GM 10256544 9C1 Silicone Heater Hose Assembly

This is an NOS GM 10256544 9C1 green silicone heater hose set. It's 100% complete and brand new, but there are some shelf wear black marks on the hoses that should clean off. I'm also including a pair of new reproduction assembly line 10253680 insulator washers and the 22536997 black attaching screw that you can use to replace the smaller washers and bright zinc screw that GM most recently provided with this part. This hose set is obsolete from GM!