3 Vehicles
3156K or 921 Bulb Fitment Guide
The 3156K or 921 bulb is used by 3 vehicles from 1 makes. Commonly found in Reverse Light positions.
Positions
1
Reverse LightVehicles
3
Makes
1
Compatible Vehicles
| Model | Years | Positions | View |
|---|---|---|---|
| Explorer Sport Trac | 2008–2010 | Reverse Light | Details |
Frequently Asked Questions
The 3156K or 921 bulb is used by 3 vehicles from 1 makes including Ford. Browse the full compatibility list below.
Yes, LED replacements are available for the 3156K or 921 bulb size. LED 3156K or 921 bulbs offer brighter output, longer lifespan, and lower power consumption compared to halogen.
The 3156K or 921 bulb is commonly used in these positions: Reverse Light. The exact position depends on your vehicle's make and model.
Standard halogen 3156K or 921 bulbs typically cost $10–$30 for a pair. LED 3156K or 921 conversion kits range from $25–$60. Premium brands may cost more but often offer better performance and warranty.
All 3156K or 921 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.