The Allstate is an American automobile offered for sale through Sears, Roebuck and Co. during the 1952 and 1953 model years. It was a rebadged version of the Henry J, a car manufactured by the Kaiser-Frazer company from 1950 through 1954.

The Sears retail chain had previously marketed vehicles made by the Lincoln Motor Car Works under the name "Sears Motor Buggy" between 1908 and 1912.

These horseless carriages were of the "high-wheeler" variety with large wagon-type wheels. Their high ground clearance was well-suited to muddy, wagon-rutted country roads. Customers were accustomed to mail ordering through the Sears catalog, and the Sears Motor Buggy could be delivered to the nearest railroad siding. A wood crate would arrive, and the customer had to install the wheels and add oil to the engine, but Sears deemed the product not profitable at $370 and was dropped from the catalog after 3,500 orders.

The Allstate was the brainchild of Henry J. Kaiser, who saw distribution by Sears as another means to mass-market his slow-selling "Henry J" two-door sedan, introduced in 1950. The independent automakers at the time, such as Kaiser-Frazer, could not compete with the vast dealer networks marketing the cars made by the "Big Four" auto companies at the time. The catalog and retail chain was also interested in working out a deal.

Starting in 1945, Sears executive, Theodore Houser, discussed the idea with Kaiser-Frazer. Allstate automobiles were planned to be built on the senior Kaiser platforms. The concept came together after Kaiser-Frazer developed the affordable Henry J model.

Thus, after three years of negotiations between Kaiser-Frazer and Sears, the production of Allstate was announced on November 20, 1951, by Sears merchandising vice president, Theodore V. Houser, and Kaiser-Frazer administrative vice president, Eugene Trefethen. The three-year delay was also partly due to resistance from existing Kaiser-Frazer dealerships fearing competition with Sears.

The Allstate was essentially a Henry J, but with several differences that included Allstate badges on the hood and rear deck, a more upscale interior of Saran plaid or occasionally leather or smooth vinyl, unique hubcaps/wheel covers, horn buttons and instrument bezels, a locking trunk lid, distinctive engine color (blue), custom armrests and sun visors, revised door locks and keys, and special parking and taillamp assemblies. The cars came finished in Sears-blue paint. Most notably, the Allstate featured a unique two-bar grille and jet-plane hood ornament designed by Alex Tremulis, who had come to Kaiser-Frazer from the Tucker Corporation. Tremulis described it as a "rush job" including the Allstate logo with an outline map of the United States.

The Allstate was built by Kaiser-Frazer in Willow Run, Michigan (and after 1953 by Kaiser-Willys in Toledo, Ohio) and was based on Kaiser's compact Henry J. One body style was offered, a fastback two-door sedan in two trim and equipment levels, Series 4 and Series 6.