Was an Amazon return but everything was checked and everything is good.

The DEF Pump Assembly for Silverado and Sierra 2500HD / 3500HD trucks from 2017-2019 is a direct replacement part manufactured by MNZ9WH. This pump is designed for Chevy and GMC vehicles, specifically for the 6.6L V8 engine. It features 100% accuracy of fit and is easy to replace, making it a reliable choice for those in need of a DEF Diesel Exhaust Fluid Pump. Made in China, this assembly includes the necessary components and is compatible with various OE/OEM part numbers for seamless installation.