This post is kinda part of my alternator problem... I think my water pump is failing, and as a result, sprayed water on my alternator that rusted out.<br /><br />Anyhow... I've been looking on the net for various water pump prices, and there seems to be a large variety of pumps available for the 5.0.<br /><br />Isn't the water pump the same on the small block Chevy ? Looks to me like they are all the same with a different name and price.<br /><br />I'm a Ford man myself, and I could probably tell you what part would interchange with them, but not Chevy's. 
<br /><br />Mercury Part Express says the part # is: 8503991<br />My boat currently has a reman on it: 850399R3<br />My engine has the composite timing cover.<br /><br />There are Sierra brands, Quicksilver, OEM GM... <br />Enough to make my head swim!<br />I can't seem to find a cross reference chart either.<br /><br />Any recommendations? The original pump failed within the warranty period. The reman that's on it now failed in about 2 years, so I'm not sure which one to trust... reman or OEM ?<br /><br />There are some on EBay, but I'm not sure if I want to trust buying from there (warranty, wrong part return, etc...)<br /><br />I've seen the Sierra brand for less than $60 on various sites, but that seems awful cheap compared to the average price of around $80.<br />Is the Sierra pump your "Walmart" of pumps, or does the web site offering that cheap price have good buying power? <br /><br />I'd still like to know if they are all the same!<br /><br /> <br /><br /><br />H.
<br /><br />Mercury Part Express says the part # is: 8503991<br />My boat currently has a reman on it: 850399R3<br />My engine has the composite timing cover.<br /><br />There are Sierra brands, Quicksilver, OEM GM... <br />Enough to make my head swim!<br />I can't seem to find a cross reference chart either.<br /><br />Any recommendations? The original pump failed within the warranty period. The reman that's on it now failed in about 2 years, so I'm not sure which one to trust... reman or OEM ?<br /><br />There are some on EBay, but I'm not sure if I want to trust buying from there (warranty, wrong part return, etc...)<br /><br />I've seen the Sierra brand for less than $60 on various sites, but that seems awful cheap compared to the average price of around $80.<br />Is the Sierra pump your "Walmart" of pumps, or does the web site offering that cheap price have good buying power? <br /><br />I'd still like to know if they are all the same!<br /><br /> <br /><br /><br />H.