This tail light set is designed for use on 1999-2002 Chevrolet Silverado 1500 and 2500 GMC Sierra 1500 vehicles. The set includes two tail lights with OE comparable lens colors and DOT and SAE certifications. The number of bulbs is six and they are sold without bulb(s). The fitment type is direct replacement and the OE numbers are 19169018-PFM and 19169017-PFM. The manufacturer part numbers are also 19169018-PFM and 19169017-PFM. The set comes with a 1-year unlimited-mileage warranty and is not a universal fitment or a performance part.