are all water pumps made by the same manufactor?

[boonie]

My 94 C4 OEM water pump has 67,000mi on it and i,ve read on the forum that the life expectancy for a OEM W/P is between 70-80,000 mi. so i thought i good ahead and change it now before it starts leaking coolant on my opti-spark unit. my question is this: i've gone to 4 different autoparts stores and their prices range from a low of $135.00 at auto zone to a hi of $195.00 at kragens, napa wants $175.00, a OEM from superior chevy $154.00 all W/P except the OEM comes with a lifetime warranty. Still are all these w/p made by the same manufactor and box+ labeled to each pictular autoparts vendor?
in other words are all thses water pumps the same only difference being the box+label the item is found in?
thanks boonie

 

[paintdaddy]

No, some are remanufactured and some are new.There are a handful of companies that make new water pumps amd about twice that many that rebuild them.

 

[Tom73]

A new AC Delco waterpump from The Last Detail is $183.00.

tom...

 

[C4CRAZY787]

The 92LT1 pump is different than the 93-96 LT1/4 pump's, I have 50k on mine and when it go's I plan on installing a Meziere HD Coolant Pump.