---
product_id: 472896904
title: "GM Genuine Parts 84545446 Emission Reduction Fluid Supply Pump Module"
brand: "gm genuine parts"
price: "3964.97 DT"
currency: TND
in_stock: true
reviews_count: 11
category: "Gm Genuine Parts"
url: https://www.desertcart.tn/products/472896904-gm-genuine-parts-84545446-emission-reduction-fluid-supply-pump-module
store_origin: TN
region: Tunisia
---

# Truck-specific fitment OEM-spec mechanical pump 24-month unlimited mile warranty GM Genuine Parts 84545446 Emission Reduction Fluid Supply Pump Module

**Brand:** gm genuine parts
**Price:** 3964.97 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your diesel truck emission-smart and road-ready with GM Genuine Precision!

## Quick Answers

- **What is this?** GM Genuine Parts 84545446 Emission Reduction Fluid Supply Pump Module by gm genuine parts
- **How much does it cost?** 3964.97 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/472896904-gm-genuine-parts-84545446-emission-reduction-fluid-supply-pump-module)

## Best For

- gm genuine parts enthusiasts

## Why This Product

- Trusted gm genuine parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision OEM Fit:** Engineered to GM OE specs for flawless integration and peak performance.
- • **Optimized DEF Delivery:** Gerotor pump design guarantees consistent emission fluid supply for cleaner exhaust.
- • **Peace of Mind Warranty:** Backed by a 24-month unlimited mile limited warranty to keep your rig running smooth.
- • **Durable Alloy Steel Build:** Robust construction ensures long-lasting reliability under tough diesel conditions.
- • **Truck-Tailored Compatibility:** Specifically designed for GM diesel trucks, including 2017 L5P Duramax and Chevy HD 2500 4x4.

## Overview

The GM Genuine Parts 84545446 Emission Reduction Fluid Supply Pump Module is a GM-recommended, vehicle-specific replacement part crafted to meet original equipment standards. Built from durable alloy steel with a gerotor mechanical design, it ensures reliable Diesel Exhaust Fluid delivery to reduce emissions effectively. Compatible with GM diesel trucks like the 2017 L5P Duramax and Chevy HD 2500, it comes with a 24-month unlimited mile warranty, offering professional-grade durability and peace of mind for emission system maintenance.

## Description

ACDelco GM Original Equipment Diesel Exhaust Fluid (DEF) Pump is a GM-recommended replacement component for one or more of the following vehicle systems: ignition, and/or engine fuel management. This original equipment pump will provide the same performance, durability, and service life you expect from General Motors. WARNING: CA Prop 65 - Cancer and Reproductive Harm

Review: Worked like a charm - I had been contemplating deleting my truck after a previous pump didn't solve my problem. The pump I needed was for 2017 L5P Duramax engine and this was news to me that diesel trucks needed emissions items that are so expensive. My first replacement pump was purchased on desertcart and after the mess and stench of DEF fluid cleared my truck wasnt fixed and even took it to the dealership to check my work and the pump. Sadly it wasnt fixed and I still had to look a big warning on my dash screen and had to remove that pump, deal with 2.5gals of DEF fluid wasted($21 wasted) and my truck wasnt fixed. The refund and return policy of desertcart is the best but I just wanted my truck fixed. Now I ordered this pump, learned from previous mistake and only put 1 gal into the DEF tank and went for a drive to see if the problem was fixed. Initially the warning was still there, but after about 20mile drive the check engine light was off which was a sign that this pump worked 50% of my problem was solved. I pulled over and the warning was still showing on the dash but no check engine light came back, so I spent another $21 on 2.5gal bottle of DEF fluid(a full tank is 5gal). I waited for about 5mins, turned the key forward without starting the truck and the warning finally disappeared which meant the last thing to do was check the level. Scrolled through the menus(which were not available before) to the DEF level screen and it read"OK". Drove home with no other problems and now I am happy my truck is fixed for now. Update: Code for DEF level came back again along with def heater and my truck went into limp mode in Oct 20203. Now I have a big shiny lawn ornament that is a 2017 GMC Sierra Crew cab Long-bed dually because of this damn DEF pump again and now the truck is speed limited for the same issue.
Review: GM PRODUCTS - Work perfect for my 2017 Chevy HD 2500 4x4, diesel

## Features

- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08NNFHSB8 |
| Auto Part Position | Rear |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #61,609 in Automotive ( See Top 100 in Automotive ) #864 in Automotive Emission & Exhaust Products |
| Body Material | Alloy Steel |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Compatible with Vehicle Type | Truck |
| Connector Type | Barb |
| Customer Reviews | 4.2 out of 5 stars 130 Reviews |
| Fit Type | Vehicle Specific Fit |
| Gas Type | Diesel |
| Included Components | Diesel Exhaust Fluid (DEF) Pump |
| Inlet Connection Type | Hose Barb |
| Item Dimensions | 8.25 x 6.25 x 10.75 inches |
| Item Type Name | Emission Parts - GM,Emission Parts - GM |
| Item Weight | 2.3 pounds |
| Item dimensions L x W x H | 8.25 x 6.25 x 10.75 inches |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 84545446 |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com for more details. |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 84545446 |
| Mounting Type | Tank Mount |
| Number of Items | 1 |
| OEM Equivalent Part Number | 84545446 |
| Operation Mode | Mechanical |
| Outlet Connection Type | Barb |
| Part Interchange Info | replacement |
| Product Grade | Replacement Part |
| Product Style | Gerotor |
| Specification Met | OE |
| UPC | 193468541311 |
| Unit Count | 1 Count |
| Vehicle Service Type | Truck |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Fit Type:** Vehicle Specific Fit
- **Item dimensions L x W x H:** 10.75 x 8.25 x 6.25 inches
- **Material:** Alloy Steel
- **Vehicle Service Type:** Truck

## Images

![GM Genuine Parts 84545446 Emission Reduction Fluid Supply Pump Module - Image 1](https://m.media-amazon.com/images/I/51enHEm0UpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked like a charm
*by D***N on August 25, 2023*

I had been contemplating deleting my truck after a previous pump didn't solve my problem. The pump I needed was for 2017 L5P Duramax engine and this was news to me that diesel trucks needed emissions items that are so expensive. My first replacement pump was purchased on Amazon and after the mess and stench of DEF fluid cleared my truck wasnt fixed and even took it to the dealership to check my work and the pump. Sadly it wasnt fixed and I still had to look a big warning on my dash screen and had to remove that pump, deal with 2.5gals of DEF fluid wasted($21 wasted) and my truck wasnt fixed. The refund and return policy of Amazon is the best but I just wanted my truck fixed. Now I ordered this pump, learned from previous mistake and only put 1 gal into the DEF tank and went for a drive to see if the problem was fixed. Initially the warning was still there, but after about 20mile drive the check engine light was off which was a sign that this pump worked 50% of my problem was solved. I pulled over and the warning was still showing on the dash but no check engine light came back, so I spent another $21 on 2.5gal bottle of DEF fluid(a full tank is 5gal). I waited for about 5mins, turned the key forward without starting the truck and the warning finally disappeared which meant the last thing to do was check the level. Scrolled through the menus(which were not available before) to the DEF level screen and it read"OK". Drove home with no other problems and now I am happy my truck is fixed for now. Update: Code for DEF level came back again along with def heater and my truck went into limp mode in Oct 20203. Now I have a big shiny lawn ornament that is a 2017 GMC Sierra Crew cab Long-bed dually because of this damn DEF pump again and now the truck is speed limited for the same issue.

### ⭐⭐⭐⭐⭐ GM PRODUCTS
*by L***Y on July 13, 2026*

Work perfect for my 2017 Chevy HD 2500 4x4, diesel

### ⭐⭐⭐⭐⭐ perfect fit, easy to install !
*by C***. on January 6, 2025*

It was shipped on time, really easy to install, it took me about an hour to remove the old pump and install the new one, it save me hundreds of dollars doing it myself. after installation have to drive a couple of miles before the computer go back to normal

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-31*