This is the capacitor you want. It's a mystery to me why Marco doesn't put a link to this part in your face when you add the switch to your cart (unless they've gotten wise since last time I ordered a cab switch). If you have more than one sys 11 game, buy a bunch to have on hand. You may be able to get them cheaper at GPE, but if you're already shopping through Marco...
https://www.marcospecialties.com/pinball-parts/C.1M500VR
Quoted from Cmjb13:I've seen switches for sale with capacitors already installed, but they weren't for Diner.
I take it they are needed if they are installed. Would I be able to re-use the existing ones or suggest getting new ones?
Any harm if they are left off?
I've never seen cab switches with the capacitor on already, that would be kinda nice.
You can re-use them, but there's not much sense in it. They are 30 years old and, like everything else, were intended to last 3 years. So, they owe you nothing. I was playing my PinBot one day when the flipper started sticking in the up position even after releasing the button. I quickly turned the game off and smelled a sick, hot electrical smell...but this wasn't coming form the back box. Turned out the cabinet switch capacitor had burned up. I had some on hand so was able to replace it quickly, so in my case anyway the switches outlived the capacitors. But it's a pretty good part to replace; if they're originals and you're doing a flipper rebuild (like every wise pin owner does, unless they are *certain* it was done within recent memory, and done correctly) it's a good time to put in fresh contacts everywhere.