My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Mishimoto MMTS-WRA-03L Racing Thermostat for 2003-2011 Jeep Wrangler TJ/JK 2.4L/3.8L

(Jeep Wrangler 2003-10, Liberty 2002-05; Nissan Pathfinder 2013-19; Mini Cooper 2002-08; Chrysler Town & Country 1993-2010, PT Cruiser 2001-10 + 34 more models)

Manufacturer

Picture for manufacturer Mishimoto

Part Number

MMTS-WRA-03L
17 reviews
Sale Price

$68.95

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Mishimoto MMTS-WRA-03L racing thermostat is specifically engineered for 2003-2011 Jeep Wrangler TJ and JK models equipped with 2.4L or 3.8L engines. This performance thermostat enhances cooling system efficiency by opening at a lower temperature than stock thermostats, helping to reduce engine temperatures during highway driving, off-road adventures, and extreme operating conditions.

Key Features:

  • Low-temperature activation at 180°F compared to the factory 195°F thermostat
  • Promotes earlier coolant flow through the engine for improved temperature management
  • Reduces engine operating temperatures and thermal stress
  • Helps decrease engine wear and improve long-term reliability
  • Direct-fit replacement for 2003-2011 Jeep Wrangler TJ/JK 2.4L and 3.8L engines
  • Backed by Mishimoto's lifetime warranty

By allowing coolant to circulate sooner once the engine reaches operating temperature, this racing thermostat maintains lower and more consistent engine temperatures. This is particularly beneficial for Wranglers used in demanding conditions such as rock crawling, desert running, or towing, where sustained high loads can elevate engine temperatures beyond factory cooling system capabilities.

Products specifications

Fits

Jeep Wrangler 2003-10, Liberty 2002-05; Nissan Pathfinder 2013-19; Mini Cooper 2002-08; Chrysler Town & Country 1993-2010, PT Cruiser 2001-10, Pacifica 2007-08, Sebring 1995-2010, New Yorker 1993-96, Imperial 1993, Concorde 1993-97 + 29 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Aluminum

TechSpec Includes

(1) Mishimoto Thermostat--Mishimoto Lifetime Warranty

TechSpec Mishimoto Activation Temperature (F)

180

TechSpec Engine Codes

1.6L Tritec--2.0L I4--2.0L 420A--2.4L EDZ--2.4L PowerTech--3.3L EGA--3.5L EGJ--3.8L EGH--4.0L EGQ--4.0L SOHC

Install Difficulty

2

The ordering process was pretty straight forward & simple. Searching for tires on the other hand was a bit more complicated, as the search filters didn't work so well. Shipping was fast, but there was a typo on the shipping label that caused a delay. This is what necessitated the call to customer service to correct that. Nothing bad, as we're only human, but was easily fixed with the phone call.

Everything was good

I would use them again

got what I expected

SHIPPING FOR SUCH A SMALL ITEM IS MORE THAN THE ITEM ITSELF, THATS JUST WRONG!

A+ parts, price and service. Top notch!

Fast delivery! Box a little shuffled but radiator was packaged well and seem to be OK. So far very satisfied. Haven't installed yet but will update feedback if need be. Thanks for the fast service!

A very satisfactory experience. The price I paid was the lowest I found on the internet for this product. Ordering was easy, and without hassle. My order was shipped promptly and arrived sooner than I expected. Order date to receipt was only 6 days

Simple and fast

Great Prices Gast Easy Site To Use

Found the item via Amazon, at a lower price than Amazom, and Paid via my Amazon account. Quick, easy, and less expensive. I shall return!

So easy and quick.

No immediate info as to if this is in stock and will arrive in 2 days as I paid the addtl34.

i ordered on a weekend so there was an unexpected one day delay on the shipping, website did not update the shipping when i called shipping did not answer but emailing got a quick response and an appology, i ordered on a sunday 3/4/12 recived my hella supertone horns today 3/12 i kind of wished they put some bubble wrap or something inside the box that they shipped in tho. i installed them already and they work like a dream

Great. I need this item shipped to an address other than my confirmed paypal address. I need it shipped to BFNY Performance 9515 Detroit Rd. Cleveland, Ohio 44102 Phone 440-787-7235 ^^^ SEE ABOVE NOTE When checking out it wouldn't let me change the shi

Saved almost 50 % off summit racing price for air cleaner. Fast shipper , great communications. Shop here first.

Very low price, fast shipping, good customer service. Product perfectly fit my needs and saved me time and money. Recommend!!!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy