84162467 | Genuine GM® Diesel Exhaust Fluid (DEF) Supply Pump Module for Sierra and Silverado

Useful Information

Description and Purpose:

This Genuine GM Diesel Exhaust Fluid (DEF) Supply Pump Module arrives in new condition and carries Part number: 84162467. Its role is to pressurize and circulate DEF to the SCR injector while filtering contaminants that could crystallize inside the dosing lines. Built for 2017–2019 Silverado and Sierra HD vehicles running 6.0L CNG/Flex or 6.6L diesel engines, it keeps dosing volume accurate during sustained operation.

Why Replacement is Important:

When pump output drops, DEF flow becomes inconsistent, triggering emissions warnings and eventually limiting vehicle performance if not replaced.

Impact on Vehicle Performance:

With dependable DEF supply restored, the engine avoids derate behavior, improves aftertreatment efficiency, and maintains towing strength on demanding routes.

Manufacturer Information: 

General Motors® provides parts engineered for lasting reliability, supporting smooth operation and trusted performance across diverse vehicle platforms.

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.