International Harvester 955
Built: 5/1977–6/1982 · Series: C-Familie
More machines from model year 1977
International Harvester 946 to 1055XL (1970s) – the six-cylinders from Doncaster: XL for the comfort cab, throughout a 5.1 to 5.9-litre diesel, 62 to 74 kW, 318 to 381 Nm
International Harvester built its own range of larger six-cylinder field tractors for the European market at its British Doncaster plant, to which the 946, 955 and 1055 models belong. The number in the type designation orders the power class in ascending order, the XL suffix marks the more comfortable cab specification against the base version – the 955XL and 1055XL offered a roomier, better-insulated cab compared with the 946 and 955, with largely the same engines underneath.
Read on 3 more paragraphs
The register lists 5 versions uniformly with six cylinders, engines of 5,073 to 5,867 cm³, outputs of 62.2 to 74 kW and a rated speed around 2,200 rpm. On four models torque falls between 318.8 and 381 Nm; service weights range from 3,600 to 4,370 kg, lengths from 3,912 to 4,194 mm.
The Doncaster six-cylinders occupied the upper mid segment of European field tractors in the 1970s, competing with Ford, Massey Ferguson and the then-strengthening Fendt range; IH tractors were technically regarded as solid, if less widespread than the established European brands. After the sale of IH's agricultural division to Case in the early 1980s, the Doncaster models were carried over into Case IH ranges.
On used tractors, operating hours, the condition of clutch and multi-stage gearbox, hydraulic pump and linkage, the tightness of the cab glazing on XL models, and rust on frame and wings count; parts supply runs through Case IH as legal successor.
Sources: SpecCodex register, model data: International Harvester C-Familie, Case IH (Rechtsnachfolger International Harvester)
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 90 hp (65.9 kW)correct |
| Rated speed | 2,300 rpmcorrect |
| Torque | 318.8 Nmcorrect |
| Speed at max. torque | 1,500 rpmcorrect |
| Cylinders | 6correct |
| Displacement | 5,073 cm³correct |
| Bore | 98.4 mmcorrect |
| Stroke | 111.1 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 4,194 mmcorrect |
|---|---|
| Width | 2,049 mmcorrect |
| Height | 2,770 mmcorrect |
| Wheelbase | 2,630 mmcorrect |
| Ground clearance | 562 mmcorrect |
| Unladen weight | 4,090 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | IH Synchron 16+8correct |
| Front tyres | 7.50-18 AS / 11.2/10-28 AScorrect |
| Rear tyres | 16.9/14-38 AScorrect |
| Top speed | 30 km/hcorrect |
Origin and approval
| Construction | standard tractor, unit constructioncorrect |
|---|---|
| Units built | 4,031correct |
Where this model stands
Power-to-weight ratio: 16.1 kW/t (66 kW / 4.1 t)
Power class: Universal (40–100 hp)
Stronger than 60% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the International Harvester 955 have?
The International Harvester 955 delivers 90 hp.
How much does the International Harvester 955 weigh?
The unladen weight is 4,090 kg.
What engine does the International Harvester 955 have?
6 cylinders, 5,073 cm³ displacement, Diesel.
How fast does the International Harvester 955 go?
Top speed is 30 km/h.
What are the dimensions of the International Harvester 955?
4,194 mm × 2,049 mm × 2,770 mm.
When was the International Harvester 955 built?
Production years: 5/1977–6/1982.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 24 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: Wikibooks Traktorenlexikon (CC BY-SA 4.0) (retrieved August 2026) · Values adopted and presented in our own form; changes from the source are possible. · How we check the data
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.