Volvo 164 Dome Light Bulb Size

The Volvo 164 dome light utilizes DE3423 and 211-2 bulb sizes for interior illumination across various production versions. Data for the specified lighting components covers the period from 1969 to 1975.

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 Size
1972-1975	DE3423
1969-1971	211-2

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2

Other Locations

Additional Notes

The Volvo 164 dome light specifications cover model years 1969-1975 and reference two bulb types: the DE3423 and the 211-2.
Both the DE3423 and the 211-2 are ANSI-standard festoon bulbs rated at 12V, sharing a 41mm length.
A festoon bulb is a cylindrical lamp that mounts horizontally between two spring-clip contacts at either end of a housing, a format common in interior dome lighting applications.
The 211-2 carries an explicit 12W power rating and uses an SV8.5 base, which refers to a smooth-ended cap style where the contact is made through the flat metal ends of the bulb.
The DE3423 uses end-cap contacts rather than the SV8.5 base designation, indicating a structural difference in how the bulb seats and makes electrical contact within the fixture.
The Volvo 164 (1969-1971) takes the 211-2 bulb, while the 1972-1975 model years require the DE3423.
Although both bulbs share the same 41mm length and 12V rating, the differing base types mean they are not interchangeable without confirming fixture socket compatibility.