Dodge Colt Dome Light Bulb Size

The Dodge Colt dome light requires bulb size 1895 or DE3175 depending on the specific application for the interior lighting system. Data for the bulb sizes covers the range from 1971 to 1978.

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
1978	DE3175
1971-1973	1895

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 0.9W.	1895

Other Locations

Additional Notes

The Dodge Colt dome light specifications cover model years 1971-1973 and 1978, with two distinct bulb types used across these years.
The DE3175 is a festoon-type bulb measuring 31mm in length with end-cap contacts, operating at 12 volts. Festoon bulbs make electrical contact at both ends of the tube rather than through a base socket.
The 1895 is a miniature wedge bulb in the T5 form factor, rated at 12 volts and 0.9 watts. Wedge bulbs use a pinched glass base that grips directly into the socket without a separate metal base.
The Dodge Colt (1978) uses the DE3175 festoon bulb for the dome light, while the 1971-1973 model years use the 1895 wedge bulb.
The DE3175 and 1895 are not interchangeable. Their contact types differ fundamentally, as the festoon end-cap design and the wedge base require entirely different socket configurations.
Both the DE3175 and 1895 conform to ANSI standards applicable in the United States and Canada, indicating standardized electrical and physical tolerances for each type.
The 1895 bulb's 0.9W rating places it among the lower-wattage miniature bulbs, consistent with interior dome light applications where heat output and power draw are kept minimal.
The T5 designation on the 1895 refers to a tubular glass envelope with a width of 5/8 inch, a common form factor in low-wattage automotive interior lighting.