Shopping Cart

Your cart is empty.

Your cart is empty.

GM Genuine Parts 251-663 Water Pump Gasket

Free shipping on orders over $29.99

$7.30

$ 2 .99 $2.99

In Stock

About this item

  • May be made from fiber or a rubberized composite material
  • 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


ACDelco GM Original Equipment Engine Water Pump Gaskets are used between the water pump housing and the engine block or another component to seal the interface between the components. The gasket may be made of fiber or a rubberized composite material that provides a liquid tight connection. The gasket keeps the engine coolant in and keeps air out. These original equipment gaskets have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.


Luis
Reviewed in the United States on February 17, 2025
2 sellos se necesitan para la bomba de água.
Greg S
Reviewed in the United States on February 7, 2024
I tried cheaper waterpump gaskets that leaked. These solved the problem. Very good quality, 5 stars! Fit my 2005 GTO perfectly and will fit many other ls engines.
Rick
Reviewed in the United States on April 14, 2024
Perfect fit.
tu huynh
Reviewed in the United States on April 7, 2022
High quality OEM GM water pump gaskets. Great values. Simple installation. Total of 2 hours replacing pump thermostat and gaskets kit. Great prices too
Professor
Reviewed in the United States on April 11, 2022
These seem to be well made and look to be an exact fit, but my water pump came with a set included so I didn't need to use these
mike
Reviewed in Canada on April 22, 2020
Perfect ac delco quality fair price
Mark R. Wietstock
Reviewed in the United States on March 1, 2019
1) If you're replacing a water pump, you need TWO of these gaskets, NOT one.2) If you're buying the AC Delco pump, don't screw around with the gaskets supplied by the Chinese manufacturer who now makes the pumps for AC Delco. They probably work fine, but they're not as nice as these, and why not just spend a few more bucks on the best fit/seal you can get?These things fit perfect, went in "like buttah" and will not make a God-awful mess of the pump connections to the engine block, like paper gaskets smeared with a bunch of goo. That's what the clowns who did my first pump replacement used, and the whole area was a total nightmare to scrape and clean up for the new pump. Half of the anchor bolts were fouled with that junk, and the job took me an extra hour trying to get all the bolts out of the old pump body and clean all the hardened gasket adhesive and other crud out of their threads before re-inserting them in the new pump.Now, I know exactly what's in there; I know the pump connections to the engine block are clean as a whistle, totally watertight, and I'm HAPPY.
Anthony
Reviewed in the United States on May 27, 2018
Bought a new water pump and installed 2 of these gaskets with no issue after a year. I did add a small bead of high temp rtv onto the gasket but I'm sure it is not needed, I only did it because I had the water pump off 3 times chasing a leak before I just replaced the whole set up and did not want to take it apart a 4th time so I added it as more of a safeguard. Recommended
Guy
Reviewed in the United States on May 3, 2016
First a little background for those wondering if they think this might fix a loss of coolant issue with no visible leaks. I have a 99 (New Style) Silverado LS 5.3. I was losing coolant slowly and had no leaks to the ground. I ended up finding 3 leak sources.The first 2 were much more obvious. I pulled the water pump and replaced these gaskets as a last resort to fully stop the leaking. The 1st leak was one of the 2 quick disconnects for the heater core on the firewall. The Quick disconnect connector was rotten and was about $5 at a local auto parts store. The second leak I had was on my upper radiator hose. The clamp had cut into the hose and caused a slow drizzle down that cooked off from the heat before it could drip. I just cost off 2 inches of hose and reconnected.I still had a slow coolant leak even after finding those two. I decided to go for the water pump gaskets as a last resort. There is issues with some motors actually losing coolant through micro cracks in the head. I had my fingers crossed. Anyway, when I removed the water pump, I noticed all 6 of the bolts looked brand new except one. It was super corroded. I am pretty sure that is where the old gasket was leaking. I was hoping the old gasket would have stayed together when removing so I could have looked closer at it to see a source. The gasket was a orange felt color aftermarket and completely came apart when taking off the pump.These gaskets are very nice OEM. I almost cheaped out and bought Fel Pro but couldn't justify doing all that work and trying to avoid about 3 dollars in costs to go OEM metal over felt. I especially felt happy with that decision when I saw the condition of the felt gaskets that came off of the water pump. It has been just over 3 weeks since I installed the new gaskets and zero coolant loss!I would suggest looking close at your belts, hoses, tensioners, water pump, and thermostat while you got it broke down this far. If you know you haven't changed your AC or serpentine belt in years, do it now while you have everything apart.
Recommended Products

$16.86

$ 6 .99 $6.99

4.7
Select Option