Toyota Yaris Fog Light Bulb Size

Additional Notes

• The Toyota Yaris front fog light specifications reference two bulb types across the listed model years: H11 and H16. Both are single-filament halogen bulbs operating on a 12V system and both fall under the ECE standard, which applies across Europe and worldwide markets.
• The H11 bulb draws 55W, while the H16 draws only 19W. Despite their similar physical appearance and shared ECE classification, these two bulbs are not interchangeable due to their different base types and power ratings.
• The H11 uses a PGJ19-2 base, whereas the H16 uses a PGJ19-3 base. The numeric suffix difference in these base designations reflects a physical incompatibility, meaning one cannot be seated in a socket designed for the other.
• The Toyota Yaris (2013 and 2019) takes the H11 bulb for the front fog light position. The H11 carries dual approval under both ECE and US regulations, making it suitable for vehicles sold in North American markets.
• The 2014 and 2018 Yaris front fog light positions use the H16 bulb. At 19W, the H16 operates at significantly lower wattage than the H11, which affects the thermal load placed on the socket and surrounding housing.
• The alternating fitment between H11 and H16 across the listed Yaris model years means that year-specific verification is necessary before sourcing a replacement fog light bulb, as the same vehicle nameplate does not carry a single consistent fog light bulb type throughout the listed period.