ACDelcoGM Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module
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ACDelcoGM Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module

4.3/5
Product ID: 472896904
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Details

  • Brand
    ACDelco
  • Fit Type
    Vehicle Fit
  • Vehicle Service Type
    Truck
  • Item dimensions L x W x H
    10.75 x 8.25 x
  • Item Weight
    2.3 Pounds
🚛Optimized for diesel trucks
⚙️Precision GM OE fit
🛠️Durable alloy steel body

Description

⚙️ Keep your GM truck running clean and strong—don’t settle for less!

  • BUILT TO LAST - Robust alloy steel construction ensures long-term durability
  • TRUSTED ORIGIN - Manufactured in Poland under strict quality controls
  • TAILORED FOR TRUCKS - Vehicle-specific design optimized for diesel-powered trucks
  • EFFORTLESS INSTALLATION - Tank mount with hose barb connections for quick, secure setup
  • FACTORY GRADE RELIABILITY - Engineered to GM OE specs for flawless fit and function

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.

Specifications

BrandACDelco
Fit TypeVehicle Specific Fit
Vehicle Service TypeTruck
Item dimensions L x W x H10.75 x 8.25 x 6.25 inches
Item Weight2.3 Pounds
Specification MetOE
Auto Part PositionRear
Outlet Connection TypeBarb
Body MaterialAlloy Steel
Inlet Connection TypeHose Barb
Gas TypeDiesel
Mounting TypeTank Mount
Operation ModeMechanical
Product GradeReplacement Part
ManufacturerACDelco
UPC193468541311
ModelGM Original Equipment
Item Weight2.3 pounds
Product Dimensions10.75 x 8.25 x 6.25 inches
Country of OriginPoland
Item model number84545446
ExteriorMachined
Manufacturer Part Number84545446

Reviews

4.3

All from verified purchases

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.

J**S

Great

Works great

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

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.

J**H

Great replacement

Great replacement

D**N

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 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.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Acdelcogm Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module | Desertcart French Guiana