Honda Pilot Map Light Bulb Size

Additional Notes

• The DE3175 is an ANSI-standard festoon bulb with a 31mm length and end-cap contacts, rated at 12V. It serves as the map light bulb in the Honda Pilot across the 2005-2015 model years, with the exception of 2007, making it the most frequently specified bulb type across the Pilot's map light history.
• The 12961 is a Philips-designated miniature wedge bulb in the T10 form factor, using a W2.1x9.5d base and rated at 12V, 5W. It is specified for the Honda Pilot in 2003-2004, 2007, and 2021, as well as for 2016-2020 models equipped with halogen capsule headlamps.
• The H8 is an ECE-standard single-filament halogen bulb with a PGJ19-1 base, rated at 12V and 35W. It is specified for the 2023-2024 Pilot map light position, representing a notably higher wattage than the other bulb types used across the model's history.
• The 2016-2020 Honda Pilot map light fitment of the 12961 bulb is conditional, applying specifically to vehicles equipped with halogen capsule headlamps. This trim-level dependency means not all examples from those years share the same map light bulb specification.
• The festoon DE3175 and the wedge-style 12961 are not interchangeable despite both operating at 12V. They differ in base type, physical form, and contact configuration, with the festoon relying on end-cap contacts and the wedge using a W2.1x9.5d socket.
• The H8 bulb carries both ECE approval for European and worldwide markets and US approval, reflecting its dual-market certification. Its PGJ19-1 base is specific to the H8 type and is not shared by the DE3175 or 12961 bulbs used in earlier Pilot model years.
• The 2006 and 2007 Pilot model years use different map light bulb sizes despite being consecutive. The 2006 model takes the DE3175 festoon bulb, while the 2007 model takes the 12961 wedge bulb, indicating a mid-generation fitment change that makes year-specific verification necessary for those models.