ACDelco Gold 252-845 (19195104) Engine Water Pump

Excellent in fit, finish and function. ACDelco, not original GM, but still, very good. Nicely finished mating surfaces with no leaks. A tip, do NOT use the gaskets provided. Toss them. Instead, use FEL-PRO ES 73010 Engine Water Pump Gasket Kit for Chevrolet Silverado available on Amazon. They are fully half the price of GM originals at only $6.50 for a pair and are clearly twice the quality.

Gaskets where hidden under the bottom flap in the box. They should put a note explaining this. I almost purchased new ones when I didn't see them in the box. Part fit great and went together without any problems. Do wish the part had better packaging inside the box to support the water pump. Box was thick though. Quality part as far as I can tell. My Chevy is back up and running great.

Good quality as expected. No leaks. No installation problems. Truck maintains its temperature(2005 GMC Yukon Denali)

There are other water pumps out there that will "fit," but none of them will fit as nice as this one, made to AC Delco's original specs. Once you get past all the typical, unexpected headaches of getting into your engine compartment to replace a part like this, the repair is actually pretty easy. Barring any unforeseen headaches, even an inexperienced DIY'er could probably get it done in a hour or so, not counting any system flushing or other prep you might want to do before the actual installation.The "kit" comes with all the gaskets you need, and you DO NOT need to add any extra adhesives or sealants. That stuff just makes a mess on/around the mating surfaces and your anchor bolts. For example, my replacement project was delayed for HOURS while I struggled to extract the OE anchor bolts from the old pump body and remove from them all the excess sealant the mechanic who installed it had slopped all over the gasket/port connections. The bead of silicone around the edges of the gasket holes gets compressed between the mating surfaces when you cinch down the anchor bolts, and forms a perfect seal.The pump manufacturer supplies two of their own, "knockoff" version of the AC Delco gasket, but I didn't trust 'em. I ordered the AC Delco ones from Amazon. Note that you'll need TWO of these gaskets, NOT one.If you're also replacing the thermostat (always a good idea when you're changing out the water pump), get the AC Delco one, too. It comes with a built-in o-ring that fits neatly into the thermostat housing and also does not require any additional gasket or sealant.So far, this thing is running totally flawless, and I'm HAPPY that I finally yanked out the old, leaky aftermarket junk that was in there before, and replaced it with the water pump that was MADE for my 2001 Suburban. No more having to check my coolant level every other week, and I know this pump will last a very long time before another replacement is required.

Perfect fit and not one leak! I installed it myself. Adequate delivery time. No complaints! I would definitely recommend to others. First time changing original water pump on my 2003 5.3 V8 Tahoe. Thank you so much. My old water pump was noisy and leaking. Agin, perfect fit and for the first time in a long time don’t have to top off or refill antifreeze reservoir.

This is what I was looking for, it fit and/or worked just fine with what I wanted to do! Yao-Yao...

Good Delco OEM product. Delivery was made in a reasonable amount of time and packaging was great

Good brand,good price.worked as it should.