Water pumps. Which one would you buy?
#11
I bought a new, unopened Delco water pump last month, #12482919/GM #251-545 (stamped # on the actual pump housing is 12564115) and the blades look similar to those on the pump on the left.
Did someone rip me off?
Did someone rip me off?
#12
Senior Member
Certified GM nut
Joined: Jul 2004
Posts: 1,606
Likes: 2
From: West Point, Utah - Village Idiot
I like the machined gasket surface on the right one. I'd buy one just for that, then I'd set it on my desk at work and admire it all day. ...where'* my wallet?...
#15
Originally Posted by willwren
It would seem AC Delco went through a re-design.
I remember years ago (in 96?) I had trouble finding one. Some of the aftermarket ones that NAPA was selling back then had the impellers mounted on the shaft crooked and were rubbing the casing. I had to open several boxes before I found a good one.
#17
It is solid cast. And the measured/roughly calculated surface area of the impeller blades is quite a bit more. This pump will flow about 15-20% more than the Chinese pump pictured at the beginning of this topic, and the old OEM that I removed last night.