This OEM Mopar 5187880AC Heater Grid Relay Switch is used on the Dodge Ram trucks equipped with the Cummins 5.9L and Cummins 6.7L diesel engines for the control of the air intake heater grid relay. This heater grid relay is what controls the heater grid element for cold start assistance in the Fall thru Early spring when you experience the cold start temperatures. The Dodge Ram trucks do experience failures with this electrical part.
KLM Performance offers this part as a Brand New OEM Mopar heater grid intake relay for the complete repair of your poor start condition.
The Cummins 5.9L and 6.7L diesel engines do not use glow plugs during the cold startup process. The Cummins diesel engine is equipped with a relay that is used to activate the heater grid which is located directly between the air horn and intake manifold. The heater grid heats the incoming air charge during a cold startup to ensure a quick start in cold weather. The replacement of the Intake Heater Relay or Mopar Bracket on the 2006 to 2018 Dodge Cummins requires only one Mopar 5187880AC relay.
This Relay is a genuine OEM Mopar part which is backed by the Mopar replacement parts warranty.