400hrs x 70mph(avg. Speed) =28,000mi... That's a good average of miles in a year. I've got 17,000mi. on my '10 in 7 months. And haven't replaced my headlight bulb... Buddy of mine has 30,000 on his '09 and he hasn't replaced the bulb also... So is it worth it??

 

So... At 400hrs a year that LED should last 25 yes.

 

I will get this light, need the power and wont have to get the fog lights. If it fit the FXD I am guessing it should fit the FXDC headlight?

 

Stock headlight bucket on a 09 FXDC. Fit right in. I did use the rubber gasket which I didn't have on the bike from the factory. Going for a test ride tonight. will report the results.

 

I have a 2009 Dyna FXDC. Do you feel this LED replacement will fit into the housing. It is 5 3/4 inch. Many thanks for your advice

 

This link should help you:
https://www.hdforums.com/forum/dyna-...-headlamp.html