DmaxStore High Flow Thermostat Kit, 2001-2016 LB7/LLY/LBZ/LMM/LML

Part# ‍DMAX-TK-0116

$57.66 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2001 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ/LMM/LML Duramax Diesel

Are you noticing higher temperatures in your truck lately? Has your truck accumulated high mileage? Consider replacing your thermostats with DMAX High Flow Thermostats - they are a direct fit for GM originals. Designed to open at the same temperature as stock, these thermostats open faster and allow for increased coolant flow. This helps lower the temperature of the coolant more quickly when it gets hot, maintains a steady temperature, and reduces strain on the water pump impeller. We highly recommend these thermostats, especially when upgrading your water pump and other components in your cooling system.

Includes:

  • 1x Thermostat that opens at 185º
  • 1x Thermostat that opens at 180º

Notes: 

  • Sold as a set
  • The oil filler tube and upper coolant pipe seals are not included. They are highly recommended to be replaced during a thermostat replacement to prevent leaks.

Replaces Part#:

  • GM 97241129
  • GM 97241130


Customer Reviews

Based on 10 reviews
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R
RockinB

My temps bounce between 190s and 186 / 187. Not happy with them.

Thanks for the feedback. What you’re seeing is normal thermostat operation. A thermostat opens and closes to regulate engine temperature rather than holding it at one fixed number. Under load, when the engine is generating more heat, it’s normal to see higher temperatures. When the load is reduced and less heat is being produced, the thermostat cycles and the temperature comes back down. Small fluctuations like the range you’re describing are expected and indicate the cooling system is working as designed.
If you still feel this is not normal, please reach out to our support team at 877-469-3629.

T
Tim Hund
Arrived quickly

Arrived quickly, worked as it should, very affordable.

C
Calvin Chang
These thermostats seems to do as advertised

These thermostats seems to do as advertised. So far, it worked well with the new reman OEM turbo. The engine light is gone. Hope it'll last. Very fast shipping!

N
Nicholas

Works great

A
Anonymous
Great product for the price compared to the GM

Great product for the price compared to the GM one. My LB7 heats up fast and stays right at normal temp even at high altitudes and harsh driving.