Sorry about that - I didn't check that on Rockauto today. It appears that 1574122 is an even newer part replacement. It gibes with 1573517 in that part numbers 15844096 and 22754988 are listed alongside 1574122. So I'm confident that's a good fit.Temp valve #1574122 and mode #1573516
BTW, on these kinda things, I usually check the local parts stores, too. Sometimes postage eats up the savings of mail-order. I see a Dorman at OReillys for 36 bucks. But, in that case, I'd go with the ACDelco at Rockauto instead.