Honda CRX Instrument Panel Bulb Size

The Honda CRX instrument panel uses bulb size 158 and bulb size 74 for the internal illumination components. Data for the specific bulb sizes covers the range from 1988 to 1991.

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
1990-1991	158
1988-1989	74

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3W.	158
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1.4W.	74

Other Locations

Additional Notes

The Honda CRX instrument panel uses two distinct bulb sizes across its model years: the 158 and the 74, both of which are ANSI-standardized miniature wedge bulbs rated for 12-volt electrical systems.
The 158 bulb follows the T10 wedge form factor and draws 3 watts, making it the higher-output of the two types found in these specifications.
The 74 bulb follows the T5 wedge form factor and draws 1.4 watts, placing it in a physically smaller and lower-wattage category than the 158.
The T10 and T5 designations refer to the bulb's tubular body width, measured in units of one-eighth of an inch, meaning the T10 body is 10 eighths (approximately 32mm long) and the T5 is narrower, and the two are not interchangeable due to differences in both physical size and socket fitment.
The Honda CRX (1990-1991) uses the 158 bulb for the instrument panel, while the 1988-1989 model years use the 74 bulb instead.
The change in bulb specification between the 1989 and 1990 model years reflects a shift from the T5 to the T10 socket type, meaning components from these two generations are not cross-compatible for this application.
Both bulb types carry ANSI standardization for the US and Canadian markets, indicating that replacement bulbs conforming to those ANSI designations are the appropriate substitutes within those regions.