Mishimoto low-temperature thermostat for the 2018+ Jeep Wrangler JL, Gladiator and Ram 1500 3.6L Pentastar. It replaces the fragile factory plastic housing with a durable aluminum unit and opens at 82°C / 180°F — 15°F earlier than the stock 195°F unit — letting coolant circulate sooner to maintain lower temperatures while crawling, towing, or running in hot climates. Backed by the Mishimoto Lifetime Warranty.
| Type | Low-temp thermostat w/ aluminum housing |
| Activation Temp | 82°C / 180°F (15°F earlier than stock) |
| Engine | 3.6L Pentastar V6 |
| Includes | Cast-aluminum housing |
| Application | 2018+ Jeep Wrangler JL / Gladiator / Ram 1500 3.6L |
| Part Number | MMTS-MOP-18L |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2024 | Dodge | Durango | SXT / GT / Citadel (3.6L) |
| 2020-2025 | Jeep | Gladiator | Sport / Overland / Rubicon / Mojave |
| 2016-2022 | Jeep | Grand Cherokee | Laredo / Limited / Overland / Trailhawk (3.6L) |
| 2018-2025 | Jeep | Wrangler | Sport / Sahara / Rubicon / Willys (incl. Unlimited) |
| 2019-2026 | Ram | 1500 | Tradesman / Big Horn / Lone Star / Laramie / Rebel (3.6L) |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
