Honda Ridgeline Courtesy Bulb Size

The Honda Ridgeline utilizes a 194 bulb for the courtesy light location according to the provided technical specifications. Data for the bulb application spans from 2006 through 2020.

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
2018-2020	194
2006-2014	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Honda Ridgeline uses the 194 bulb for its courtesy lighting across the 2006-2014 and 2018-2020 model years.
The 194 is a miniature wedge-base bulb in the T10 form factor, operating at 12 volts with a power draw of 3.78 watts.
The T10 wedge base is a push-in terminal design that requires no separate socket locking mechanism, relying instead on the tension of the wedge-shaped base within the housing.
The 194 bulb follows the ANSI standard, meaning its electrical and physical specifications are standardized for both the United States and Canadian markets.
At 3.78 watts, the 194 is a low-wattage bulb, consistent with interior courtesy lighting applications where prolonged use and heat management are relevant factors.
The T10 designation refers to the bulb's tubular envelope size, where the number 10 represents a width of ten-eighths of an inch.
Because the 194 is an ANSI-standardized type, aftermarket and OEM-equivalent replacements from various manufacturers are generally interchangeable as long as the T10 wedge base and 12V/3.78W ratings are matched.