1-4 DAYS DELIVERY
Mishimoto MMTS-JGC-99L Racing Thermostat for 99-10 Jeep Grand Cherokee 3.7L/4.7L
100% ORIGINAL AND QUALITY
60 DAYS RETURNS
- Description
- Shipping and Refund
- Reviews
Jeeps are well known for their reliability, durability, and longevity. Keep your Jeep on the road and running cool by upgrading to the Mishimoto racing thermostat specifically engineered for the Jeep Grand Cherokee with 3.7L/4.7L engines. Mishimoto racing thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature racing thermostat will open at a lower temperature (180°F) compared to standard thermostats (195°F). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether your Jeep takes you to work every day or on a trail ride through the mountains, the Mishimoto racing thermostat will keep your engine running cool.
SPECIFICATIONS
- Mishimoto MMTS-JGC-99L Racing Thermostat for 1999-2010 Jeep Grand Cherokee 3.7L/4.7L.
- Fits the 1999‚¬€œ2010 Jeep Grand Cherokee 3.7L/4.7L
- Activates at lower temperature so coolant flows through system earlier
- Allows for cooler engine temperatures
- Engine Codes: 3.7L PowerTech
- OEM Activation Temp C: 90.5
- OEM Activation Temp F: 195
- Mishimoto Activation Temp (Fahrenheit): 180
- Mishimoto Activation Temp (Celsius): 82
FITMENT
- 2007€“2009 Chrysler Aspen 4.7L
- 2000€“2011 Dodge Dakota 3.7L/4.7L
- 2000€“2009 Dodge Durango 3.7L/4.7L
- 2007€“2011 Dodge Nitro 3.7L
- 2002€“2013 Dodge Ram 1500 3.7L/4.7L
- 2006€“2010 Jeep Commander 3.7L/4.7L
- 1999€“2010 Jeep Grand Cherokee 3.7L/4.7L
- 2002€“2012 Jeep Liberty 3.7L
- 2006€“2009 Mitsubishi Raider 3.7L/4.7L
SHIPPING
- We do our best to ship most items same or next day.
- For all products, free fast delivery of the UPS is already included in the price.
Shipping & Processing Time
All in-stock orders are processed and shipped within 1 business day (excluding weekends and holidays).
Delivery typically takes 2–5 business days, depending on the destination. We ship from multiple warehouses across the United States, which allows us to deliver orders as quickly as possible.
Please note that delivery times are estimates provided by the carrier and are not guaranteed.
Shipping Carriers
Most orders are shipped via UPS Ground or FedEx, depending on the size and weight of the item.
Some large or oversized items may be shipped via SAIA or other freight carriers.
Carrier selection is determined automatically at the time of shipment.
Tracking Information
Once your order has shipped, a tracking number will be emailed to the email address provided at checkout.
Tracking information usually becomes active within 1 business day after shipment, depending on the carrier.
Where Is My Order?
When tracking information is provided, this means your order has been processed and shipped.
Carriers such as UPS and FedEx provide point-in-time tracking, meaning updates occur as the package is scanned during transit.
Most orders arrive within 2–5 business days. If your order does not arrive within the estimated timeframe, please contact us and we will be happy to assist.
Delivered Packages & Theft
Once an order is marked as Delivered by the carrier to the address provided at checkout, the order is considered successfully fulfilled.
We are not responsible for lost or stolen packages after delivery, including cases of mail theft.
If your tracking shows “Delivered” but you did not receive the package, we recommend:
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Checking around your property and with neighbors
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Contacting the carrier to file a missing or stolen package claim
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Filing a police report for mail theft (if applicable)
If the carrier provides written confirmation of delivery error, please contact us and we will review the case.
Signature Requirement
Signature confirmation is not required by default for orders under $200.
If you would like to add signature confirmation to your shipment, please contact us before placing your order. Additional fees may apply.
Incorrect Shipping Address
Customers are responsible for providing an accurate and complete shipping address at checkout.
We are not responsible for orders delivered to an incorrect address provided by the customer.
Cancellations
Order cancellations are free of charge as long as the order has not yet shipped.
Please contact us as soon as possible if you need to cancel your order. Once an order has shipped, it cannot be canceled.
Contact Us
If you have any questions regarding shipping, delivery, or your order, please contact us and we will be happy to help.





