AC Delco Professional water pump 4 years

[John105]

Aftermarket AC Delco is trash, I use OE AC Delco on GM vehicles but that's it.

jmoymmv I do believe that on a water pump, Professional is different from OE (our OE water pump was made in Canada and had the 6 bolts). But not on air filters/cabin air filters, from what I have purchased....

 

[zzyzzx]

Just use a GBM water pump. I've had good success with one on my Escort. Even changed out the timing belt and left the water pump in. The GMB water pump in my Alero is old too.