GZYF L&R Rear Power Towing Mirrors LED Turn Signal Heated Folding Telescoping for Chevrolet (Chevy) Silverado / GMC Sierria for 2003-2006 Come as a pair (driver side + passenger side) Built-in LED Turn Signal Light on mirrors. Good quality and well installation. Heating Function & Power Operation. Please notice it is Manual Folding & Extending. Direct replacements. Chevrolet Siverado GMC Sierra Driver &Passenger Side( 2 Sides) Replacement Part number: GM1320355 & GM1321355