This ACDelco Professional Serpentine Belt is a vital component for your car or truck's accessory belt system. It is designed to fit perfectly with your GM 19311008 Silverado Avalanche Sierra 6 Rib and provide reliable performance. The belt is made with high-quality materials and has been manufactured in Mexico to ensure that it meets the highest standards of quality and durability. With its universal fitment, this Serpentine Belt is compatible with a wide range of car and truck models. It is not a vintage part and is not intended for use as a performance part. The interchange part number is 1060715 and the OE/OEM part number is 19311008. Whether you're replacing a damaged belt or upgrading your accessory belt system, this ACDelco Professional Serpentine Belt is the perfect choice.