84162464 | Genuine GM® Diesel Exhaust Fluid (DEF) Supply Pump Module for Sierra and Silverado

Useful Information

Description and Purpose:

Here is a Genuine Diesel Exhaust Fluid (DEF) Supply Pump Module from GM, delivered in new condition and referenced by Part number: 84162464. This unit pulls DEF directly from the tank and builds the pressure needed for dosing through the SCR system. It features a sealed electrical connector and an integrated filter to keep crystallized contaminants away from the injector on 2017–2019 Silverado and Sierra HD vehicles.

Why Replacement is Important:

If the pump can no longer maintain pressure, the emissions system cannot dose correctly, which eventually forces the engine into reduced power mode.

Impact on Vehicle Performance:

With stable DEF flow restored, the vehicle retains its full output, avoids derate events, and keeps emissions performance consistent during heavy hauling.

Manufacturer Information: 

General Motors® produces parts crafted to withstand daily wear, delivering reliable performance backed by strong automotive innovation.

Tags & Category: DEF Pump Module, Diesel Exhaust Fluid System, Emissions Control Components, GM Truck Parts, Diesel Exhaust Fluid Supply Pump, DEF Pump Module GM, DEF Pump Silverado, DEF Pump Sierra, 6.0L CNG, 6.6L Diesel, HD Truck Emissions, DEF System Pump, GM Emissions Component, Sierra 2500, Sierra 3500, Silverado 2500, Silverado 3500

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.