New in the OEM box – never installed - NOS GM correct fitting roof rack rail support end cap - P.N. 15171715 - group number GR.17.070 – fits passenger’s right rear RR - factory for 2003 2004 2005 2006 Chevy Tahoe and Suburban as well as GMC Yukon and Suburban - may fit other models as well - verify part number and pictures against your application – slightly dusty former GM dealership inventory in new condition as shown