I have to change my block heater and I figured with 125,000 on my truck I would change the water pump and coolant at the same time. Has anyone ever used a GMB water pump? I have used GMB water pumps on imports and haven't had a problem. I have a pressed on pulley with thread on fan clutch. So this pump should be the 130 gph pump right. The reason I ask is because GMC wanted $396 list and it was $270 my cost. I called a warehouse we use and the guy told me $31.53 for a brand new GMB water pump. I ordered it just to see if it even looks right, and it looks just life my O.E. one except it isn't painted black.

When I replaced my water pump, it was like $80 from Checker. Haven't had a problem with it.