International Harvester Pickup History: From Auto Wagon Roots to the 1975 Light Line

Reviewed and updated by Classic Car America · Editorially reviewed · Reviewed October 7, 2026

International Harvester's light-truck history reaches back to the company's experimental Auto Buggy work in 1907, but calling the 1907 vehicle a modern “pickup” oversimplifies the chronology. By the 1930s International was unquestionably selling pickup-bodied trucks, and its light-duty line later included L-, R-, A/B-, C/D- and 1969–1975 Light Line pickups, along with the pioneering Travelette crew cab. [1] [2] [3]

1907 roots: Auto Buggy, not yet the later pickup line

The Wisconsin Historical Society's International Harvester corporate archive includes an experimental International Auto Buggy photograph received by the company's Experimental Department in June 1907. That establishes very early motor-vehicle activity at International Harvester. It does not justify saying that the familiar IH pickup line began in 1907. The Auto Buggy belongs to the company's pre-pickup motor-vehicle roots; later truck families developed from there. [1]

By the 1930s: recognizable International pickups are documented

A 1937 International Harvester corporate photograph preserved by the Wisconsin Historical Society explicitly identifies an International pickup truck used on a poultry, egg and cream route in Indiana. This is a firmer point for discussing an actual pickup body than the 1907 Auto Buggy. [2]

1949–1950: L-Line and the Comfo-Vision cab

International introduced the L-Line around 1949. Its own advertising promoted the trucks as a broad family for hauling work and highlighted the “Comfo-Vision” cab with a one-piece curved “Sweepsight” windshield. A separate 1950 International Harvester photograph identifies an L-120 pickup being used to haul milk cans, confirming that pickup-bodied light trucks were part of the L-Line program. [3] [4]

1953: R-Line light trucks continue the pickup branch

International's R-Line followed in the early 1950s. Corporate archive photographs show an R-110 with a pickup body in 1952–1953, including trucks used in rural service and company proving-ground testing. That evidence is useful because International's “R-Line” name also covered much heavier commercial trucks; the pickup variants should be separated from the medium- and heavy-duty members of the broader truck family. [5]

1957–1961: Travelette changes the pickup cab

International introduced the Travelette in 1957 as a factory-built multi-passenger pickup with two rows of seating. The early truck used three side doors; a four-door version followed with the redesigned C-Line in 1961. This made International one of the earliest U.S. manufacturers to offer a factory crew-cab pickup years before crew cabs became common in the domestic truck market. [6] [7]

International Harvester's own archive shows Travelette pickups in regular advertising use through the 1960s and into the 1970s. A 1975 corporate photograph identifies a four-door, six-passenger Travelette as part of that year's recreational-vehicle lineup. [8]

1961 C-Line: independent front suspension and Bonus Load

The 1961 C-Line was more than a front-end restyle. International's sales literature advertised the new light-duty trucks with independent front-wheel suspension, and period descriptions of the original brochure identify a new chassis and torsion-bar independent front suspension. The C-Line also offered the straight-sided “Bonus Load” pickup box alongside more traditional pickup bodies. [7] [9]

This is also where the old overview needs a category correction: the Loadstar, introduced in the early 1960s, was a medium-duty truck line. It shared some corporate and cab-development history with International's lighter trucks, but it should not be presented as a light-duty pickup model alongside C-Series pickups or the Travelette.

1963–1968: gasoline engines—and a very rare diesel exception

International light-duty pickups of the 1960s used both inline-six and V8 gasoline engines. A small number of C/D-Series light trucks could also be special-ordered with International's D301 diesel between 1963 and 1968. Because those diesels were rare and were not a mainstream pickup offering, the history is more accurate when diesel is treated as an unusual special-order exception rather than a defining feature of later IH pickups. [10]

1969–1975: the final full-size Light Line

International redesigned its light-duty pickups for 1969. The final Light Line included conventional pickups, Travelettes and Travelalls in two- and four-wheel-drive configurations. Later trucks used AMC-sourced inline-six power alongside International's 304-, 345- and 392-cubic-inch V8s; the 392 was replaced in the pickup line by AMC's 401 V8 late in the run. [11]

The familiar 1971–1973 model numbers included 1010, 1110, 1210 and 1310 series trucks. The 1010 was the lightest half-ton-class member, while heavier numbers represented progressively higher-duty configurations. International continued to offer straight-sided Bonus Load beds, conventional beds and Travelette crew cabs. [12]

The 1973 1010 was not International's last full-size pickup

The site's related 1973 Model 1010 Bonus Load article previously described that truck as International Harvester's “last full-size pickup before exiting the consumer truck market.” That is inaccurate. International still advertised 1975 model 150 pickups, Camper Special pickups and Travelette pickups; the Wisconsin Historical Society preserves International Harvester's own corporate photograph documenting those 1975 vehicles. [8]

The full-size Light Line did end during 1975. MotorTrend's historical review places the final Light Line truck on April 28, 1975. But even that was not the end of every International consumer pickup: the Scout II survived, and International introduced the longer-wheelbase Scout II Terra pickup for 1976. Scout-derived pickups continued until the Scout line ended in 1980. [13] [14]

Collector research: use the line-setting ticket

International Harvester identification can become complicated because model numbers, series names, GVW classes, engines, axles and body configurations changed repeatedly. The Wisconsin Historical Society's McCormick-International Harvester Collection retains factory line-setting tickets for most IH trucks built between 1957 and 1983. Those factory build records can list engine, transmission, paint codes and standard or optional equipment and are especially valuable when checking whether a truck remains in its original configuration. [15]

For a prospective purchase, begin with the exact model year and model designation, then compare the VIN/data plate and line-setting ticket with the engine, transmission, axle, cab and bed actually present. On modified trucks, separate later upgrades from factory equipment. This overview is historical guidance, not an authentication certificate or appraisal. See the Classic Car America editorial policy and Inspection Planner.

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