International Harvester 686

International Harvester 686 Technical Specifications

International Harvester 686 is a Row-Crop tractor that was produced by the John Deere between 1976 – 1980.

Below you will find detailed technical specifications for International Harvester 686 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

International Harvester 686 Production













Manufacturer:
Manufacturer: International Harvester
Total built: 6,000
Original price: $14,700 (1980 )
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.


International Harvester 686 Power







Engine:
Drawbar (tested): 58.01 hp
43.3 kW
PTO (tested): 66.36 hp
49.5 kW

International Harvester 686 Mechanical






















Chassis: 4×2 2WD
Steering: power
Brakes: disc
Cab: Two-post fixed ROPS.
Transmission: 10-speed two-speed power shift

Capacity







Fuel: 31 gal
117.3 L
Hydraulic system: 16 gal
60.6 L

Hydraulics










Type: open center
Capacity: 16 gal
60.6 L
Total flow: 12 gpm
45.4 lpm

Tracktor Hitch




Rear Type: II

Power Take-off (PTO)







Rear PTO: independent
Rear RPM: 540 (1.375)

Title serial numbers





















Location: Clutch housing on right side.
1976: 7500
1977: 7729
1978: 9899
1979: 11417
1980: 12923


how to read serial numbers…

What year is my International Harvester 686? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

International Harvester 686 Engine detail
























Engine Detail
International Harvester D310
diesel
6-cylinder
liquid-cooled
German (Nuess) built diesel that replaced the 312 diesel in 1979.
Displacement: 310 ci
5.1 L
Bore/Stroke: 3.875×4.375 inches
98 x 111 mm
Rated RPM: 2000
Starter volts: 12



International Harvester 686 Transmission overview

Engine Oil












Transmission: Torque Amplifier
Type: two-speed power shift
Gears: 10 forward and 2 reverse
Oil capacity: 64 qts
60.6 L

International Harvester 686 Dimensions

























Wheelbase: 103 inches
261 cm
Length: 162 inches
411 cm *Overall length with 3-point hitch
Width: 89.4 inches
227 cm *Minimum width
Height (exhaust): 105 inches
266 cm
Diesel Shipping weight: 7770 lbs
3524 kg
Ballasted weight: 10340 lbs
4690 kg
Front tread: 58 to 82 inches
147 to 208 cm
Rear tread: 56 to 96 inches
142 to 243 cm

International Harvester 686 Tests

Nebraska Tractor Test 1151







































Nebraska Tractor Test 1151
312 diesel Torque Amplifier 2WD
November 3 – 14, 1973
Link: Nebraska Tractor Test 1151 file
PTO performance
Power at rated engine speed: 66.29 hp
49.4 kW
Fuel use: 4.7 gal/hour
17.8 l/hour
Drawbar performance
Max power: 58.01 hp
43.3 kW
Fuel use: 4.6 gal/hour
17.4 l/hour
Gear 3-Direct used for power test.
Max pull: 8,012 lbs
3634 kg
Gear 2-TA used for pull test.










Nebraska Tractor Test 1152



































Nebraska Tractor Test 1152
Gasoline Torque Amplifier 2WD
November 5 – December 3, 1973
Link: Nebraska Tractor Test 1152 file
PTO performance
Power at rated engine speed: 66.30 hp
49.4 kW
Fuel use: 12.0 gal/hour
45.4 l/hour
Drawbar performance
Max power: 57.29 hp
42.7 kW
Fuel use: 5.7 gal/hour
21.6 l/hour
Gear 3-Direct used for power test.
Max pull: 7,981 lbs
3620 kg
Gear 2-TA used for pull test.







Nebraska Tractor Test 1336



































Nebraska Tractor Test 1336
310 diesel Torque Amplifier 2WD
March 26 – April 16, 1980
Link: Nebraska Tractor Test 1336 file
PTO performance
Power at rated engine speed: 66.36 hp
49.5 kW
Fuel use: 4.1 gal/hour
15.5 l/hour
Drawbar performance
Max power: 57.71 hp
43.0 kW
Fuel use: 4.1 gal/hour
15.5 l/hour
Gear 3-Direct used for power test.
Max pull: 8,013 lbs
3634 kg
Gear 1-Direct used for pull test.

FAQ

Is International Harvester 686 a good tractor?

The International Harvester 686 is one of the great tractors in the International Harvester stable, and it has earned International Harvester a fantastic reputation.

How much oil does a International Harvester 686 take?

Check out the International Harvester 686 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year International Harvester made the 686?

The International Harvester 686 was an agricultural tractor model made from 1976 – 1980

Where is the serial number on a International Harvester 686?

Lookup clutch housing on right side.

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