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Tractor · 1955Unverified

Massey-Harris 555

Name: Massey-Harris 555
Brand: Massey-Harris

Massey-Harris 555 — Standard-tread tractor · 71 hp. Reference specifications; pending source verification.

The Massey-Harris 555 is a mid-range tractor model, with a power rating of approximately 71 hp. It was manufactured from 1955 to 1958. The tractor features a 4-cylinder diesel liquid-cooled engine and two-wheel drive with a 4-speed gearbox. Its operating weight is 3402 kg, and it is capable of handling operations of up to 200 acres.

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

Catalogue coverage

Variants represented

Richest spec table

49 rows

Recorded power

71 hp

Recorded weight

3402 kg

Transmissions

4-speed gear

Production years

1955-1958

Verified variants

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

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.

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