the 1990 Cadillac Brougham and 1990 full size GM station wagons with the Olds 307 engine. RPD was a pioneer in fuel injection systems in road cars in the 1980s. In addition to carburetors, Rochester also made various emissions control equipment such as charcoal canisters and EGR valves, which found use in GM vehicles as well as those from other makes. Other products made at this plant were locks and keys as well as steel tubing for both vehicular and non-vehicular applications. The last major carburetor design by Rochester was the Varajet II, essentially a Quadrajet halved lengthwise, and was one of the few successful progressive 2-barrel carburetors. It was installed on 4- and 6-cylinder engines from 1979 to 1986. In 1981, Rochester Products and Diesel Equipment Division merged in what was publicly described as a cost-cutting move. At this time RPD had about 7,000 employees, and DED had about 3,300 employees. DED had plants in Grand Rapids, Michigan. The headquarters remained in Rochester. In 1988, the diesel fuel injection business was sold to Penske Transportation, and Rochester Products and AC Spark Plug merged. In 1994, the Grand Rapids operations of AC Rochester were spun off. See also Delco Electronics Detroit Diesel Harrison Radiator Corporation Holley Performance Products, a competitor Remy International, Inc. (formerly Delco Remy) References Auto parts suppliers of the United States Manufacturing companies based in Rochester, New York Manufacturing companies established in 1908 1908 establishments in New York (state) General Motors factories Carburetor manufacturers