International Harvester 826

The International Harvester 826 is a tractor produced by International Harvester. It is equipped with a 301 ci 4.9 L engine. The listed engine power is 84.66 hp 63.1 kW. Transmission: International Harvester Torque Amplifier. Operating weight: 9860 lbs 4472 kg.

Engine Power

84.66 hp 63.1 kW

Fuel & Capacities

Gasoline

Transmission

International Harvester Torque Amplifier

Operating Weight

9860 lbs 4472 kg

Overview

	1969 - 1971 Standard-tread tractor

Production
Manufacturer	International Harvester
Standard-tread tractor
Built in Rock Island, Illinois, USA
Total built	316
Original price was $9,600 in 1971

Variants
International 826	standard
Farmall 826	row-crop
International 2826	industrial

International Harvester 826 Power
Gear Drawbar (claimed)	79 hp 58.9 kW
Hydro Drawbar (claimed)	61 hp 45.5 kW
Gear PTO (claimed)	92 hp 68.6 kW
Hydro PTO (claimed)	84 hp 62.6 kW
Drawbar (tested)	78.92 hp 58.9 kW
PTO (tested)	92.19 hp 68.7 kW
Performance test details ...

Mechanical
Two- or four-wheel drive
Final drives	bull gear
Differential lock	mechanical rear OptOptional
Power steering
Hydraulic dry disc brakes
Open operator station. Cab optional.

Hydraulics
Type	open center

Tractor hitch
Rear Type	II OptOptional

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000
	540/1000
Engine RPM	540@2100
	1000@2100

Dimensions & Tires
Wheelbase	105 inches 266 cm
Weight	9860 lbs 4472 kg
Front tire	9.5L-15
Rear tire	18.4-34
Full dimensions and tires ...

Electrical
Charging system	alternator
Batteries	2 (diesel)
	1 (gas/LP)
Battery volts	6 (diesel)
	1 (gas/LP)

References

Spring 1970 Buyer's Guide published by International Harvester
Spring 1971 Buyer's Guide published by International Harvester

Engine

Engine options
International Harvester 5.9L 6-cyl diesel
International Harvester 4.9L 6-cyl gasoline
International Harvester 4.9L 6-cyl LP-gas

Engine Detail — 358 ci / 5.9 L Diesel

Manufacturer	International Harvester D-358
Fuel Type	Diesel
Configuration	6-cylinder, liquid-cooled
Displacement	358 ci 5.9 L
Bore/Stroke	3.875x5.0625 inches 98 x 129 mm
Air cleaner	dual stage dry
Compression	16:1
Rated RPM	2400
Starter	electric
Starter volts	12

Engine Detail — 301 ci / 4.9 L Gasoline

Manufacturer	International Harvester C-301
Fuel Type	Gasoline
Configuration	6-cylinder, liquid-cooled
Displacement	301 ci 4.9 L
Bore/Stroke	3.8125x4.39 inches 97 x 112 mm
Starter	electric
Starter volts	12

Engine Detail — 301 ci / 4.9 L

Manufacturer	International Harvester C-301
Configuration	6-cylinder, liquid-cooled
LP-gas
Displacement	301 ci 4.9 L
Bore/Stroke	3.8125x4.39 inches 97 x 112 mm
Rated RPM	2400
Starter	electric
Starter volts	12
Coolant capacity	37 qts 35.0 L

Transmission

Transmission options
16-speed two-speed power shift
hydrostatic

Transmission — International Harvester Torque Amplifier

Transmission	International Harvester Torque Amplifier
Type	two-speed power shift
Gears	16 forward and 8 reverse

Transmission — infinite forward and reverse (2-range) hydrostatic

Type	hydrostatic
Gears	infinite forward and reverse (2-range)

Dimensions

International Harvester 826 Tires
Ag front	9.5L-15
Ag rear	18.4-34

Dimensions
Wheelbase	105 inches 266 cm
Gear Operating weight	9860 lbs 4472 kg
Ballasted weight	13840 lbs 6277 kg

Tests

Tractor Tests
NTTL 1045: D358 diesel Torque Amplifier 2WD
NTTL 1046: D358 diesel hydrostatic 2WD

Nebraska Tractor Test 1045
D358 diesel Torque Amplifier 2WD June 3 - 27, 1970 Link: Nebraska Tractor Test 1045 file
PTO performance
Power at rated engine speed	92.19 hp 68.7 kW
Fuel use	6.2 gal/hour 23.5 l/hour
Power at rated PTO speed	85.34 hp 63.6 kW
Fuel use	1.0 gal/hour 3.8 l/hour
Drawbar performance
Max power	78.92 hp 58.9 kW
Fuel use	6.2 gal/hour 23.5 l/hour
Gear 1-Hi-TA used for power test.
Max pull	9,631 lbs 4368 kg
Gear 3-Lo-TA used for pull test.

Nebraska Tractor Test 1046
D358 diesel hydrostatic 2WD June 6 - 27, 1970 Link: Nebraska Tractor Test 1046 file
PTO performance
Power at rated engine speed	84.66 hp 63.1 kW
Fuel use	6.3 gal/hour 23.8 l/hour
Power at rated PTO speed	79.00 hp 58.9 kW
Fuel use	5.6 gal/hour 21.2 l/hour
Drawbar performance
Max power	61.39 hp 45.8 kW
Fuel use	6.1 gal/hour 23.1 l/hour
Max pull	8,780 lbs 3982 kg

Photos

International Harvester 826

Recommended Implements & Sizing Guide

Engineering recommendations for International Harvester 826 based on its 84.66 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	3 to 4 Bottom (16")3 - 4 铧 (40 cm)	Heavy Duty	Suitable for medium loam and stubble turnover.
Rotary Cutter / MowerMowing & Clearing	7 to 8 ft (84-96 in)2.1 - 2.4 m	Heavy Duty	Heavy-duty twin spindle cutter for overgrown acreage.
Rotary TillerSeedbed Prep	78 to 84 in200 - 215 cm	Heavy Duty	Heavy commercial tiller with multi-speed gearbox.
Disc HarrowSecondary Tillage	10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙	Heavy Duty	Aggressive residue cutting in corn/cotton stubble.
Hay BalerHay & Forage	4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机	Heavy Duty	Silage and dry hay; 540 RPM PTO with slip-clutch.

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for International Harvester 826.

Estimated Continuous Field Runtime: 1.4 hrs

Approximately 1.4 hours of continuous field operation at ~75% rated power on a full tank (6.1 gal / 23.1 L).

Estimated 75% Load Fuel Burn~4.4 gal/hr (16.7 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours