebraska Tractor Test 698 fileReference
Fuel use10.6 l/hourReference
Max pull2317 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.