2005 Cavalier
Brake lights stayed on overnight and ran down the battery. Brake light switch pushed out of the retainer making the brake lights stay on. It would not push back in. And of course I broke the plastic retainer when trying to remove it.

I'm having trouble finding a replacement retainer. Anyone know what part number the retainer is? It looks like P/N 10418918. I bought 13808 from O Reilly's but it doesn't look like this is right. Anyone run into this before and know what P/N to get?

I included pictures of the switch, the broken retainer, and what the retainer looked like when it was installed.