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Tractor · 1972Unverified

Long 550

Name: Long 550
Brand: Long

Long 550 — Utility tractor · 54 hp. Reference specifications; pending source verification.

The Long 550 is a compact tractor with a rated output of 54 hp, fitting it into a smaller category within its class. It was manufactured between 1972 and 1975. This model is equipped with a 4-cylinder diesel liquid-cooled engine, coupled to a two-wheel drive system and an 8-speed gearbox. Its listed weight is 2072 kg, suitable for tasks covering approximately 200 acres.

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

Rated power

54 hp

Max power

34.8 kW

Weight

2072 kg

Catalogue coverage

Variants represented

Richest spec table

66 rows

Recorded power

54 hp

Recorded weight

2072 kg

Transmissions

8-speed gear

Production years

1972-1975

Verified variants

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

Hover a source tag to verify

Overview

DistributorLongReference

ManufacturerUTB/UniversalReference

Utility tractorReference

Built in Brasov, RomaniaReference

Two-wheel driveReference

SteeringmanualReference

Steeringpower assistReference

Independent contracting band brakesReference

Open operator station.Reference

Engine

Uzina 3.1L 4-cyl dieselReference

Fuel tank53.9 LReference

Engine44.7 kWReference

Drawbar (claimed)34.8 kWReference

Drawbar (tested)34.8 kWReference

UzinaReference

dieselReference

4-cylinderReference

liquid-cooledReference

Displacement3.1 LReference

Bore/Stroke95 x 110 mmReference

Power44.7 kWReference

Fuel systemdirect injectionReference

Compression17:1Reference

Rated RPM2400Reference

Starter volts12Reference

Oil capacity10.4 LReference

Coolant capacity13.9 LReference

Power at rated engine speed40.0 kWReference

Max power34.8 kWReference

Transmission

8-speed gearReference

TypegearReference

Gears8 forward and 2 reverseReference

Clutch279.4mm dry discReference

Oil capacity17.0 LReference

PTO & Hydraulics

PTO (claimed)40.0 kWReference

PTO (tested)40.0 kWReference

Typeopen centerReference

Pressure147.1 barReference

Pump flow21.8 lpmReference

Rear TypeII/IReference

Rear lift1206 kgReference

Rear PTO Type540 (1.375)Reference

Engine RPM540@1970Reference

Power at rated PTO speed35.5 kWReference

Dimensions

Wheelbase207 cmReference

Weight2072 kgReference

Front tire7.50-16Reference

Rear tire18.4-28Reference

Ag front7.50-16Reference

Ag rear18.4-28Reference

Ag rear14.9x28Reference

Ag rear16.9x28Reference

Operating weight2072 kgReference

Ballasted weight4132 kgReference

Front tread132 to 200 cmReference

Rear tread120 to 189 cmReference

Electrical

GroundnegativeReference

Battery volts12Reference

Test results

Diesel 8-speed 2WDSeptember 21 - October 2, 1972Link: Nebraska Tractor Test 1109 fileReference

PTO performanceReference

Fuel use13.6 l/hourReference

Fuel use12.1 l/hourReference

Drawbar performanceReference

Gear 5 used for power test.Reference

Max pull3149 kgReference

Gear 2 used for pull test.Reference

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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