International Harvester 826 Tractor Specs (1969-1971)

International Harvester 826 Quick Answers

• What engines were offered in the IH 826?The published choices are the International Harvester D-358 six-cylinder diesel, plus C-301 six-cylinder gasoline and LP-gas engines. The diesel is listed at 358 cu in (5.9 L); the gasoline and LP versions are listed at 301 cu in (4.9 L).
• How much horsepower does an IH 826 have?Published claimed ratings differ by drivetrain: the gear-drive version is listed at 92 PTO hp and 79 drawbar hp, while the hydrostatic version is listed at 84 PTO hp and 61 drawbar hp. Treat those as configuration-specific claimed ratings, not one universal output.
• What transmissions were offered?The listed choices are an International Harvester Torque Amplifier transmission with 16 forward and 8 reverse gears, or a hydrostatic transmission with infinite forward and reverse travel in two ranges. Identify the installed transmission before using a gear-count, clutch, or parts detail.
• What PTO does an IH 826 use?The 826 is listed with an independent rear PTO and a 1000-rpm rear PTO type. Confirm the equipment on an individual tractor before matching an implement.
• What is the IH 826 fuel capacity?The listed fuel-tank capacity is 37 gal (140.0 L). Capacity alone does not identify the correct fuel, fill procedure, or maintenance practice for every engine version.
• Where are IH 826 serial numbers listed by year?Published year-start numbers are 7501 for both Farmall and IH in 1969; 8153 Farmall and 7518 IH in 1970; and 16352 Farmall and 7719 IH in 1971. Use the plate and exact tractor configuration when matching literature or parts.
• Which Nebraska tests cover an IH 826?The University of Nebraska archive lists Test 1045 for the International Farmall 826 Diesel, also labelled International 826 Diesel, and Test 1046 for the International Farmall 826 Hydrostatic Diesel, also labelled International 826 Hydrostatic Diesel. They are separate test configurations.
• Which manuals are available for the IH 826?Commercial references identify an IH-O-826 operator-manual reproduction, IH-P-826-2826 parts-catalog reproduction, GSS1410 service manual, and a multi-model 826 shop-manual preview. Match the serial, engine, and transmission before relying on any literature for a procedure or part number.

Engine and Power

Three separately listed six-cylinder engine choices appear for the 826: D-358 diesel and C-301 gasoline or LP-gas. The D-358 is listed at 358 cu in (5.9 L); the C-301 versions are listed at 301 cu in (4.9 L). Keep the engine type attached to every capacity and service decision.

Transmission

The 826 could be equipped with a 16-forward, 8-reverse Torque Amplifier transmission or a two-range hydrostatic transmission with infinite forward and reverse travel. These are different configurations, and their published power ratings and test records must stay separate.

PTO and Hitch

The 826 is listed with an independent rear PTO and a 1000-rpm rear PTO type. Confirm the shaft and fitted equipment on the individual tractor before selecting or setting up an implement.

Hydraulics

Published information lists open-center hydraulics and bull-gear final drives. Installed remotes, hitch equipment, and condition still matter when comparing one tractor with another.

Fluids, Battery, and Service Facts

The listed fuel-tank capacity is 37 gal (140.0 L). Use a complete matching operator manual for fluid grades, service intervals, procedures, and any serial-specific instructions rather than treating a capacity figure as a maintenance procedure.

Tires and Dimensions

Listed agricultural tire sizes are 9.5L-15 at the front and 18.4-34 at the rear, with a 105-inch wheelbase. Wheel and tire equipment can differ, so use the actual tractor for final fitment.

Electrical

Electrical rows are included when documented.

Serial Number Lookup

The published year-start sequences distinguish Farmall and IH labels after 1969: 8153 Farmall and 7518 IH for 1970, then 16352 Farmall and 7719 IH for 1971. The serial identity is the starting point for choosing configuration-sensitive literature and parts.

Configuration-specific values are split out where the same model has documented differences by engine, transmission, or equipment.

Manuals, Parts, and Nebraska Tests

The University of Nebraska archive has two separate 826 records: Test 1045 for the International Farmall 826 Diesel, also labelled International 826 Diesel, and Test 1046 for the International Farmall 826 Hydrostatic Diesel, also labelled International 826 Hydrostatic Diesel. They are linked individually because the drivetrain matters when comparing results.

Commercial literature references identify an IH-O-826 operator-manual reproduction covering gasoline, LP-gas, and diesel tractors; an IH-P-826-2826 parts-catalog reproduction; a GSS1410 service-manual listing; and a multi-model 826 shop-manual preview. These are useful routes to literature, but not substitutes for a complete serial-matched manual or catalog.

Before ordering a part or carrying out a repair, identify the engine, Torque Amplifier or hydrostatic transmission, and serial label on the tractor. The page links references for research; it does not replace the procedure, setting, or part applicability in the matching publication.

Parts Checks Before Ordering

• International Harvester 826 parts catalog listing - IH-P-826-2826826 parts-catalog reproduction listing; confirm serial, engine, and drivetrain against a complete catalog before ordering.View parts catalog
• International Harvester 826 service manual listing - GSS1410Multi-model 826, 1026, and 1456 service-manual listing; use the complete matching manual for repair settings and procedures.View service manual