Review on Dorman 639-010 Multi Purpose Light Bulb, 5 Pack: Superior Quality and Versatility by Phil Prater

I recommend these as a replacement for traditional PC37 bulbs. My dashboard uses PC37 bulbs. About five years ago my original factory dash bulbs started to burn out so I replaced them with PC37 bulbs from a reputable bulb manufacturer. But these "new bulbs" weren't nearly as bright as the factory bulbs, making it very difficult to read the speedometer, tach, oil pressure, radiator temp, etc. at night. I finally found these Dorman 639 010 bulbs on AMAZON and I have replaced all my old PC37 bulbs with new Dorman 639-010 bulbs and now my ENTIRE INSTRUMENT PANEL lights up like new. I needed 6 of these bulbs for my dash, and remember (!) there are only five in a pack - so you may have to buy two packs!