Duplex D500R Vanguard

In 1992 Simon Duplex introduced the D500R a 3 axle version of the D500 Vanguard chassis. It came standard with a 4 door enclosed 6 man aluminum cab, an available option provided seating for up to 10 firefighters. The D500R maintained the split cab, which allowed the forward section to tilt providing access to the engine. The rear section remained fixed to the chassis.

The D500R was intended for aerial ladder trucks and other large apparatus. The chassis was available until the late 1990s.