Will this affect passing smog? I live in California. Smog laws are tight here.

Our thermostats do not have specific CARB EO numbers for smog approval, but should not affect your inspection. Most items that affect that vehicle certification will be related to intake, exhaust and emissions systems, such as aftermarket cold air intakes, intercoolers and piping, and downpipes. As thermostats only adjust the activation temperature on the cooling system, this should have no bearing on the emissions generated by the vehicle. The items we have CARB approval on will be noted with the EO number in their descriptions on the product pages on Mishimoto.com. If you have any other questions, please send an email to support@mishimoto.com and we would be happy to assist further. Thanks, Mishimoto

Will this fit on a 2010 crown Victoria police interceptor?

Thanks for reaching out to us. This thermostat is a direct fit for the 3.0L Duratec 30 V6, 4.6L Modular V8, 5.4L Triton V8, and 6.8L Triton V10. If your vehicle matches this description, this thermostat would work for you. Please send an email to support@mishimoto.com and we would be happy to assist further. Thanks, Mishimoto

Hi, i have a 2002 ford excursion with a 7.3 diesel. will this thermostat fit? what do you recommend for hot weather and heavy towing?

This thermostat will not fit a diesel Excursion as it is designed to fit the Ford modular gasoline engines. For a 7.3L Excursion, we recommend looking into the parts we list for the 1999-2003 Powerstroke trucks as most of these items will transfer over. For towing and hotter climates, we recommend the low-temperature thermostats part/model number MMTS-F2D-96L. If you have any other questions or are interested in any other cooling products for your Excursion, please send an email to support@mishimoto.com and we would be happy to assist further. Thanks, Mishimoto

Mmts Mus 05l Ford Mustang V8 Racing Th

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🔥 Keep your Mustang cool and your engine cooler — race day ready!

PLUG AND PLAY FITMENT - Precision engineered for 2005-2010 Ford Mustang V8 models
PEACE OF MIND WARRANTY - Backed by Mishimoto’s lifetime warranty for ultimate reliability
TRACK TESTED DURABILITY - Built to withstand intense drag strip and road course conditions
ENGINE LONGEVITY BOOSTER - Maintains lower temps to extend your Mustang’s V8 lifespan
RACE READY COOLING EFFICIENCY - Activates at 160°F vs. standard 180°F for quicker engine cooling

The Mishimoto MMTS-MUS-05L Racing Thermostat is a precision-engineered cooling upgrade for 2005-2010 Ford Mustang V8s. It activates coolant flow at a lower temperature (160°F) than OEM parts, reducing engine heat and enhancing performance under racing conditions. Designed for drag strip and road course use, it ensures longer engine life and comes with a lifetime warranty for lasting confidence.

Specifications

ASIN	B00EDZD5DC
Additional Features	Lower Activation Temperature
Backlight	No
Best Sellers Rank	#51,303 in Automotive ( See Top 100 in Automotive ) #55 in Car Engine Thermostats
Brand Name	Mishimoto
Color	Mishimoto MMTS-MUS-05L Ford Mustang V8 Racing Thermostat, 2005-2010
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wi-Fi
Control Method	Touch
Controller Type	Manual
Customer Reviews	4.1 4.1 out of 5 stars (36)
Display Type	digital
Finish Types	Glossy
Global Trade Identification Number	00748666007673
Included Components	Auto part, Automotive Accessories, Replacement and Performance parts
Item Type Name	Ford Mustang V8 Racing Th
Item Weight	0.2 Pounds
Manufacturer	Mishimoto
Material Type	Plastic
Model Name	MMTS-MUS-05L
Model Number	MMTS-MUS-05L
Mounting Type	Surface Mount
Power Source	Battery Powered
Product Style	Modern
Shape	Rectangular
Specific Uses For Product	drag strip racing, road course racing
Temperature Control Type	Automatic
UPC	748666007673

Reviews

E**O

Noticed a slight drop in engine temps. Super easy to install on an 05-09 mustang gt. Relatively inexpensive for some piece of mind. Fits right in however cant remember if it came with a nee gasket or not, just reused the old on i think? Works great tho and havent had any problems in the 6+ months of having it.

11.05.2025

M**L

WORK GOOD

23.07.2025

I**N

Didn't come with a new o-ring

27.02.2026

L**O

Great fit.. Works like a champ.. I installed it on my 2006 Mustan GT..

9.06.2015

S**D

Fit to my Expedition 2013

25.01.2017

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