3GTU9EET5MG378940 | 2021 GMC SIERRA K1500 AT4

On this page, you will discover the complete profile of the 2021 GMC SIERRA, including its full copart bid history and auction history. This 2021 GMC SIERRA has been meticulously cataloged to provide you with every detail: VIN 3GTU9EET5MG378940, K1500 AT4 trim, BLACK exterior, and a powerful 3.0L 6 engine running on DIESEL. With AUTOMATIC transmission and 4X4 W/REAR WHEEL DRV drive, this GMC demonstrates superior performance and reliability.

Enter VIN 3GTU9EET5MG378940 to unlock high-resolution photos showcasing the exterior, interior, engine bay, and undercarriage. Each image is tagged by VIN 3GTU9EET5MG378940 to guarantee precision. You will also find detailed damage reports, repair estimates, and structural insights that highlight dents, scratches, and panel replacements. Our platform provides the original title document (MA CT) for authenticity and full transparency.

Review the timeline of bids to understand market value trends, compare opening bids to the final sale price on 9 Oct 2026, and verify the mileage of 149,753 miles. Whether you are evaluating, purchasing, or selling, the comprehensive data on this SIERRA and GMC equips you with the knowledge to make confident decisions. Discover full vehicle history, damage information, high-resolution photos, and more—all available in one place.