Ram ProMaster Luggage Compartment Bulb Size

The Ram ProMaster luggage compartment requires a DE3423 bulb size for this vehicle model. The replacement chart covers 2014 through 2018 production years with corresponding bulb specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Type	Shop
2014-2018	DE3423	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423	Check Price

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Additional Notes

The Ram ProMaster uses the DE3423 bulb for its luggage compartment across the 2014-2018 model years.
The DE3423 is an ANSI-standardized bulb type, meaning it conforms to a defined specification recognized across the United States and Canada.
The DE3423 is a festoon-style bulb, a form factor characterized by a cylindrical body that seats between two spring-clip or end-cap contacts rather than using a bayonet or wedge base.
The bulb operates at 12 volts, which is consistent with standard automotive electrical systems.
The 41mm length of the DE3423 is a critical fitment factor, as festoon bulbs must match the contact spacing of the housing to seat correctly and maintain a reliable circuit.
The consistent use of the DE3423 across all five listed model years indicates that the luggage compartment housing design remained unchanged throughout that period, making the bulb directly interchangeable across those years.