Relay Solenoid Air Inake Heater Grid For Dodge RAM 2500 3500 Cummins Diesel 5.9 NEW PREMIUM QUALITY REPLACEMENTAIR INTAKE HEATER RELAY FOR DODGE RAM 2500 3500 DIESEL ADD Info: The cummins diesel 5.9L 12 valve and 24 valve diesel engines do not use glow plugs during the cold startup process. This 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 during startup to ensure a quick start in cold weather. Warning signs your Dodge 5.9L Cummins Diesel Air Intake Heater Relay needs to be replaced: Longer crank times in cold weather. More frequent crank periods before the engine fires. Increased white smoke during cold starts. A hard to start condition is present during cold weather. The replacement of the Intake Heater Relay or Bracket on the 1998.5 to 2002 Dodge Cummins powered trucks requires only one 68188401AA relay. The Replacement 68188401AA relay succeeds the following part numbers: Replaces: For Chrysler # 68188401AA , 904-308 56026842 Cummins 3924594 Cummins 396998 Fitment: 1994-2002 Dodge Ram 2500 With Diesel Engine 1994-2002 Dodge Ram 3500 With Diesel Engine Please check the part number and compare with pictures provided here before purchasing to ensure proper fitment. Any questions please send us eBay message. Package includes: 1*Relay Solenoid Air Inake Heater Grid