This is a black colored, automotive wire loom. This loom is 15 feet long and has a 1" diameter.

New. Never Installed. OEM part. Bulk Overstock

GM Part # 15142740

Alternate GM Part #'s 12013948 ; 25526850 ; 22518590 ; 17981026 ; 01259680 ; 26017314 ; 12019338

Item is number 30 in the GM diagram