Comparing the International Harvester 666 and the International Harvester 686

This page provides a detailed comparison of the specifications for the International Harvester 666 and the International Harvester 686. Explore key differences and similarities across various aspects, including Operating Weight, Cylinders and Type.

SpecificationInternational Harvester 666International Harvester 686
General Information
Manufacturer
International Harvester
International Harvester
Model
666
686
Category
Utility
Utility
Engine
Manufacturer
International Harvester
International Harvester
Model
D312
D310
Rated RPM
2,000RPM
2,000RPM
Cylinders
6
6
Displacement
312ci
310ci
Bore
3.86in
3.88in
Stroke
4.41in
4.38in
Transmission
Type
Sliding gear
Two-speed power shift
Dimensions & Weight
Length
162in
Width
89.4in
Height
105in
Operating Weight
7,053lb
7,770lb
Hydraulics
System Type
Open center
Steering Type
Hydrostatic power
Power
Hitch & Towing
Hitch Type
IH Fast Hitch
Three-Point Hitch
Hitch Category
II
II
Hitch Position
Rear
Rear
Chassis & Drive
Chassis Type
4x2 2WD
4x2 2WD
Drive Type
2WD
2WD
Steering Type
Hydrostatic power
Power
Brake Type
Dry disc
Disc
Electrical
Starter Type
Electric
Electric
Capacities
Coolant
21qts
Operator Station
Type
Open or Two-post ROPS (optional)
Two-post fixed ROPS