International Harvester 986 Specs ( 1976-1981 )
Overview
The International Harvester 986 is a row-crop farm tractor produced in Rock Island, Illinois, between 1976 and 1981. It features an IH 7.1L 6-cylinder diesel engine and a 16-speed Torque Amplifier transmission, with a standard cab configuration that includes air-conditioning.
Ideal Applications
Nebraska Test Performance:
In Nebraska Tractor Test 1255, the model achieved a maximum PTO power of 105.68 hp at rated engine speed and a maximum drawbar pull of 12,176 lbs.
Transmission and Drive Configuration:
The tractor is equipped with a two-speed power shift Torque Amplifier transmission providing 16 forward and 8 reverse gears, available in both two-wheel and four-wheel drive variants.
Physical Dimensions and Capacity:
This model has an operating weight of 13,030 lbs for 2WD versions, a 105-inch wheelbase for wide-front configurations, and a 50-gallon fuel capacity.
Production
| Description | Row-Crop tractor / Built in Rock Island, Illinois, USA |
|---|---|
| Manufacturer | International Harvester |
| Original price | $31,100 (1981) |
| Total built | 20,554 |
Engine
| Engine type | International Harvester 7.1L 6-cyl diesel |
|---|---|
| Air cleaner | dual dry element |
| Bore/Stroke | 4.30x5.00 inches (109 x 127 mm) |
| Coolant capacity | 26 qts (24.6 L) |
| Description | International Harvester D-436 / diesel / 6-cylinder / liquid-cooled |
| Displacement | 436 ci (7.1 L) |
| Rated RPM | 2400 |
| Oil capacity | 14 qts (13.2 L) |
| Drawbar (claimed) | 92 hp (68.6 kW) |
| Drawbar (tested) | 90.15 hp (67.2 kW) |
| PTO (claimed) | 105 hp (78.3 kW) |
| PTO (tested) | 105.68 hp (78.8 kW) |
Transmission
| Gears | 16 forward and 8 reverse |
|---|---|
| Oil capacity | 90 qts (85.2 L) |
| Oil type | IH Hy-Tran/B-6 |
| Transmission | Torque Amplifier |
| Transmission type | 16-speed two-speed power shift |
| Type | two-speed power shift |
Mechanical
| Cab | Cab standard with air-conditioning. Open operator station and four-post ROPS available. |
|---|---|
| Description | Hydraulic disc brakes |
| Drive type | Two- or four-wheel drive |
| Final drives | bull gear |
| Steering | power assist |
Capacity
| Fuel | 50 gal (189.2 L) |
|---|---|
| Hydraulic system | 22.5 gal (85.2 L) |
Hydraulics
| Capacity | 22.5 gal (85.2 L) |
|---|---|
| Type | open center |
| Valves | 2 |
Hitch
| Rear lift (at 24"/610mm) | 5760 lbs (2612 kg) |
|---|---|
| Rear Type | II |
PTO
| Engine RPM | 540@2100 |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540/1000 (1.375) |
Electrical
| Batteries | 2 |
|---|---|
| Battery CCA | 470 |
| Battery volts | 12 |
| Charging amps | 42 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Ground clearance | 13 inches (33 cm) |
|---|---|
| Height (cab) | 112 inches (284 cm) |
| Length | 167 inches (2WD) (424 cm) |
| Wheelbase | 105 inches (wide-front) (266 cm) |
| Width | 102 inches (259 cm) |
| Front tire | 10.00-16 |
| Rear tire | 18.4-38 |
| Weight | 10500 to 13030 pounds |
| Wheelbase | 105 inches (wide-front) (266 cm) |
| Ag front | 10.00-16 |
| Ag rear | 18.4-38 |
986 Serial Number Location
| Description | Rear frame, right side in front of rear axle. |
|---|
986 Serial Numbers
| 1976 | 8601 |
|---|---|
| 1977 | 11145 |
| 1978 | 15624 |
| 1979 | 19288 |
| 1980 | 22696 |
| 1981 | 25220 |
| Description | FAQ: How to read a serial number table. |
International Harvester 986 Weight
| Operating | 13,030 lbs (2WD) (5910 kg) |
|---|---|
| Shipping | 10,500 lbs (4762 kg) |
Nebraska Tractor Test 1255
| Description | Diesel Torque Amplifier 2WDSeptember 15 - 29, 1977Link: Nebraska Tractor Test 1255 file / PTO performance / Drawbar performance / Gear 4-Low-Direct used for power test. / Gear 2-Low-Direct used for pull test. |
|---|---|
| Fuel use | 7.2 gal/hour (27.3 l/hour) / 6.8 gal/hour (25.7 l/hour) / 7.1 gal/hour (26.9 l/hour) |
| Max power | 90.15 hp (67.2 kW) |
| Max pull | 12,176 lbs (5523 kg) |
| Power at rated engine speed | 105.68 hp (78.8 kW) |
| Power at rated PTO speed | 105.68 hp (78.8 kW) |
References
| Description | 1978 Buyer's Guide published by International Harvester / 1979 Buyer's Guide published by International Harvester / Buyer's Guide 1981 published by International Harvester / Series 86 Tractors published in 1976, by International Harvester / 86 Series Tractors - The pro-ag line published in 1976, by International Harvester / Operator's Manual 786, 886, 986, 1086, 1486, 1586 and Hydro-186 Tractors (1096207R4) published in 1986 |
|---|
Speeds
| Description | 18.4-34 rear tires. |
|---|
Variants
| 986 Hi-Clear | high clearance |
|---|