31mm LED Bulbs

Typically serving as a map, dome, or trunk light bulb, the 31mm size bulb is easily upgradable in most modern vehicles. Diode Dynamics currently offers plug-and-play LED upgrade bulbs in the 31mm size that drop right into place of stock incandescent bulbs! Our LED replacements are brighter, more reliable, and come in a variety of colors.

Not sure which bulbs you need? Click here for our Vehicle Finder tool!

31mm cross-reference: 3022, 3175 DE3022, 6428, DE3021, 7065, DE3175, DE3022LL, DE3021LL, DE3175LL

31mm stock bulb

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  1. 31mm HP6 LED
    $10.00
  2. 31mm SMF2 LED
    $5.00
  3. 31mm SMF6 LED
    $8.00
  4. LED Board SMD12
    $14.00
  5. FlexLight LED Strip
    $15.00
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