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International DCOF-405
International 1961 DCOF-405.jpg
International 1964 DCOF-405 sleeper tilt-cab 6x4 tractor with tandem-axle refrigerated van semitrailer at American Truck Historical Society show, Reno, Nevada, 2001
Manufacturer International Harvester Co.
Introduced date 1957
Discontinued date 1964
Preceding model International DCF-405
Superseded by COF-4000D
Production locations Emeryville, California
Capacity tons/GVW/GCW 45000 lb GVW, 79000 lb GCW
Make Cummins (Detroit Diesel optional)
Model NH-180 (NT-335 optional, and in show truck
Fuel diesel
Cooling water
Cylinders 6 (V6 or V8 2-cycle optional)
Displacement ci / L 672 ci (743 or 855 ci optional, 855 in show truck)
Power HP @ rpm 180 @ 2100 (335 @ 2100 optional and in show truck)
Gearbox make (model) Fuller 5W74
Gears (forward speeds) 5 (4, 8, 10, 12, 15, 16, 20 optional, 5-speed x optional 4-speed auxiliary in show truck)
Axles & drive
Wheels/drive 6x4
Rear Axle Make (Model) Eaton dual-drive tandem (Timken optional, 2-speed tandem optional)
Tires standard/optional 10.00-20 12-ply dual rear / 11.00-22 14-ply dual rear (11R22.5 on show truck)
Shipping weight 13600 lb
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In 1957 the DCOF-405 high tilt cab 6x4 tractor replaced the International DCF-405 non-tilting COE. The new cab was based on the Diamond T cab of the CO-180 to CO-220 series, but mounted much higher to clear big-bore diesel engines and the required big radiator. The DCOF-405 used big 743 ci Cummins engines ranging from the 165-hp HRB-600 to the 335-hp turbocharged NRTO-6B. In 1958 the 180-hp 672ci NH-180 was made standard. In 1959 the DCOF-405 was restyled slightly with new dual headlights (reverting to singles later). In mid-1961 it gained several new engine choices. Cummins replaced the 335-hp 743 ci NRTO-6 with the 335-hp 855 ci NT-335.At the same time 2-cycle Detroit Diesels were made available in the series: the 218-hp 6-cylinder 6-71N, the 218-hp V6 6V-71N, and the 290-hp V8 8V-71N. Also newly available were two International-built engines, the 250-hp naturally-aspirated D-817 and the 375-hp turbocharged DT-817. In addition to the dual-drive DCOF-405 International made the trailing-axle tandem DCOT-405 and the lightweight versions DCOF-405L, with Cummins mid-range diesel, and VCOF-405L with International V8 gasoline engines.

See also

References / sources

  • Crismon, Frederick W. (1995). International Trucks. Motorbooks International, Osceola, Wisconsin.
  • Mroz, Albert (1996). The Illustrated Encyclopedia of American Trucks and Commercial Vehicles. Krause Publications, Iola, Wisconsin.

External links