I have recently purchased a 2008 Damon Daybreak 3578 and the 4 front marker lights are all in need of replacement one started leaking. I think that they are one of these two model lights Peterson Manufacturing V132A Amber Rectangular Side Marker Light or Bargman 34-68-511#68 Series Amber Side Marker Light. Pictures can be found here.
https://1drv.ms/f/s!AkLZpDid1n3Jg6AxUYwpXP8BmzKTrw
The prior owner made a mess of the installation with what looks like clear silicone sealant I was thinking about cleaning all of that out and using butyl between the body and the light housing leaving the gasket out. But I need to figure out which light this should be first so I can order replacements.