Heating and Cooling› Water Pumps

ACDelco

Engine Water Pump

$467.47

SKU: 251-719

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The ACDelco 251-719 is an engine water pump designed to circulate coolant and maintain proper engine temperature. This original equipment water pump has been manufactured to fit GM vehicles, offering the same performance, durability, and service life as the original factory component. It features uniform wall sections, smooth coolant-flow cavities for efficient operation, and coated seals with a stainless steel spring for durability.
Show original supplier description
The ACDelco 251-719 Engine Water Pump is a GM Original Equipment component designed to circulate coolant through your vehicle's radiator and engine system, ensuring optimal engine temperature and performance. Manufactured to meet stringent GM OE specifications, this water pump provides the same fit, form, and function as the original part, offering reliable, leak-resistant performance. Key features include uniform wall sections and smooth coolant-flow cavities for efficient operation, as well as coated seals with a stainless steel spring for enhanced durability. Constructed with a cast iron housing and steel impeller, this water pump is built to last. It includes back housing but does not come with a fan clutch, thermostat and housing, mounting hardware, or pulley, and is driven by a serpentine belt. The specifications include a hub flange diameter of 84.6 mm, 4 hub flange mount holes, and 4 pump mount holes, with 3 outlet ports. The pump itself weighs 13.9 lbs.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandACDelco
Part Number251-719
CategoryHeating and Cooling

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy