OE pullies died and are evidently cast from gold at $121 ea. at Nissan.
I found SKF makes the same for much lower cost. The part number is VKM- 62046 for grooved but I only see sourcing from Europe. Unfortunately, they won't arrive prior to relocating so had to go with OE.
Has anyone used the SKF offering's? Probably the only aftermarket one I'd trust.
Side note, Rock Auto says NSK is the OE supplier for the smooth idler so went that route to save a couple bucks over the dealer.