⚙️ Keep your GM truck running clean and strong—don’t settle for less!
The ACDelco GM Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module is a GM-recommended replacement part designed specifically for diesel trucks. Crafted from durable alloy steel and manufactured to exact GM OE specifications, it guarantees a perfect fit, reliable performance, and long-lasting durability. Featuring a mechanical operation mode and easy tank mount installation, this pump module ensures your vehicle’s emission system runs efficiently and meets factory standards.
| 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 |
| Country of Origin | Poland |
| 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.
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.
M**E
Fixed my issue. OEM part
Original GM product. Fixed my P1050 code. Make sure to completely fill the def tank before starting. I only put one jug in to test it and it was still saying the tank was empty. Added a second jug and the warning went away. Way cheaper than the $1100 that the dealer wanted for the same part.
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
J**H
Great replacement
Great replacement
D**9
Pump
Fits and works great.
V**A
The product defects are not the sellers fault.
The product which was made by GM failed. Nothing the seller did wrong. The shipping, service, and how the refund was handle were great.
Trustpilot
3 days ago
1 month ago
