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Select your vehicle
Vehicle Info Required to Guarantee FitAdd Vehicle

AC Delco®
251-721 GM Original Equipment Series Auxiliary Water Pump - Direct Fit, Sold individually

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$172.49
Manufacturer #251-721
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1

Highlights

Brand:
Warranty:
24-months or unlimited mile AC Delco limited warranty
Quantity Sold:
Sold individually
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Product Fit:
Direct Fit
Recommended Use:
OE Replacement
Series:
GM Original Equipment Series

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
2008-2009 Cadillac CTS
Base
6 Cyl 3.6L
enginedesignation: LLT, enginevin: V, AWD
2008-2009 Cadillac STS
Platinum
6 Cyl 3.6L
enginedesignation: LLT, enginevin: V, AWD
2008-2011 Cadillac STS
Base
6 Cyl 3.6L
enginedesignation: LLT, enginevin: V, AWD

Product Information

ACDELCO OE REPLACEMENT AUXILIARY WATER PUMPS

The factory-original fit and lasting function of ACDelco’s OE replacement auxiliary water pumps provide the perfect repair without breaking your budget. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.

  • High-grade design delivers extended lifespan
  • Carefully formed to suit your specific vehicle
  • Engineered to exact OE standards
  • Has undergone stringent evaluation to guarantee proper fit and performance
Need help?Call our product expert1-866-529-0412
Chat with us
Mondays - Sundays7am - 11pm ET | 4am - 8pm PT
Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

1
Is the back up electrical water pump ?Deborah K.Jul 22, 2020
Best Answer:Hi, This is an Auxiliary (Support) Water pump not a back up.
Aldrin P.STAFFJul 22, 2020
0
do you have electrical plug connection for this pump?Allen H.Apr 05, 2023
Best Answer:Hi Allen, thank you for reaching out. Per checking, we don't have the electrical plug connector for this item. Click this link to order the part at a discounted price today while supplies last: <a href="https://www.carparts.com/auxiliary-water-pump/ac-delco/ac251721?can=CPAP3648_CSQA_20230405" target="_blank">https://www.carparts.com/auxiliary-water-pump/ac-delco/ac251721?can=CPAP3648_CSQA_20230405</a> I hope this helps. Happy shopping.
Aldrin P.STAFFApr 05, 2023