28 Vehicles
12278 Bulb Fitment Guide
The 12278 bulb family is used by 28 vehicles from 3 makes. Commonly found in Fog Light positions.
Positions
1
Fog LightVehicles
28
Makes
3
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Top Compatible Vehicles
Showing 9 high-volume model groups across 3 makes. This bulb appears in 9 model groups overall.
For exact fitment, search your year, make, and model or choose a specific vehicle page. Full compatibility is still represented in the page totals above.
Frequently Asked Questions
The 12278 bulb family is listed for 28 vehicles from 3 makes including Chevrolet, GMC, Toyota. Browse the compatibility list below and verify your exact vehicle before buying.
LED replacements are available for many 12278 applications, but beam pattern, physical clearance, electronics, and legal use can vary by housing. Check seller fitment notes and verify the existing bulb first.
The 12278 bulb family appears in these positions in our database: Fog Light. The exact position depends on year, make, model, and lighting package.
Cost depends on brand, technology, and whether you are buying a halogen replacement or LED conversion. Compare products that list the exact 12278 bulb family and your vehicle fitment.
12278 products share the same bulb family designation, but output, technology, heat behavior, and beam pattern vary. Choose a product that matches your housing and intended use.
Related Bulb Types
These bulb families are linked because they share aliases, common lighting positions, or similar vehicle coverage in the database.