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🏎️ mishimoto mmts-ram-99h high-temperature racing thermostat for dodge 5.9l 6.7l cummins 1999-2013: boost performance and reliability! logo

🏎️ Mishimoto MMTS-RAM-99H High-Temperature Racing Thermostat for Dodge 5.9L 6.7L Cummins 1999-2013: Boost Performance and Reliability! Review

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Terrible

Revainrating 1 out of 5Β Β 
RatingΒ 
1.0
🌑️ Engine Cooling & Climate Control, πŸ› οΈ Replacement Parts

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Description of 🏎️ Mishimoto MMTS-RAM-99H High-Temperature Racing Thermostat for Dodge 5.9L 6.7L Cummins 1999-2013: Boost Performance and Reliability!

Direct fit for 1999-2013 Dodge Ram with 5.9L/6.7L Cummins. Higher activation temp restricts coolant flow for quicker engine warm-up. Ideal for use in cold climates. Mishimoto Activation: 205F (96C) / OEM Activation: 190F (87.5C). Mishimoto Lifetime Warranty.

Reviews

Global ratings 3
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Type of review

Revainrating 1 out of 5

Mishimoto Overpriced junk!

$60.00 POS! Installed it, driven 50 miles and the 02 Dodge Diesel never got to 160F let alone 205F! Waste of time, money and antifreeze! The box was labeled correctly and at least the truck didn't overheat!?!?!?!?! Buy something other than Mishimoto. Overpriced rubbish!

Pros
  • Engine Cooling & Climate Control
Cons
  • Expensive

Revainrating 1 out of 5

Bad thermostat design

Bad design. The small retaining clip on the bottom of the thermostat failed within 30 days of installation. Mishimoto guarantees that if I pay for a shipment I have refused. If you're getting $60 for a thermostat, it should be better designed and they should be 100% responsible for their products (shipping included).

Pros
  • Spare parts
Cons
  • Nothing here

Revainrating 1 out of 5

My engine is overheating

Fit 2007.5 6.7 cummins. Easy installation. Terrible design. It failed on a long drive and the coolant temperature rose to 240 degrees. A complete waste of money. The engine is not worth the risk of this Chinese thermostat. Buy OEM. The "C" clip will come loose and the spring behind it can become loose and possibly get stuck in your cooling system or water pump.

Pros
  • Thermostats
Cons
  • Doubtful purchase for the elderly