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Ratstat 170 Performance Thermostat - 4D V1

Ratstat 170 Performance Thermostat - 4D V1

Your Price:$48.99
Retail Price:$69.99
MPT Saves You:$21.00(30%)
Part Number:Ratstat-4DV1

Ratstat 170 Performance Thermostat - 4D V1

Fits the following:
  • 2011-2014 F150 3.7L
  • 2011-2017 F150 5.0L
  • 2011-2014 F150 EcoBoost 3.5L
  • 2015-2017 F150 Ecoboost 2.7L
  • 2011-2017 Mustang 3.7L V6
  • 2011-2017 Mustang GT 5.0L

Heat is known to be a common enemy of power. Keeping both intake and coolant temps low are a good idea on basically every application. The Ratstat 170-degree thermostat will give you the low coolant temperatures needed to get the most out of your Ford vehicle. Having a lower temp thermostat, means coolant flowing earlier and then when coupled with the correct calibration fans kick on earlier as well.

An upgraded thermostat is one of the most commonly recommended products by MPT. Cooler temps allow more consistent power and prevent the power loss associated with hotter temps.

The ratstat includes a 2-year manufacturers warranty.

NOTE: This 170-degree thermostat is smaller and designed differently than the OEM thermostat. This is due to a different gasket being used in the construction of the thermostat. Install as is and it will fit correctly.

To fully take advantage of this upgrade the PCM/ECU will need to be calibrated with an MPT tune. If you already have an MPT Tune, simply submit a new MPT Tune Form telling us what you have installed and your invoice number for the thermostat purchase. Please allow three business days for tunes to be built/updated.
5 Stars
Great product! Easy to install! Took more time to move the intake piping and stuff than to install the thermostat. Truck definitely runs cooler and smoother!
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Amite. on 5/25/2018
5 Stars
shop owner
thermostat worked awesome! we did heads on a 5.0l coyote motor and this therm keep our head temps down and high speed from running all the time. the tech the time to talk to me about it before the we bought it thank you
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from micco fl. on 4/30/2018
5 Stars
Fastest Shipping & Lowest Price!
I live in the sauna that is South Florida, so keeping my engine warm enough is never the issue. I ordered one of these on Tuesday afternoon and it got to my doorstep Thursday afternoon, so it could not have gotten here any faster unless I drove to Longwood myself and picked it up.
Did you find this helpful?  1 of 6 Found Helpful
Reviewed by:  from FLORIDA. on 8/23/2017
4 Stars
had a 190 deg. t/stat,installed a 170 deg. t/stat and lowered the normal operating temp by 15 deg., worth the change over.
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Reviewed by:  from MO. on 9/27/2018
5 Stars
Great product
Great product, works as it is supposed to
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Reviewed by:  from AZ. on 8/24/2018
5 Stars
Ratstat 170 on F150 Ecoboost
This is a great thermostat and keeps the coolant temperatures down. The installation takes a little time due to the location in the engine bay, but it's absolutely worth it. I definitely recommend this addition to your truck.
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Reviewed by:  from OH. on 6/24/2018

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