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  2 Reviews
USD 74.95

Mishimoto Low Temperature Thermostats MMTS-CHV-01DL

2001-2010 GM 6.6L Duramax
  2 Reviews
$ $74.95
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The Mishimoto Chevrolet Duramax low temperature thermostats activate at a lower temperature than the OEM thermostats, making them the perfect solution for Duramax owners who live in warmer climates, or use their trucks under heavy load or strenuous driving conditions. Activating at a lower temperature means coolant will begin flowing through the system and allow for cooler temperatures.

  • Great for those in warmer climates
  • Keeps truck cooler under heavy loads


  • 1 - 174 F Thermostat
  • 1 - 180 F Thermostat
  • Limited Lifetime Warranty


  • MFG. Number MMTS-CHV-01DL
  • Manufacturer Name Mishimoto
  • Shipping Weight 5.00 lb.
  • Shipping Length 6 in.
  • Shipping Width 4 in.
  • Shipping Height 3 in.
  • UPC 748354804492
  • Warranty Yes
  • Warranty Info Limited Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


Location: Twentynine Palms,Ca
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.
don't waste the money
john wilbur
Location: belle glade, FL
Don't waste your money. I replaced the factory thermostats,with these hoping for a cooler running engine. But i saw no difference

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Questions and Answers

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Most Popular Questions

Why two thermostats in the 6.6L Duramax?
View Staff Answer 

The 6.6L Duramax engines are equipped with two engine thermostats.

It pretty much one of those because they can situations I've se this setup used before on larger Diesel engines I.e. The cat c12 and c15 from my experience it seems to have a better flow when open