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Replaces Part Numbers:
for Chrysler # 68188401AA , 904-308, 56026842
for Cummins 3924594
for Cummins 3969987

Fitment:
for 1994-2002 Dodge Ram 2500 With Diesel Engine
for 1994-2002 Dodge Ram 3500 With Diesel Engine

This Air Intake Heater Grid Relay contains two relays and the bracket required for the operation of the Air Intake Heater.

The Cummins 5.9L 12 valve and 24 valve diesel engines do not use glow plugs during the cold startup process.
This Cummins 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.