Upgrade Aluminium Thermostat Housing Assembly(1PCS).Replaces Part # 12674639 15-11125.Fit for 2014-2020 Chevy Silverado 1500 & Suburban & Tahoe,GMC Sierra 1500 & Yukon & Yukon XL & Cadillac Escalade.

Doesn’t fit perfectly had to force ever so slightly

What I ended up doing was taking the old unit apart. Taking the new unit apart. Switching out the guts from the new unit and put them in the old housing. The new unit would not fit into the intake. The machine work on the new housing is incorrect.

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Good

Thermostat was stuck open when installed, had to buy a different one.

Thought it fit kinda tight when I put it in. Stopped working after a few miles of driving. Leading to temp gauge not working and the radiator fan non stop running.

The part looks good but it won't let the truck get up to temp only 175 degrees causing the check engine light to keep coming on for the engine not reaching operating. I would not recommend

Tight fit and doesn't allow it to open and close as it should. Costed me quite a bit from a mechanic diagnosis to find out that was the problem. You dont expect a new replacement part to be the problem