International Harvester 1206 Tractor

The International Harvester 1206 is a landmark 1960s high-horsepower tractor with a turbocharged six-cylinder diesel and about 113 PTO horsepower. It helped establish IH's reputation in the 100-plus horsepower market and is highly regarded by collectors.

International Harvester 1206 specifications

What the 1206 is used for

The 1206 was intended for heavy field work, including plowing, tillage, planting, and large PTO-driven equipment. Farmall row-crop, IH standard-front, and Wheatland versions allowed it to serve different regional farm needs.

Today it is widely seen at tractor shows and is still used for occasional farm work by owners who maintain it properly. Its age, size, and non-synchronized transmission make it better suited to experienced operators.

Why the International Harvester 1206 stands out

The 1206 is historically important as one of IH's first turbocharged production farm tractors in this power range. Its distinctive styling, DT-361 engine, and collector demand make it one of the most recognizable classic IH models.

Buying a used International Harvester 1206

Evaluate the Torque Amplifier under load, because weak or slipping operation is a major repair concern. Inspect the diesel engine for starting quality, smoke, blow-by, coolant contamination, and turbo condition; also test the clutch, PTO, hydraulic system, brakes, and steering. Confirm the exact version and production details through TractorData.com or serial-number records.

International Harvester 1206 frequently asked questions

How much horsepower does an IH 1206 make?

It is commonly rated at 112.6 PTO horsepower, the same figure recorded in Nebraska testing.

When was the IH 1206 produced?

International Harvester built the 1206 from 1965 through 1967.

Is the IH 1206 collectible?

Yes. Its historical importance, turbocharged engine, and strong enthusiast following make it a highly collectible classic tractor.

Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used tractors vary by condition and region. Page updated Aug 4, 2026.

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