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International Harvester 686

International Harvester 686 tractor photo
1976 - 1980
Previous model:International Harvester 666





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.
 

Production:

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

International Harvester 686 Engines:

   International Harvester 5.1L 6-cyl diesel
   International Harvester 4.8L 6-cyl gasoline
full engine details ...
 

Capacity:

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

3-Point Hitch:

Rear Type:II
 

Power Take-off (PTO):

Rear PTO:independent
Rear RPM:540 (1.375)
 

Dimensions & Tires:

Wheelbase:103 inches [261 cm]
Weight:7770 lbs [3524 kg]
Front tire:7.50-16
Rear tire:15.5-38
full dimensions and tires ...
 

686 Serial Numbers:

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

how to read serial numbers...

 

International Harvester 686 Power:

Drawbar (tested):58.01 hp [43.3 kW]
PTO (tested):66.36 hp [49.5 kW]
power test details ...
 

Mechanical:

Chassis:4x2 2WD
Steering:power
Brakes:disc
Cab:Two-post fixed ROPS.
 

Hydraulics:

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

Battery:

 

Page information:

Last update:April 5, 2019
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