I bought new rocker switches from Rinker for my 342. The switches can be found cheaper at other places but I found it easier to deal with Rinker direct. The switches they sold to me were exact replacements for my switches.
I dealt with Becky Jacobs at Rinker, she has been very helpful the many times I've contacted her. She can be reached at
bjacobs@rinkerboats.com or 574-457-5731 extension 247. I pretty sure the extension number is correct if not just ask for Becky Jacobs.
Hope this helps, Jerry.