🚛 Upgrade your diesel truck’s emission game with GM precision power!
The ACDelco GM Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module is a GM-recommended, vehicle-specific replacement part designed for diesel trucks. Manufactured to exact GM OE specifications, it features a durable alloy steel body and mechanical operation for reliable emission control. With precise fitment and robust construction, it ensures optimal performance and longevity in emission reduction systems.
| Brand | ACDelco |
| Fit Type | Vehicle Specific Fit |
| Vehicle Service Type | Truck |
| Item dimensions L x W x H | 10.75 x 8.25 x 6.25 inches |
| Item Weight | 2.3 Pounds |
| Specification Met | OE |
| Auto Part Position | Rear |
| Outlet Connection Type | Barb |
| Body Material | Alloy Steel |
| Inlet Connection Type | Hose Barb |
| Gas Type | Diesel |
| Mounting Type | Tank Mount |
| Operation Mode | Mechanical |
| Product Grade | Replacement Part |
| Manufacturer | ACDelco |
| UPC | 193468541311 |
| Model | GM Original Equipment |
| Item Weight | 2.3 pounds |
| Product Dimensions | 10.75 x 8.25 x 6.25 inches |
| Item model number | 84545446 |
| Exterior | Machined |
| Manufacturer Part Number | 84545446 |
J**N
Fixed speed derating/limiting
Fit perfect for my 2018 L5P. Had issues with my truck derating my speed incrementally. I had already replaced the upstream and downstream nox sensors. Didn't fix it. Replaced this, and could see where the issue was on the old pump, within the female wiring connector. One of the pins looked to be arcing and failed. Haven't needed to go to the dealer for anything. Truck is running great.
J**H
Factory replacement
You have to pay to play. When your DEF pump dies don’t replace it with a knockoff and use an OEM AC Delco replacement. This is an easy install but does require the use of an advanced scan tool to clear the codes and get the truck out of limp mode. A standard scan tool will NOT work.
A**R
Works as it's ment to.
Installed and truck runs fine now. Had code P1050, after install and clearing the code CEL went away. This part is known to go out fairly often. Hoping I can get good life out of this product.
S**H
Failed within a month (twice)
I have purchased two of these and both have failed within a month... I'm starting to think this is a counterfeit part
J**
Oem
Starting to click and tick. I hope it last
S**N
Exactly what we needed.
Fits perfect and working good.
T**L
works perfect
works as it should
D**9
Pump
Fits and works great.
Trustpilot
3 days ago
2 months ago
