Fitment: Compatible with 2015-2018 Chevy Silverado 1500 all Cab Models.Compatible with 2015-2018 GMC Sierra 1500 all Cab Models.Compatible with 2015-2019 Chevy Silverado 2500 3500 all Cab Models.Compatible with 2015-2019 GMC Sierra 2500 3500 all Cab Models.Compatible with 2019-2021 Chevy Silverado 1500 regular cab ONLY.Compatible with 2019-2021 GMC Sierra 1500 regular cab ONLY.Compatible with 2020-2021 Chevy Silverado 2500 3500 regular cab ONLY OE Standard: Excellent durability.Complies with Original Equipment (OE) standards. Interchange Part Number: 84900397. Function: The Brake light offers enhanced visibility, waterproof and dust-proof. Not only durable but can withstand extreme weather conditions to ensure safely driving. SAE/DOT Approval :This product undergoes strict quality control. waterproof dust-proof anti-aging anti-yellowing. Not only durable but can withstand extreme weather conditions. Clear Visibility: Rear high-mounted brake light not only provides a cool look and excellent illumination, but It also improves safety and high recognition. The brake light comes on faster to avoid tailgating accidents. Third Brake Light Compatible with Chevy Silverado GMC Sierra 1500 2500 3500 2015-2021 Stop Light Cargo Lamp 84900397 2350916