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29 Vehicles

578 or 912 Bulb Fitment Guide

The 578 or 912 bulb is used by 29 vehicles from 1 makes. Commonly found in Map Light, Dome Light positions.

Positions

2

Map Light, Dome Light

Vehicles

29

Makes

1

Compatible Vehicles

ModelYearsPositionsView
Aerostar19971997Map LightDetails
F-15019992003Dome LightDetails
F-25020002004Dome LightDetails
F-35019992004Dome LightDetails
F-450 Super Duty20012004Dome LightDetails
F-55020042004Dome LightDetails
F250 Super Duty20002004Dome LightDetails
F55020012003Dome LightDetails

Frequently Asked Questions

The 578 or 912 bulb is used by 29 vehicles from 1 makes including Ford. Browse the full compatibility list below.

Yes, LED replacements are available for the 578 or 912 bulb size. LED 578 or 912 bulbs offer brighter output, longer lifespan, and lower power consumption compared to halogen.

The 578 or 912 bulb is commonly used in these positions: Map Light, Dome Light. The exact position depends on your vehicle's make and model.

Standard halogen 578 or 912 bulbs typically cost $10–$30 for a pair. LED 578 or 912 conversion kits range from $25–$60. Premium brands may cost more but often offer better performance and warranty.

All 578 or 912 bulbs share the same base and fitment, but they vary in technology (halogen, LED, HID), brightness, color temperature, and brand quality. We recommend LED for the best balance of brightness and lifespan.