1999-2003 Dodge Ram 2500 Truck Daytime Running Light Module (DRL)

This part replaces:

  • Dorman 704-305
  • OE # 56021561AC

  • New

This replacement daytime running lamp module (DRL) or circuit board is just what you need to get your Jeep in good working order again!

It controls the following functions:

  • Headlamp switch output
  • Brake warning indicator lamp output
  • Daytime running lamp relay output coil (DRL)
  • Park brake switch signal

For most models, the DRL is a black case that is connected to the main body wiring harness in the engine compartment near the firewall. If this part burns out, the vehicle will loose many lighting functions including the daytime running lights. If your lights are not working properly and it is found to be the DRL, this is the part for you! Many lighting electrical problems are because of this daytime running lamp module malfunctioning.


  • Replaces dealer part number: 56021-561AC, 56021561AC
  • Direct replacement
  • Built to strict quality control standards
  • Mounts in engine compartment as indicated above

This daytime running lamp module makes a great replacement and could help solve many electrical lighting problems!

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

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Vehicle Fit

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  • 1999-2003 Dodge Ram 1500 Truck Daytime Running Light Module (DRL)
  • 1999-2003 Dodge Ram 2500 Truck Daytime Running Light Module (DRL)
  • 1999-2003 Dodge Ram 3500 Truck Daytime Running Light Module (DRL)
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List: $111.00 Save: $40.05
Part #: 1AZMX00121

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"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
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