GM Genuine Parts 251-663 Water Pump Gasket

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.

Although new gaskets came with my water pump I ordered this brand and feel they were of better quality. No Leaks.

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.

2 sellos se necesitan para la bomba de água.

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

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.

High quality OEM GM water pump gaskets. Great values. Simple installation. Total of 2 hours replacing pump thermostat and gaskets kit. Great prices too

Perfect fit.