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International Harvester 74 series

8 models in this series

The 74 series from International Harvester comprises 8 models. Rated output ranges from 35 to 66 hp.

International Harvester 74 series (1970–1977) – the World Wide tractors from Doncaster: 354 to 674, the final digits 74 as series, the first digits as size class

The 74 series was International Harvester's mid-range for the world outside North America: presented in 1970 and built at the British Doncaster plant, which had made the small IH tractors since 1949, with sister plants in France (Saint-Dizier) and Germany (Neuss) contributing transmissions and engines. The type logic: the final digits 74 mark the series, the first digits order the size in ascending order – 354 and 374 the small models succeeding the B-275 and B-414, 444 and 474 the mid-range, 574 and 674 the big ones at about 67 and 72 hp; the 475 is the development of the 474. The engines are IH four-cylinders from Neuss and Doncaster, as diesels and – for the British and export markets – as petrol engines, of 2.3 to 3.9 litres at 1,600 to 2,400 rpm.

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The register lists 8 versions with 25.7 to 48.5 kW from four-cylinders of 2,346 to 3,914 cm³, torque from 132 to 207 Nm, unladen weights from 1,697 to 2,565 kg, lengths from 2,997 to 3,570 mm, widths from 1,621 to 1,753 mm and heights from 1,448 to 2,235 mm.

The 74s were the best-selling IH tractors of their time in Britain, Ireland, Scandinavia and the Commonwealth countries; in 1977 the 84 series followed in the same logic, with which Doncaster continued into the Case IH era.

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

Sources: SpecCodex register, model data: International Harvester 74er-Serie, International Harvester (Wikipedia)

Models compared

8 of 8 models.

	3541970–1974	3741976–1977	4441972–1977	4741973–1974	4751974–1975	5741970–1975	6741973–1975	6741973–1978
Power	25.7 kW	25.7 kW	30.9 kW	42.7 kW	43.4 kW	48.5 kW	47.8 kW	47.8 kW
Rated speed	1,875 rpm	1,600 rpm	2,000 rpm	2,300 rpm	2,200 rpm	2,200 rpm	2,400 rpm	2,400 rpm
Cylinders	4	4	4	4	4	4	4	4
Displacement	2,346 cm³	2,523 cm³	2,523 cm³	3,382 cm³	3,474 cm³	3,914 cm³	3,912 cm³	3,912 cm³
Torque	132 Nm	157 Nm	–	–	178 Nm	207 Nm	–	–
Top speed	25 km/h	25 km/h	25 km/h	25 km/h	20 km/h	25 km/h	25 km/h	25 km/h
Wheelbase	1,943 mm	1,943 mm	1,778 mm	2,146 mm	2,146 mm	2,160 mm	2,146 mm	2,146 mm
Length	3,200 mm	2,997 mm	3,073 mm	3,430 mm	3,430 mm	3,531 mm	3,570 mm	3,570 mm
Width	1,626 mm	1,621 mm	1,651 mm	1,630 mm	1,630 mm	1,753 mm	1,750 mm	1,750 mm
Height	1,448 mm	2,235 mm	1,473 mm	1,510 mm	1,510 mm	2,197 mm	2,190 mm	2,190 mm
Unladen weight	1,697 kg	2,231 kg	1,873 kg	2,533 kg	2,565 kg	2,342 kg	2,316 kg	2,316 kg

International Harvester 74 series

International Harvester 74 series (1970–1977) – the World Wide tractors from Doncaster: 354 to 674, the final digits 74 as series, the first digits as size class

Models compared

Models

Tractor in 3D section

354

374

444

474

475

574

674

674