HD light bulb part number conversion?

Discussion in 'Softail Models' started by Papi, Nov 28, 2010.

  1. Papi

    Papi New Member

    I have a 2004 Fatboy and I was wondering what bulb PN's IE sylvania etc..
    So I can buy at my local auto parts store. I eventually want to swap to LED so I need to know the generic PN's
  2. Jack Klarich

    Jack Klarich Guest

    What bulbs? Single contacts should be 1156, double contacts would be 1157
  3. HarryB737

    HarryB737 Junior Member

    As Jack said which bulbs are you interested in ? If you take the H-D pn's to sylvania's web site some bulbs they'll cross reference for you. Don't know about your '04 FB but my Heritage headlight is a H-4. If you go with LED's for signals & running lights you may have to add an equalizer which adds load, for the flasher to work properly. Try it first.