Replaced the OEM one yesterday afternoon with a new one from AutoZone.  I tell you;  nothing lasts anymore, only 226,xxx miles/11years and this thing craps out on me!!  

 

 

Weep hole was plugged with dirt/**** etc.  The rubber O-ring was broken thru in one spot once I got her out.  Don't know if I tore it removing it though; as I had to take a wood dowel and place it on the water pump to break it free from the block.  I didn't wack it hard, just tapped to break the 11 year old dirt seal on the thing.  Once I saw that it moved from the block, it came out easily.

 

Cleaned up the mounting area, put a very light coat of grease on the O-ring, and re-installed.  

 

I did remove tension on the serpentine belt, and removed the OEM air filter box to gain some elbow room to get my big hands and wrenches in there!!

 

No extra parts left over, and no leaks either!!!

Still waiting for mine to wear out eventually. Knowing my luck I'll end up doing a rebuild or refreshing the engine because it will all fall apart at the last second.

Still waiting for mine to wear out eventually. Knowing my luck I'll end up doing a rebuild or refreshing the engine because it will all fall apart at the last second.

 

 

Parked the truck outside last night................next day I saw drip drops on the drive.  Upon further inspection, the water pump was wet, was leaking down the front passengers side of the engine.  Some spray on air box also.  Dripping off of the AC compressor mainly.

 

Had to be the first day it leaked, because I've had a clean piece of cardboard on the floor in my garage under my truck for months with no wet spots!!

Wash it all down and let the engine dry and check again.

Not too bad of a life, thou I would be VERY surprised if the Auto Zone one lasts 1/3 as long as anything but Cummins pumps get horrible reviews. 

 

How many hours on the pump?

Replaced the OEM one yesterday afternoon with a new one from AutoZone.  I tell you;  nothing lasts anymore, only 226,xxx miles/11years and this thing craps out on me!!  

226,000 miles isn't bad.  Obviously nothing will last forever, but having parts that go that far is good in my book.

Not too bad of a life, thou I would be VERY surprised if the Auto Zone one lasts 1/3 as long as anything but Cummins pumps get horrible reviews. 

 

How many hours on the pump?

 

7174 hours.................31.6mph average.

 

When I saw that it was leaking;  I went online to research them.  The consensus was that it's a "crap shoot" with water pumps no matter where one gets them.  This is a NEW pump, not a remanufactured one, and it looked almost identical to the OEM one.

I am pretty sure than anything but Cummins is the crap shoot, new or re-manufactured. I know several shops that will only use Cummins due to excessive non-OEM failures. ... but time will tell. 

I personally thing part of that problem is the coolant turning corrosive and eating seals and bearings premature. I've proved that time and time again up here with locals. They assume as long as the coolant isn't rusty colored its still good. But like all the systems I've drained out the last gallon typically comes out rusty. Really shocker to show a truck owner that the rust settles to the bottom and typically not seen. So like most I see locally drain off the coolant in a clean bucket, change the pump and pour the same coolant right back in. Good reason why there is such low out comes for some. Then great out come for others like myself. I'm already due for a coolant change now...

7174 hours.................31.6mph average.

 

 

 

 

Just did the math................298.xx days running!!!

Just did the math................298.xx days running!!!

 

Didn't even make it a year   

Didn't even make it a year   

 

Like I said;  nothing lasts anymore!!

 

BTW.....................last tank of fuel with only 1 day of trailer towing got me 22.1mpg average.  

OK;  I've got a leak that looks a lot like the water pump again.........................rusty colored water that smells of coolant on the front corner passenger side of engine.  I haven't done the snooping around the front of the engine yet to confirm, but it probably is.

 

OK John, are you satisfied???!!!  Probably order an OEM one from Geno's garage.

lol

The water pump on these trucks are the easiest I've ever changed. No gasket or sealer to deal with. Just the serp belt and 2 bolts. So I opted for a Napa pump when mine went out. Still going strong after 2 years. For the $40 cost I'd just throw another into the parts box in the truck and change it on the fly if it goes out on the road. Gee like a ratchet and one socket to change. Biggest issue is letting the truck cool enough to change it.

Edited May 25, 20168 yr by joecool911

Still got the OEM water pump yet at 263k miles.

 

@joecool911 is right these are very simple water pumps with the 2 bolts and a o-ring. Just make sure to clean the hole up with a bit of sandpaper and grease the hole slightly to prevent damage to the o-ring during install.

On May 27, 2016 at 10:06 AM, Mopar1973Man said:

Still got the OEM water pump yet at 263k miles.

 

@joecool911 is right these are very simple water pumps with the 2 bolts and a o-ring. Just make sure to clean the hole up with a bit of sandpaper and grease the hole slightly to prevent damage to the o-ring during install.

 

Did that with the one that's leaking now!!!

 

How much coolant do I need to drain to change this thing??   I replaced the one last year after I drained the system to replace the coolant with fresh.  I shouldn't need to drain the whole system, correct???

Might as well drain the entire system being the water pump is near the bottom of the water jacket.

My 12 valve with the second water pump on it, same pump as the 24 valve I believe, has almost 450 k on the truck. Can't remember when it got its second pump. A long time ago is all I know.

I think it's on it's third idler pully though.

Edited May 28, 20168 yr by JAG1

The water pump is near the top of the block. You probably don't have to drain more than 3-4 gallons out. 

3 minutes ago, AH64ID said:

The water pump is near the top of the block. You probably don't have to drain more than 3-4 gallons out. 

 

Is it that much higher? I thought they where down low in the jacket...