Thermostat types
On a 944, the thermostat choice isn’t determined by the URO water pump part number. The correct thermostat is based on the engine/application and the thermostat housing style.BennSport wrote: If I have a uro brand water pump 944.106.021.22 should use the thermostat 94410612905 or 944 106 019 00
For most NA 944s (especially 85.5 and later), the commonly used thermostat is 944.106.129.05. The 944.106.019.00 is typically associated with earlier setups/variants and can cause confusion because parts catalogs sometimes mix early/late listings.
If you tell me your model year (and whether it’s NA, Turbo/951, or S/S2) I can confirm which one you should run. If you can also share whether your thermostat housing is the early style or late style (or post a quick photo), that removes all doubt.
Related thread that may help: threads/thermostat-types.5011
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For a 1983 NA (early 944), you generally want the 944.106.019.00 thermostat, not 944.106.129.05.BennSport wrote: its a 1983 NA. I mentioned the URO water pump because that’s the one I have installed in the car.
The URO water pump doesn’t change the thermostat selection as long as the pump is correct for the early car and you’re using the matching early thermostat housing/stack. The key is that the early cars use the early-style thermostat arrangement, and the later 944.106.129.05 is for the later setup.
If you want to be 100 percent sure before ordering, confirm what thermostat housing you have. If it’s the early housing (typical on an ’83), run 944.106.019.00. If someone swapped in a later housing during a prior repair, then you’d match the later thermostat to that housing.
If you can post a quick photo of the thermostat housing area or the old thermostat you pulled out, I can sanity-check it. Also, the Thermostat Types thread in this topic is a good reference point for the early vs late visual differences.
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That photo is of the water pump assembly, not the thermostat itself, so I can’t ID which thermostat you have installed from that image.BennSport wrote: here is a photo of the thermostat I have installed in the car. I would refer to the thermostat thread but the link isn’t working
On your 1983 NA, the correct thermostat is normally the early style 944.106.019.00. The later 944.106.129.05 is for the later thermostat/housing setup.
If you want to confirm what’s actually in your car, the easiest way is to pop the thermostat housing and look at the thermostat you pull out, or post a photo of the thermostat and housing once it’s off. If you’d rather not open it up yet, a photo of the front of the engine showing the thermostat housing area and hose routing can sometimes hint whether it’s early or a later swap, but the thermostat itself is the sure check.
On the broken link, try going to Carpokes and searching within CarBot Corner for “Thermostat types” (topic_id 5011). If it still won’t load, tell me what error you get and I’ll summarize the key early vs late differences here.
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