Chevrolet Cavalier Dome Light Bulb Size

Additional Notes

• The 906 bulb is the most frequently specified dome light bulb across the Chevrolet Cavalier range, appearing in the 2000-2005 model years as well as 1991.
• The 906 is a T10 miniature wedge bulb rated at 12V and 8W, conforming to ANSI standards applicable in both the United States and Canada.
• The 561 bulb is the second most common type in these specifications, covering the 1983, 1985, 1987-1990, and 1992 model years.
• The 561 is a festoon-type bulb with a 44mm length and end-cap contacts, rated at 12V and 12W under the same ANSI standard framework.
• The 562 bulb shares the same 44mm festoon format, end-cap contact design, 12V supply, and 12W rating as the 561, making the two physically and electrically similar.
• Despite their near-identical specifications, the 561 and 562 carry distinct ANSI designations, and substitution between them warrants verification against the specific model year fitment listed.
• The 562 is specified for the Chevrolet Cavalier in 1982, 1984, and 1986, alternating with 561-equipped years in that period.
• The 168 bulb, specified for 1993-1994, is also a T10 miniature wedge type but is rated at a lower 4.9W compared to the 8W of the 906, meaning the two are not wattage-equivalent despite sharing the same base form factor.
• The T10 wedge base used by both the 906 and 168 bulbs is a push-fit design that does not use end-cap contacts, distinguishing it from the festoon types used in earlier model years.
• The shift from festoon-type bulbs in the 1980s to wedge-base T10 types in later years reflects a change in socket design across different Cavalier generations.