My son is on his 2nd water pump with only 57k.  He only got 8k out of this last pump. Is there a better aftermarket pump?

I am still running the parts house one I put on about 150k miles ago. I dont know of a magic bullet.

Some say the Cummins water pump is the best. 

 

I'm still on the OEM water pump and closing in on 283k miles and ticking with it. No issues. The magic bullet that I know of is going to make sure the cooling system is completely flushed out and clean, and new coolant is used. If you just reusing old coolant it might have enough debris in the block killing the seals and bearings in the water pump. 

So these pumps are the same pump they been putting on since 2nd gen? I thought they changed the style of bearings.

When the 6.7 first came out the main difference was the design of the impeller, as the EGR cooler required more flow than the 5.9 motors. I am not sure what, if any, changes were made for the 13+ trucks with a difference emissions system. 

 

High rpm 6.7 users with deletes are known to swap to a 5.9 pump as the 6.7 is too much flow at high rpms without an EGR cooler. 

 

 

EDIT:

 

According to quickserve the 2013 385hp motor uses a 4309429 water pump, and a 2010 uses a  2881804. My 05 5.9 calls for a 2881805. 

Edited January 30, 20178 yr by AH64ID