Duplex D300

In the late 1960s Duplex introduced the R300 custom chassis for fire apparatus. Duplex changed the designator to D300 in 1979.

The D300 was cab forward 2 axle chassis with a TCM 5 man "Cincinnati" contour cab. The chassis was intended to be used for pumpers and similar sized apparatus. Duplex ended production of the D300 chassis in the early 1980s.