The DEF 2017-2019 Chevy Silverado GMC Sierra 2500 & 3500HD Diesel Exhaust Fluid Pump is a direct replacement part that comes with a pump included. It is designed for Chevy and GMC vehicles and features 100% accuracy of fit, making it easy to replace. The pump drive type is electrical, and it is placed on the lower part of the vehicle. This OE quality pump is a perfect fit for models such as Sierra, Silverado 2500/3500 2017-2019, High Country, LT, LTZ, WT, Base, Denali, SLE, and SLT. With compatibility with various engine types, this pump ensures efficient emission control for your vehicle.