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Mishimoto MMTS-WRA-87L Racing Thermostat Fits Jeep Wrangler 2.5L/4.0L/4.2L 1987-2006

Mishimoto MMTS-WRA-87L Racing Thermostat Fits Jeep Wrangler 2.5L/4.0L/4.2L 1987-2006

Q: Does this fit other vehicles besides the jeep?

Hello, These fit quite a few vehicles. We have the full list available here: https://mishimoto.com/media/additionalpdfs/mmts-wra-87l-additional-fitments.pdf For additional questions or concerns, please reach out to Support@Mishimoto.com! Thanks, Justin T. Mishimoto Automotive

Q: will this fit a 2004 jeep grand cherokee laredo

Yes, this should fit as long as you have the 2.5L, 4.0L, or 4.2L engine in your vehicle.

Q: Does this fit 92 Dodge Ram d350 diesel 12v Cummins?

No, it will not fit, but this one will: https://www.amazon.com/dp/B09GL3C3Y2?ref=myi_title_dp

Q: I installed this thermostat in my 2003 Jeep wrangler 4.0. I now have p1281 code engine running cold for too long. Has anyone had the same issue?

Yes I had this same issue every winter after replacing my thermostat in my 2003 Jeep wrangler 4.0. I had the check engine light and p1281 code (engine running cold for too long). It was annoying and should be explained in the comments prior to people purchasing the product.

Product ID: 2616982

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Details

Brand
Mishimoto
Model Name
MMTS-WRA-87L
Controller Type
Mechanical
Special Feature
Programmable
Color
Black

🌡️180°F activation temp

🛠️Fits Jeep Wrangler 1987-2006

🛡️Lifetime warranty

Frequently Bought Together

Mishimoto MMTS-WRA-87L Racing Thermostat Compatible With Jeep Wrangler 2.5L/4.0L/4.2L 1987-2006

FEL-PRO 35630 Engine Coolant Thermostat Housing Gasket for Jeep Grand Cherokee

Dorman 902-306 Engine Coolant Thermostat Housing Compatible with Select Dodge / Jeep Models

Description

🌟 Keep your Jeep cool and your edge cooler!

BUILT TO ENDURE - Crafted from durable aluminum with a high-quality seal to withstand extreme towing and warm climates.
PEACE OF MIND GUARANTEED - Backed by Mishimoto’s lifetime warranty—because your engine deserves the best.
DRIVE COOLER LAST LONGER - Lower engine temps reduce wear and boost reliability, keeping your ride performing at its peak.
PERFECT FIT FOR JEEP LEGENDS - Specifically engineered for Jeep Wrangler 2.5L/4.0L/4.2L models from 1987-2006, ensuring seamless installation.
RACE READY COOLING EFFICIENCY - Activates coolant flow at a cooler 180°F vs. standard 195°F for superior engine protection.

The Mishimoto MMTS-WRA-87L Racing Thermostat is a precision-engineered cooling upgrade for Jeep Wrangler models (1987-2006). It activates at a lower temperature (180°F) than OEM parts, promoting earlier coolant flow to reduce engine heat, minimize wear, and enhance reliability—ideal for warm climates and heavy-duty driving. Made from durable aluminum and backed by a lifetime warranty, it’s the ultimate upgrade for performance-focused Jeep owners.

Specifications

Brand	Mishimoto
Model Name	MMTS-WRA-87L
Controller Type	Mechanical knob
Special Feature	Programmable
Color	Black
Specific Uses For Product	Alfa Romeo GTV-6 (1981-1982), Jeep Wrangler (2.5L/4.0L/4.2L)
Temperature Control Type	Manual
Connectivity Technology	None or Not Applicable
Included Components	high-quality thermostat seal
Power Source	Corded Electric
Item Weight	0.09 Kilograms
Material	Aluminum
Shape	Rectangular
Display Type	analog
Control Type	Remote Control
Control Method	Touch
Connectivity Protocol	None or Not Applicable
Mounting Type	Wall Mount
Style	automotive
Backlight	No
Specification Met	Not Obtainable
UPC	748666007598
Global Trade Identification Number	00748666007598
Manufacturer	Mishimoto
Item Weight	3.17 ounces
Product Dimensions	6.35 x 6.35 x 6.35 inches
Item model number	MMTS-WRA-87L
Is Discontinued By Manufacturer	No
Manufacturer Part Number	MMTS-WRA-87L
OEM Part Number	83501426AD
Special Features	Programmable

Have a Question? See What Others Asked

Does this fit other vehicles besides the jeep?

will this fit a 2004 jeep grand cherokee laredo

Does this fit 92 Dodge Ram d350 diesel 12v Cummins?

I installed this thermostat in my 2003 Jeep wrangler 4.0. I now have p1281 code engine running cold for too long. Has anyone had the same issue?

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