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International Harvester 84 series

7 models in this series

The 84 series from International Harvester comprises 7 models. Rated output ranges from 36 to 80 hp.

International Harvester 84 series (1977–1985) – the last World Wide range from Doncaster: 384 to 884 and Hydro 84, the final digits 84 as series, the first digit as size class

The 84 series was the successor to the 74s and the last tractor range International Harvester built at the British Doncaster plant under its own name – presented in 1977, ended in 1985 with the merger into Case IH, with engines from Neuss and transmissions from Doncaster and Saint-Dizier, as the group's World Wide logic provided. The type logic: the final digits 84 mark the series, the first digit orders the size in ascending order – 384 the small three-cylinder around 36 hp, 484 and 584 the four-cylinders of the mid-range, 684, 784 and 884 the big models up to about 80 hp – Hydro 84 the version with stepless hydrostatic transmission, which remained rare in Europe. The engines are IH's own diesels from Neuss: the three-cylinder D-155 of 2.5 litres and the four-cylinders D-179, D-206 and D-239 of 2.9 to 3.9 litres, plus the D-268 of 4.4 litres in the 884, at 2,100 to 2,400 rpm.

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The register lists 7 versions with 26.5 to 58.8 kW from three- and four-cylinders of 2,523 to 4,398 cm³, torque from 161 to 272 Nm, unladen weights from 1,921 to 2,625 kg, lengths from 3,327 to 3,720 mm, widths from 1,692 to 2,680 mm and heights from 1,494 to 2,568 mm.

The 84s were common in Britain, Ireland, Scandinavia and Germany and continued for some years after 1985 as the Case IH 85 series (385 to 885); they are regarded as the most reliable of the late IH tractors.

On used tractors, operating hours, engine condition and injection pump, clutch (dual clutch for the PTO), gearbox and synchromesh, hydraulics and cab count; parts run through Case IH and British IH specialists.

Sources: SpecCodex register, model data: International Harvester 84er-Baureihe, International Harvester (Wikipedia)

Models compared

7 of 7 models.

	3841977–1982	4841977–1981	5841977–1981	6841977–1981	7841977–1981	8841979–1981	HYDRO-841977–1981
Power	26.5 kW	36.8 kW	44.1 kW	50.7 kW	56.6 kW	58.8 kW	56.6 kW
Rated speed	2,100 rpm	2,200 rpm	2,300 rpm	2,300 rpm	2,400 rpm	2,400 rpm	2,400 rpm
Cylinders	4	3	4	4	4	4	4
Displacement	2,523 cm³	2,934 cm³	3,382 cm³	3,912 cm³	4,032 cm³	4,398 cm³	4,032 cm³
Torque	161 Nm	163 Nm	175 Nm	220 Nm	216 Nm	272 Nm	217 Nm
Top speed	25 km/h	25 km/h	25 km/h	25 km/h	25 km/h	25 km/h	30 km/h
Wheelbase	1,943 mm	2,007 mm	2,146 mm	2,235 mm	2,235 mm	2,255 mm	2,235 mm
Length	3,327 mm	3,411 mm	3,650 mm	3,720 mm	3,660 mm	3,720 mm	3,680 mm
Width	1,692 mm	2,680 mm	1,760 mm	1,780 mm	1,750 mm	1,998 mm	1,780 mm
Height	1,494 mm	2,449 mm	2,480 mm	2,530 mm	2,550 mm	2,568 mm	2,540 mm
Unladen weight	1,921 kg	2,330 kg	2,270 kg	2,350 kg	2,376 kg	2,625 kg	2,438 kg

International Harvester 84 series

International Harvester 84 series (1977–1985) – the last World Wide range from Doncaster: 384 to 884 and Hydro 84, the final digits 84 as series, the first digit as size class

Models compared

Models

Tractor in 3D section

384

484

584

684

784

884

HYDRO-84