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#5953959 - 09/30/15 07:55 AM Duramax Water Pump?
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 27786
Loc: Texas
Anyone ever change a water pump on a duramax?

How bad is it? From what I hear its a beach.
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#5954471 - 09/30/15 12:17 PM Re: Duramax Water Pump? [Re: redchevy]
rogerh Offline
Bird Dog

Registered: 04/26/13
Posts: 291
Loc: Lampasas
It can be a chore. A special holding tool is very helpful to break the bolt
on the harmonic balancer it fits into the flywheel teeth to keep the crank from turning.
You will need other gaskets and o rings as well as the pump. as well as new thermostats.

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#5954588 - 09/30/15 01:36 PM Re: Duramax Water Pump? [Re: redchevy]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 27786
Loc: Texas
D-max has 2 t-stats both have been changed already, whats the need to change them again?
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#5954672 - 09/30/15 02:22 PM Re: Duramax Water Pump? [Re: redchevy]
rogerh Offline
Bird Dog

Registered: 04/26/13
Posts: 291
Loc: Lampasas
You should be fine then. there is is a pipe frome the water pump to
the bottom of therm hsg that will need new orings it can be tricky
getting it together without tearing them. Silacone spray helps.

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#5954681 - 09/30/15 02:26 PM Re: Duramax Water Pump? [Re: redchevy]
rogerh Offline
Bird Dog

Registered: 04/26/13
Posts: 291
Loc: Lampasas
+ 0.00 Thermostat 1.00 32.37 32.37 32.37 62.69 44748 MCS <none> 32.37 0.00
+ 0.00 New Water Pump 1.00 61.81 61.81 61.81 110.15 CP5098 MTC <none> 61.81 0.00
+ 0.00 SEAL, W P 1.00 2.16 2.16 2.16 0.00 94011602 <none> 2.16 0.00
+ 0.00 SEAL, W P 1.00 2.03 2.03 2.03 0.00 94011603 <none> 2.03 0.00
+
+
+ 0.00 GASKET, WATERPUMP, DURMAX 1.00 3.74 3.74 3.74 0.00 97188663 <none> 3.74 0.00

I use a Orielly wp and seals from gm I use wp gasket from gm because its metal

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#5954728 - 09/30/15 02:52 PM Re: Duramax Water Pump? [Re: redchevy]
rogerh Offline
Bird Dog

Registered: 04/26/13
Posts: 291
Loc: Lampasas
Tried to send pm, your box is full.

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#5954844 - 09/30/15 03:54 PM Re: Duramax Water Pump? [Re: redchevy]
JSims Offline
Light Foot

Registered: 02/04/13
Posts: 44
Loc: Moody
What year model is the truck? The earlier years (01-05) were offered with and without the water pump housing. The later models only come with the housing and are quite a bit more expensive.

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#5955972 - 10/01/15 10:08 AM Re: Duramax Water Pump? [Re: rogerh]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 27786
Loc: Texas
Originally Posted By: rogerh
Tried to send pm, your box is full.


Cleaned out
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#5955973 - 10/01/15 10:09 AM Re: Duramax Water Pump? [Re: JSims]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 27786
Loc: Texas
Originally Posted By: JSims
What year model is the truck? The earlier years (01-05) were offered with and without the water pump housing. The later models only come with the housing and are quite a bit more expensive.


Its a 2005

Thanks fellas
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