Wikitractor

International Harvester 686: all source data

All 68 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.

Overview

Production
ManufacturerInternational Harvester
Total built6,000
(no label)Original price was $14,700 in 1980
(no label)The International Harvester 686 is nearly identical to the IH 666, it was simply renamed when the 86 series arrived in 1976. One major change did occur in 1979, when the 310 diesel replaced the 312.
Engine
(no label)International Harvester 5.1L 6-cyl diesel
(no label)International Harvester 4.8L 6-cyl gasoline
Transmission
(no label)10-speed two-speed power shift
Power
Drawbar (tested)58.01 hp | 43.3 kW
PTO (tested)66.36 hp | 49.5 kW
Mechanical
(no label)Two-wheel drive
(no label)Power steering
(no label)Disc brakes
(no label)Two-post fixed ROPS.
Capacity
Fuel31 gal | 117.3 L
Hydraulic system16 gal | 60.6 L
Hydraulics
Typeopen center
Capacity16 gal | 60.6 L
Total flow12 gpm | 45.4 lpm
Hitch
Rear TypeII
Pto
Rear PTOindependent
Rear PTO Type540 (1.375)
Dimensions
Wheelbase103 inches | 261 cm
Weight7770 lbs | 3524 kg
Front tire7.50-16
Rear tire15.5-38

Engine

Engine options
(no label)International Harvester 5.1L 6-cyl diesel
(no label)International Harvester 4.8L 6-cyl gasoline
Engine detail
(no label)International Harvester D310
(no label)diesel
(no label)6-cylinder
(no label)liquid-cooled
(no label)German (Nuess) built diesel that replaced the 312 diesel in 1979.
Displacement310 ci | 5.1 L
Bore/Stroke3.875x4.375 inches | 98 x 111 mm
Rated RPM2000
Starter volts12
(no label)International Harvester D-312
(no label)diesel
(no label)6-cylinder
(no label)liquid-cooled
Displacement312 ci | 5.1 L
Bore/Stroke3.875x4.410 inches | 98 x 112 mm
Air cleanerdry
Rated RPM2000
Idle RPM900-2000
Oil capacity12 qts | 11.4 L
Coolant capacity (Coolant)21 qts | 19.9 L
(no label)International Harvester C291
(no label)gasoline
(no label)6-cylinder
(no label)liquid-cooled
Displacement291 ci | 4.8 L
Bore/Stroke3.75x4.39 inches | 95 x 112 mm
Rated RPM2000

Transmission

Transmission
TransmissionTorque Amplifier
Typetwo-speed power shift
Gears10 forward and 2 reverse
Oil capacity64 qts | 60.6 L

Dimensions

Tires
Ag front7.50-16
Ag rear15.5-38
Dimensions
Wheelbase103 inches | 261 cm
Length162 inches | 411 cm
Width89.4 inches | 227 cm
Height (exhaust)105 inches | 266 cm
Diesel Shipping weight (Diesel)7770 lbs | 3524 kg
Ballasted weight10340 lbs | 4690 kg
Front tread58 to 82 inches | 147 to 208 cm
Rear tread56 to 96 inches | 142 to 243 cm