Toyota Supra Instrument Panel Bulb Size

Additional Notes

• The Toyota Supra uses the 194 bulb size for its instrument panel across all listed model years from 1987-1998.
• The 194 is a T10 miniature wedge bulb, a form factor defined by its wedge-shaped base, which allows it to be inserted and held in place without a separate socket or locking mechanism.
• The 194 bulb operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of instrument panel illumination applications.
• The 194 designation follows ANSI standardization, meaning the bulb specification is recognized across the United States and Canada under a common industry classification.
• Because the 194 is an ANSI-standardized type, it is produced by multiple manufacturers and is physically interchangeable with other bulbs sharing the T10 wedge base and compatible voltage ratings, provided wattage tolerances are observed.
• The T10 designation refers to the bulb's tubular envelope width, expressed in eighths of an inch, making the envelope approximately 10/8 or 1.25 inches wide at its widest point.
• The consistent use of a single bulb type across the entire 1987-1998 Toyota Supra instrument panel specification indicates no variation in bulb fitment requirements across those model years.