Mishimoto direct-fit replacement thermostat for the 2012-2018 Jeep Wrangler JK 3.6L Pentastar (and related Grand Cherokee / Durango 3.6L). It opens at the near-stock 90°C / 194°F to maintain proper coolant flow and comes with an upgraded aluminum housing and galvanized-steel bleeder screw for durability and leak prevention. Backed by the Mishimoto Lifetime Warranty.
Specifications
| Type | Direct-fit thermostat w/ aluminum housing |
| Activation Temp | 90°C / 194°F (near stock) |
| Engine | 3.6L Pentastar V6 |
| Includes | Aluminum housing + bleeder screw |
| Part Number | MMTS-WRA-12E |
| Warranty | Lifetime |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2015 | Dodge | Durango | SXT / Citadel / Limited (3.6L) |
| 2011-2015 | Jeep | Grand Cherokee | Laredo / Limited / Overland (3.6L) |
| 2012-2018 | Jeep | Wrangler | Sport / Sahara / Rubicon (incl. Unlimited) |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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