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Old Jul 24, 2013 | 09:51 PM
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Default Thermostat Housing
is this the wrong Housing 4 04 5.3? 160 stat won't fit wft !!!
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Old Jul 24, 2013 | 10:50 PM
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Looks more like the wrong t-stat. It should have two tabs opposite of each other that lock into those legs on the housing
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Old Jul 25, 2013 | 03:21 AM
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On the thermostat said for a LQ & LM 7 ENGINES
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Old Jul 25, 2013 | 10:12 AM
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The housing you show is for GenIII (requires a GenIII TS (has ears that mate to those tangs)).

The TS you show is for GenIV (requires a GenIV housing (has no ears, and no harness post)).


Also note that a GenIII housing will not fit into a GenIV pump (unless you file the tangs for clearance).
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Old Jul 25, 2013 | 10:29 AM
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Look at these:

https://ls1tech.com/forums/generatio...anability.html

https://ls1tech.com/forums/generatio...t-housing.html

https://ls1tech.com/forums/generatio...n-correct.html
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Old Jul 26, 2013 | 03:30 AM
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i have the wrong housing for my 04 engine !
https://ls1tech.com/forums/generatio...anability.html
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Old Jul 30, 2013 | 08:28 PM
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Where can I get a 2 piece housing ?
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Old Jul 31, 2013 | 10:21 AM
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From GM.
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Old Jul 31, 2013 | 01:07 PM
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i just did the bb mod on my stock Tstat..
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Old Jul 31, 2013 | 01:31 PM
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I just went through the same thing. GM has two pumps, the replacement pump has the two piece t-stat.

P/N for the two piece housing is 12600172 local dealer wanted $61
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Old Jul 31, 2013 | 07:23 PM
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Originally Posted by jaywill
i just did the bb mod on my stock Tstat..
Then file the outside of the ears on your housing so it fits all the way into the 2004+ pump.


edit: reworded.
Last edited by joecar; Jul 31, 2013 at 11:03 PM.
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Old Jul 31, 2013 | 08:11 PM
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Originally Posted by joecar
Then file the outside of the ears on your housing so it fits all the way into the new pump.
i have a old pump...
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Old Jul 31, 2013 | 11:04 PM
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Reworded post #11.
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Old Aug 2, 2013 | 04:26 PM
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Originally Posted by jaywill
i just did the bb mod on my stock Tstat..
Originally Posted by jaywill
i have a old pump...
Do you have old-style pump and old-style TS/housing...?

Does your housing fit into the pump...?

If it doesn't (ears of housing interfere on size of bore in pump) then you have the new-style pump.
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Old Aug 3, 2013 | 06:45 AM
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Originally Posted by joecar
do you have old-style pump and old-style ts/housing...?

Does your housing fit into the pump...?

If it doesn't (ears of housing interfere on size of bore in pump) then you have the new-style pump.

yes..
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