This is the radiator fan resistor that does the lower speeds of your radiator fan. The Eurovan requires two of these. If one of your fans isn't seeing all of the speeds, then you should replace at least that one resistor.
Fog Light Bulb
Upper Radiator Hose for 93-95 2.5l Eurovan Automatic
Taillight Bulb for a 92-96 Eurovan