Dorman 904-356 Engine Air Intake Heater Relay

Brand Dorman 904-356
Amperage Rating 95
Connector Gender Male and Female
Connector Shape Straight
Cover Material Plastic
Mounting Type Bolt On
Package Contents Intake Manifold Heater Relay
Terminal Gender Male
Terminal Type 4
Weather Resistant 12V
Wire Gauge Measurement 2.8
Fits Dodge · 6 vehicles

OE-style replacement. Matches the original relay's fit and function for straightforward service.

Bolt-on installation. Straight connector and male-female terminals simplify replacement.

Durable construction. Plastic cover and weather-resistant design help support reliable performance.

Cross-references Standard Ignition RY-1552, 68188370AA and R7057 for the same application. See all 3.

$44.73Free shipping
In stock · usually ships same day before 1pm CST
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Engine Air Intake Heater Relay for Ram HD

This Dorman engine air intake heater relay is built for 2003-2005 Dodge Ram 2500 and Ram 3500 applications that use a 12V intake manifold heater circuit. It is engineered to match the original relay’s fit and function, with a bolt-on design and durable plastic cover for dependable service.

  • Direct replacement for the original engine air intake heater relay
  • Fits 2003-2005 Dodge Ram 2500 and 2003-2005 Dodge Ram 3500
  • 95 amp rating for intake heater circuit operation
  • Straight connector shape with male and female connector genders
  • 4-terminal design with male terminals
  • Bolt-on mounting for OE-style installation
  • Weather-resistant 12V relay construction

OE-Style Replacement Details

Dorman Part Number 904-356 is designed for the engine air intake heater system used on Dodge Ram HD diesel applications. It cross-references Standard Ignition RY-1552 for the same application. If you are searching for a 2003-2005 Dodge Ram 2500 engine air intake heater relay or a 2003-2005 Dodge Ram 3500 intake manifold heater relay, this relay matches the original fit and function requirements while supporting reliable electrical performance.

Common Issues This Relay Can Address

  • No power to the intake air heater circuit
  • Hard starting in cold weather related to heater relay failure
  • Intermittent heater operation
  • Burned, corroded, or heat-damaged relay connections
  • Relay replacement after electrical wear or contact failure

Installation Notes

Verify connector shape, terminal layout, amperage rating, and mounting style before installation. This relay uses a bolt-on mount and a straight connector configuration, so confirm the original part matches those details on your vehicle. Always inspect the surrounding wiring, terminals, and heater circuit components for heat damage or corrosion before installing the replacement relay.

Quality Assurance

Dorman designs this relay to match the original relay’s fit and function on specified vehicles and builds it for durable, reliable performance. Part Number 904-356 is a direct-fit replacement for the listed Dodge Ram HD applications.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2005DodgeRam 25005.9LL6DIESELN/A
2005DodgeRam 35005.9LL6DIESELN/A
2004DodgeRam 25005.9LL6DIESELN/A
2004DodgeRam 35005.9LL6DIESELN/A
2003DodgeRam 25005.9LL6DIESELN/A
2003DodgeRam 35005.9LL6DIESELN/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — RY-155268188370AAR7057