Dlevin 3 #1 Posted February 23 I have a 520 HC. I'm looking for a bulb number for the instrument lights, Also, an aftermarket for the seat prop. The ones I have on the tractors have no number on them. Thanks. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,194 #2 Posted February 23 Some numbers here may help. Not listed for your model but still applies. Click on the fuzzy picture in the link to read about it and again on the thumb nail that comes up. Two generic bulb numbers are listed. 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,194 #3 Posted February 24 One may get away with using a LED equivalent for the hotter bulb if it generates less heat as most do. Share this post Link to post Share on other sites