How do I know which engine my 706 has?

The 706 was offered with four engine variants — 4-cylinder gas, 6-cylinder gas, 4-cylinder diesel, and 6-cylinder diesel. The engine variant is identified by the casting numbers and the engine tag (usually on the block near the starter). The service manual includes the identification table.

Is the Torque Amplifier transmission service covered?

Yes. The Torque Amplifier 8-speed transmission is covered with full rebuild procedures, adjustment specifications, and pressure-test procedures.

Does this manual cover the 806 too?

No. The 806 is the larger 06-series sibling with a bigger engine and different specifications. If you have an 806, search for the 806 manual specifically — even though many service procedures are similar.

Is this original IH or aftermarket reprint?

Aftermarket reprint produced by Jensales, the leading vintage equipment manual publisher. The content is the same factory shop information; the binding is professional reprint quality designed to hold up to shop use.

How long does shipping take?

Ships within 1-2 business days. Most orders arrive in 3-5 business days. Free shipping on US orders over $75.

International Harvester 706 Service Manuals

The IH 706 — the tractor that launched the legendary 06 series and modernized International Harvester for the 1960s row-crop farm. (1963-1967)

Years covered

1963-1967

Serial range

Serial No. 501 and up (production year breaks in operator's manual)

Original or reprint

Aftermarket reprints of the factory shop and operator's manuals from International Harvester, distributed by Jensales — the leading vintage equipment manual publisher.

International Harvester 706 Manual Types

Service Manual

Full shop teardown and rebuild procedures — multiple engine variants (4-cylinder and 6-cylinder, gas and diesel), Torque Amplifier transmission, hydraulics, electrical.

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Parts Manual

Exploded-view diagrams and part numbers for every assembly. Essential for identifying which engine and transmission variant you have.

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Operator's Manual

Day-to-day operating procedures, maintenance schedules, and operation guidance for the 706.

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International Harvester 706 Manuals in Stock

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Every International Harvester 706 manual we carry

Service Manuals (5)

Parts Manuals (2)

Operators Manuals (1)

Farmall International Harvester 706 (37237 and Up) Gas and Diesel Operators Manual148 pages · Printed

Manual Kits (4)

About the International Harvester 706

The International Harvester 706 was produced from 1963 to 1967 at the Farmall Works in Rock Island, Illinois, launching IH's 06 series and replacing the aging 460/560 line. Available with four engine options — 4-cylinder and 6-cylinder gasoline, and 4-cylinder and 6-cylinder diesel variants producing approximately 73-80 PTO horsepower — the 706 introduced the Torque Amplifier 8-speed transmission to a new generation of operators and helped re-establish IH's competitiveness in the row-crop class. Approximately 4,800 units were built. The 706 is a foundational tractor in the IH restoration community and the parent of the entire 06-series that followed.