GAT57

My local GM dealership said a new line design came out in March 2023. It is GM part # 86788215 (this is for the new line and other needed parts, gaskets, etc., it is the "kit") IF you are under 60,000 miles and under 5 years it is covered under the power train warranty. At first he said no, I said dig a little deeper and type in that part # to make sure and the service manager said "well, it is covered!"

Any idea of the "new" revised oil line part # for a 2019 Silverado 1500 TrailBoss LT?