Chevrolet Corvair Automatic Transmission Indicator Bulb Size

Additional Notes

• The Chevrolet Corvair uses two different bulb sizes for the automatic transmission indicator across its production run: the 1445 for 1965-1969 models and the 53 for 1960-1964 models.
• Both the 1445 and the 53 are ANSI-standardized bulbs recognized in the United States and Canada, meaning either type conforms to a defined set of electrical and physical standards rather than being a proprietary specification.
• Each bulb type is single-filament, which is typical for indicator and position lighting applications where only a steady, non-switching light output is required.
• Both the 1445 and the 53 share the BA9s base type, a miniature bayonet cap with a 9mm body width, commonly found in small instrument panel and indicator applications.
• Both bulbs operate at 12 volts and draw 2 watts, making them electrically identical in terms of system compatibility and power consumption.
• Despite sharing the same voltage rating, wattage, base type, and ANSI classification category, the 1445 and the 53 carry different ANSI designations, which indicates a physical distinction between the two that affects direct interchangeability.
• Because the 1445 and the 53 are not the same part number, a bulb sourced for a 1960-1964 Corvair (Chevrolet Corvair) automatic transmission indicator is not confirmed as a direct fit for a 1965-1969 model, and vice versa.