I bought a set on eBay that Fit. Mine are 1 1/2" ID. 1 7/8" OD.
They work fine. There are a lot of them, but they are about $9 each. Mine were a lot cheaper when I got them a few years back.
There are USA vendors, and their grommets are (supposedly) rated to 225*F.
Mine have held up well since installation.
Rocky
Ron's suggestion may be a better one.