HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsDorman 904-308 Engine Air Intake Heater Relay
Part #: 904-308

Dorman 904-308 Engine Air Intake Heater Relay

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18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Dodge, Ram 2500 and Ram 3500
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Reliable Engine Air Intake Heater Relay for Dodge Ram 2500 and 3500

The Dorman 904-308 Engine Air Intake Heater Relay is designed to provide dependable performance for Dodge Ram 2500 and Ram 3500 trucks. This weather-resistant relay ensures consistent operation of the engine air intake heater system, helping maintain optimal engine function in cold conditions.

  • Weather resistant design for durability in harsh environments
  • 95-amp amperage rating suitable for heavy-duty applications
  • 8 screw terminal/threaded post connections for secure wiring
  • Bolt-on mounting type for straightforward installation
  • Includes one intake heater relay per package

Durable and Efficient Relay for Engine Air Intake Systems

The Dorman 904-308 relay is engineered to meet the specific requirements of the fuel injection system and related components in Dodge Ram 2500 and Ram 3500 models. Its 8-terminal configuration with screw terminals and threaded posts ensures a reliable electrical connection, minimizing the risk of loose contacts. The bolt-on mounting type simplifies installation and replacement, while the weather-resistant construction protects the relay from moisture and environmental damage, extending its service life.

Compatible Applications and Common Issues Addressed

This engine air intake heater relay is compatible with Dodge Ram 2500 and Ram 3500 trucks, providing a direct replacement for the original part. It is commonly used to resolve issues such as:

  • Intermittent or no operation of the engine air intake heater
  • Failure to maintain proper engine temperature in cold weather
  • Electrical connection problems due to worn or corroded terminals
  • Relay overheating or failure under heavy electrical load
  • Difficulty starting the engine in low-temperature conditions

Installation Notes and Tips

When installing the Dorman 904-308 Engine Air Intake Heater Relay, ensure the vehicle is turned off and the battery is disconnected to prevent electrical shock. The bolt-on mounting type allows for easy replacement using standard hand tools. Verify that all 8 terminals are securely connected using the screw terminal/threaded post design to maintain proper electrical contact. Inspect wiring for any signs of wear or corrosion before installation to ensure optimal performance.

Quality Assurance and Warranty Information

Dorman manufactures the 904-308 relay to meet or exceed OEM specifications for durability and performance. The weather-resistant design adds an extra layer of protection against environmental factors. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use conditions.

BrandDorman
Part Number904-308
Amperage Rating95
Mounting TypeBolt On
Package Contents1 Intake Heater Relay
Terminal Quantity8
Terminal TypeScrew Term/Threaded Post
Weather ResistantYes

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2002DodgeRam 25005.9LL6DIESELN/A
2002DodgeRam 35005.9LL6DIESELN/A
2001DodgeRam 25005.9LL6DIESELN/A
2001DodgeRam 35005.9LL6DIESELN/A
2000DodgeRam 25005.9LL6DIESELN/A
2000DodgeRam 35005.9LL6DIESELN/A
1999DodgeRam 25005.9LL6DIESELN/A
1999DodgeRam 35005.9LL6DIESELN/A
1998DodgeRam 25005.9LL6DIESELN/A
1998DodgeRam 35005.9LL6DIESELN/A
1997DodgeRam 25005.9LL6DIESELN/A
1997DodgeRam 35005.9LL6DIESELN/A
1996DodgeRam 25005.9LL6DIESELN/A
1996DodgeRam 35005.9LL6DIESELN/A
1995DodgeRam 25005.9LL6DIESELN/A
1995DodgeRam 35005.9LL6DIESELN/A
1994DodgeRam 25005.9LL6DIESELN/A
1994DodgeRam 35005.9LL6DIESELN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

56026842R4811RY-441

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.