AUTOFREE is a New Professional Automotive Accessories Brand. Our Company Dedicated to Produce and Invent High Quality Product to Broad Customers. SPECIFICATION Light Source: LED (backup lights use th stock bulbs or the original lights of car) Wiring Harness: Not included Certification: DOT/SAE approved Color Finish: Black/ Smoke Replace Original (OE) Part#: 23141275, 23431876(R);23141274, 23431875(L) FITMENT 2014 CHEVY Silverado 1500 2015 CHEVY Silverado 1500 2016 CHEVY Silverado 1500 2017 CHEVY Silverado 1500 2018 CHEVY Silverado 1500 2015 Chevy Silverado 2500HD 2016 Chevy Silverado 2500HD 2017 Chevy Silverado 2500HD 2018 Chevy Silverado 2500HD 2015 Chevy Silverado 3500HD 2016 Chevy Silverado 3500HD 2017 Chevy Silverado 3500HD 2018 Chevy Silverado 3500HD Package Include 1 Pair Tail Lights(Left and Right Side) PS:Unless noted otherwise, these are new aftermarket parts. They align with original equipment(OE) specification and act as a direct replacement for the factory part. They will fit and function as the original factory part did.