john wilbur (belle glade, FL) | June 18th, 2015
Don't waste your money. I replaced the factory thermostats,with these hoping for a cooler running engine. But i saw no difference
James (Twentynine Palms,Ca) | June 15th, 2016
I have had these installed for 2+ years in my truck. Its a daily driver that hauls a 25' gooseneck. Temperatures here are normally over 110 in the summer months. I have NEVER seen my trucks temp get above 210 degrees with these installed. My truck has the LLY with the known cooling issues but this works great to keep it running cooler. I would recommend this to anyone who wants a cooler truck in a warmer environment or anyone working there truck often! I don't understand the negative review... these are a great product.