Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat, 1987–2006

Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat, 1987–2006
Jeep Wrangler 2.5L/4.0L/4.2L Racing Thermostat, 1987–2006

Regular Price: $31.20

Sale Price $24.95

Installation Difficulty

  • Activates at lower temperature so coolant flows through system earlier
  • Allows for cooler engine temperatures
  • Mishimoto Lifetime Warranty
  • This item also fits additional vehicles. See Tech Specs below.

A performance Jeep deserves performance Jeep Wrangler parts. Mishimoto is proud to release a racing thermostat specifically designed for the 1987–2006 Jeep Wrangler YJ/TJ. Whether you are cruising down the highway or climbing over boulders, an effective cooling system is extremely critical. Mishimoto Jeep Wrangler thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature Jeep Wrangler thermostat will open at a lower temperature (180°F) compared to standard Jeep Wrangler thermostats (195°F). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Decreased temperatures will result in reduced engine wear and improved reliability. As with all our Wrangler parts, this Jeep Wrangler thermostat includes the Mishimoto Lifetime Warranty.

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



OEM Activation Temp C 90°C

OEM Activation Temp F 195°F

Purchase Includes (1) Mishimoto Thermostat
Mishimoto Lifetime Warranty

Mishimoto Activation Temp (Fahrenheit) 180°F

Mishimoto Activation Temp (Celsius) 82°C


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