Thermostat housing upper and lower gaskets - what is the difference?

Webley1991 · Jun 5, 2016

I notice that the upper and lower gaskets for the thermostat housing on a standard 2 1/4 diesel engine have two different part numbers.

What is the difference between the two? They look the same in the photos to me.

Thanks for any replies.

jamesmartin · Jun 5, 2016

Webley1991 said:
I notice that the upper and lower gaskets for the thermostat housing on a standard 2 1/4 diesel engine have two different part numbers.

What is the difference between the two? They look the same in the photos to me.

Thanks for any replies.

top one should have a larger hole in its center so thinner width

ging360 · Jun 6, 2016

It should be ok to only use two new top gaskets, have done this a month ago and the engine has suffered no ill effects. what ever you do done use two bottom gaskets as this could restrict the flow out of the thermostat.

Webley1991 · Jun 7, 2016

Thanks for the replies.

I ordered a kit which comes with one top and one bottom gasket. In the photo they looked the same.

Thermostat housing upper and lower gaskets - what is the difference?

Webley1991

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jamesmartin

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ging360

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Webley1991

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