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ACDelco

ACDelco GM Original Equipment 84545446 Emission Reduction Fluid Supply Pump Module

  • Based on 73 reviews
Condition: New
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$569.78 Why this price?

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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Sep 2
Order within 9 hours and 50 minutes
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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

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


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


Date First Available: November 16, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • 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. ... show more
Reviewed in the United States on June 15, 2025 by Jessica Paxton
    • 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.
Reviewed in the United States on June 24, 2025 by Amazon Customer
    • Great
Works great
Reviewed in the United States on July 14, 2025 by joseph l Rogers
    • 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
Reviewed in the United States on June 2, 2025 by Sarah
    • Oem
Starting to click and tick. I hope it last
Reviewed in the United States on April 11, 2025 by J.Rudes
    • Fixed my issue. OEM part
Review Image by Michelle Michelle
Review Image by Michelle Michelle
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.
Reviewed in the United States on June 1, 2025 by Michelle Michelle
    • Great replacement
Great replacement
Reviewed in the United States on July 2, 2025 by Jason Besch
    • 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. ... show more
Reviewed in the United States on August 25, 2023 by DAMON MARSHBURN

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