Emailed asking if they had a specific generator transfer switch electronics and they responded within hours with not only the exact part I needed but pictures to confirm it. For sure not your every day pick a part lot specializing in RV's. You can email them, call them, or stop by and look in their cage for electronics, browse the huge tent for common items (and quite a few not so common items) or wander their lot and pull the parts you need from their revolving stock of RV's. They are great and work with you. I found the same part on Amazon for less and they beat the price. Couldn't be happier. I'll always try this place first.