Tractor · 1955Unverified
Massey-Harris 555
Massey-Harris 555 — Standard-tread tractor · 71 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
71 hp
Max power
38.1 kW
Weight
3402 kg
Hover a source tag to verify
Overview
ManufacturerMassey-HarrisReference
Standard-tread tractorReference
Original price was $4,200 in 1958Reference
Two-wheel driveReference
Open operator station.Reference
Engine
Continental 6.3L 4-cyl gasolineReference
Continental 6.3L 4-cyl dieselReference
Fuel tank104.1 LReference
Drawbar (tested)42.9 kWReference
Belt (tested)49.9 kWReference
Continental J382Reference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement6.3 LReference
Bore/Stroke114 x 152 mmReference
Rated RPM1350Reference
Continental J382DReference
dieselReference
Belt power (max)44.0 kWReference
Max power38.1 kWReference
Belt power (max)49.9 kWReference
Max power42.9 kWReference
Transmission
4-speed gearReference
TypegearReference
Gears4 forward and 1 reverseReference
Clutchdry discReference
PTO & Hydraulics
PTO (claimed)52.9 kWReference
Rear PTO Type540Reference
Engine RPM521@1350Reference
Dimensions
Wheelbase224 cmReference
Weight3402 kgReference
Front tire7.50-18Reference
Rear tire14-34Reference
Ag front7.50-18Reference
Ag rear14-34Reference
Rear tread145 cmReference
555 Serial Number Location
Right side of tractor frame.Reference
Test results
NTTL 452: diesel 4-speed 2WDReference
NTTL 455: gasoline 4-speed 2WDReference
Diesel 4-speed 2WDOctober 17 - 26, 1950Link: Nebraska Tractor Test 452 fileReference
Belt fuel use (max)14.8 l/hourReference
Drawbar performanceReference
Gear 3 used for power test.Reference
Max pull2660 kgReference
Gear 1 used for pull test.Reference
Gasoline 4-speed 2WDApril 16 - May 7, 1951Link: Nebraska Tractor Test 455 fileReference
Belt fuel use (max)22.3 l/hourReference
Max pull2892 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.