Chevrolet Chevelle Clock Light Bulb Size

Additional Notes

• The 1895 bulb is the most frequently specified clock light across the Chevrolet Chevelle lineup, appearing in the 1964-1968 and 1966-1970 model years, as well as one of two listed options for 1969.
• Both the 1893 and 1895 bulbs share the same T5 miniature wedge form factor and operate on a 12-volt circuit, which places them in the same physical housing category despite differing wattage ratings.
• The 1893 bulb draws 2 watts, while the 1895 draws 0.9 watts, meaning the two bulbs produce noticeably different light output levels even though they share the same base type.
• Both bulbs conform to ANSI standards recognized in the United States and Canada, classifying them as standardized replacements within the North American market.
• The 1969 Chevrolet Chevelle lists both the 1893 and 1895 as valid clock light bulb sizes, indicating that two different configurations were used within that single model year.
• The 1971 model year specifies only the 1893 bulb, which carries the higher 2-watt rating, distinguishing it from the lower-wattage 1895 used in most surrounding years.
• Although the 1893 and 1895 share a T5 wedge base and are physically interchangeable in terms of fitment, substituting one for the other results in a different wattage draw, which may affect clock illumination brightness.