Truck, IH R190

History: The International R series was a truck manufactured by International Harvester. It replaced the L series in 1953. It was mostly a facelift of the light and medium models. The front style seen on the L series redesigned for the R line. A simple rectangular opening with a tapered bar running across the center replaced the ornate grill design of the L series, and the IH "man on a tractor" logo was placed in the center. The heavy duty models (R-185 and higher) were changed only slightly in appearance, in that four of the seven vertical bars in the upper grille were removed. There were few mechanical changes in the R line, other than facelifts. There were twenty-nine engines available. Both Cummins and Buda Diesels were now offered in the RD-190 and RD-200 Series, whereas only Cummins had been available, and even then only in models larger than the 190/200 Series.

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Railroad/Company: The International Harvester Company (abbreviated first IHC and later IH) was a United States manufacturer of agricultural machinery, construction equipment, trucks, and household and commercial products. Its reorganized successor, after spin-off of several of those businesses, is Navistar International. In 1902, J.P. Morgan merged the McCormick Harvesting Machine Company and Deering Harvester Company, along with three smaller agricultural equipment firms, to form International Harvester. In 1985, International Harvester sold off most of its agricultural division to Tenneco, Inc., which merged it into its subsidiary J.I. Case under the Case IH brand. Following the terms of IH's agreement with Tenneco, the remainder of International Harvester (primarily heavy trucks) became Navistar International Corporation in 1986.

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