Toyota Sequoia Courtesy Bulb Size

Additional Notes

• The bulb type 168 is the most frequently specified courtesy bulb across the Toyota Sequoia lineup, covering model years 2008-2021 with one conditional exception in 2019.
• The 168 is an ANSI-standard miniature wedge bulb in the T10 form factor, rated at 12V and 4.9W, and shares its physical base type with both the 194 and the Philips 12961.
• The 194 is also a T10 miniature wedge bulb operating at 12V but draws only 3.78W, making it the lowest-wattage courtesy bulb specified across the Sequoia range.
• Although the 168 and 194 share the same T10 wedge form factor and base type, their wattage ratings differ, and substituting one for the other may not satisfy the original equipment specification.
• The 2022 Toyota Sequoia specifies the Philips 12961, a T10 miniature wedge bulb with a W2.1x9.5d base rated at 12V and 5W, which is a manufacturer-specific part number rather than an ANSI standard designation.
• The 6428 is a festoon-type bulb with an SV8.5 base and a 36mm length, rated at 12V and 5W, representing a physically distinct fitment from the T10 wedge bulbs used in all other Sequoia model years.
• The 2003-2004 model years are the only ones specifying the 6428 festoon bulb, meaning those vehicles require a different socket type than any other year in the Sequoia courtesy light application.
• The 2019 specification for bulb size 168 carries the qualifier "For Vehicle With High Efficiency Twin Cam," indicating that the courtesy bulb fitment for that year is conditional on the engine configuration.