You can always count on Gates brand for quality. I bought this for my 2002 Chevy Tahoe LT having the 5.3 Vortex motor. It comes complete minus your fan clutch and cooling fan. My running tempuratures were a little higher prior to having to change my water pump due to seepage of coolant. It was probably just a deal but none the less, I didn't have time to figure it out and my original water pump has seen thousands of hard miles as I travel a lot. Since installing this pump, I have monitored my tempuratures and running about 192 instead of around 210 degrees. Yes I put fresh Orange coolant back in the radiator but had my coolant concentrated to deal with minus tempuratures down to minus 20. The water pumps are brand new, not rebuilt. Comes with the tstat and water neck installed already making for an easy replacement. Now it's about replacing front brakes. Welcome to the wonderful world of vehicle ownership. Five star product