How to Service and Repair a Thermostat for a 3.7L/4.7L Engine on Jeep Grand Cherokee?

When servicing or repairing the thermostat for the 3.7L/4.7L engine, first clean where the timing chain cover and thermostat meet. After that, mount the thermostat with the side marked by the spring facing into the groove on the timing chain cover. Attach the thermostat housing to the timing chain cover, then tighten the housing-to-timing chain cover bolts to 13 Nm (115 in. lbs.) torque. The housing must be fastened evenly and the thermostat needs to remain in the middle recessed spot to keep the housing from cracking, breaking the threads on the timing chain cover or allowing coolant to leak. Prepare the housing and slide the lower radiator hose onto it, then lip the splash shield in place. Take the vehicle down and top off the cooling fluid. After reattaching the negative battery cable to the battery, start and allow the engine to run for a while while you look for any leaks.

How to Maintain a Thermostat for a 4.0L Engine on Jeep Grand Cherokee?

It is very important to check that the radiator draincock is not turned and that the system is empty before touching the thermostat, as hot and pressurized coolant can seriously injure you. Let the coolant drain into a clean empty container up until the level goes below the thermostat. Use suitable tools made for constant tension hose clamps, for instance, special clamp tool number 6094 or Snap-On clamp tool number HPC-20 for large clamps and be sure to wear eye safety while doing so. Replace constant tension clamps if needed and only use the exact numbered or lettered sources created by the manufacturer. Remove the radiator upper hose and heater hose that are connected at the thermostat housing and afterward disconnect the engine coolant temperature sensor wiring connector. Remove the thermostat housing with bolts, the thermostat housing itself, gasket and thermostat, throw away the old gasket and clean all the contacting surfaces around the gasket and thermostat. While installing, keep the coil spring with pellet in the thermostat facing the engine and align the outer flange arrow and air bleed hole with the engine recess groove. Place the new gasket and housing, then carefully tighten all ends so the housing doesn't crack. Screw the bolts on the housing to a 22 Nm (16 ft. lbs.) torque setting and replace both the hoses on the thermostat housing and the electrical connector on the coolant temperature sensor. Secure the radiator draincock and pour the correct amount of coolant mixture into the cooling system where needed. Also, after you start the engine, watch for signs of leaking oil.

OEM Jeep Grand Cherokee Thermostat

Engine Coolant Thermostat

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9 Thermostats found

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Jeep Grand Cherokee Thermostat Housing Part Number: 68253514AA
$199.41 MSRP: $296.00
You Save: $96.59 (33%)
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Product Specifications
- Other Name: Tstat; Engine Coolant Thermostat Housing; Thermostat and Housing Assembly; Thermostat Housing Cover; Thermostat Unit; Thermostat; Engine Coolant Thermostat
- Replaces: 68211186AB, 68211186AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2014-2019 Jeep Grand Cherokee | High Altitude, Limited, Overland, Summit, Trailhawk | 3.0L V6, 6 Cyl 3.0 L DIESEL
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Jeep Grand Cherokee Thermostat (Not Including Gaskets) Part Number: 52028186AC
$38.42 MSRP: $56.25
You Save: $17.83 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Engine Coolant Thermostat
- Replaces: 52028186AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1997-2004 Jeep Grand Cherokee | Laredo, Limited, Orvis, Special Edition, Sport, TSi | 4.0L V6, 6 Cyl 4.0 L GAS
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Jeep Grand Cherokee Front Cover Part Number: 68174083AA
$44.16 MSRP: $56.85
You Save: $12.69 (23%)
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Product Specifications
- Other Name: Thermostat; Engine Coolant Thermostat Housing Gasket; Engine Coolant Thermostat
- Replaces: 52079476AB, 52079476AC, 52079476AD, 52079476AE
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1999-2010 Jeep Grand Cherokee | 65th Anniversary Edition, Laredo, Limited, Overland, Special Edition, Sport | 3.7L V6, 4.7L V8, 6 Cyl 3.7 L GAS, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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Jeep Grand Cherokee Thermostat Part Number: 52028898AJ
$69.58 MSRP: $91.75
You Save: $22.17 (25%)
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Product Specifications
- Replaces: 52028898AE, 52028898AI
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2023 Jeep Grand Cherokee | High Altitude, Laredo, Limited, Limited X, Overland, Overland Summit, SRT, SRT8, Summit, Summit Reserve, Trackhawk, Trailhawk | 5.7L V8, 6.1L V8, 6.2L V8, 6.4L V8, 8 Cyl 5.7 L GAS, 8 Cyl 6.1 L GAS, 8 Cyl 6.2 L GAS, 8 Cyl 6.4 L GAS
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Jeep Grand Cherokee Thermostat Housing Part Number: 5048757AA
$143.74 MSRP: $214.00
You Save: $70.26 (33%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat; Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2022-2025 Jeep Grand Cherokee | 30th Anniversary 4xe, 4xe, Anniversary Edition 4xe | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Jeep Grand Cherokee Thermostat Part Number: 52028185AC
$18.30 MSRP: $26.80
You Save: $8.50 (32%)
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Product Specifications
- Other Name: Engine Coolant Thermostat
- Replaces: 52028185AB, 4494469, 52028185
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1993-1998 Jeep Grand Cherokee | 5.9 Limited, Base, Laredo, Limited, Orvis, SE, TSi | 5.2L V8, 5.9L V8, 8 Cyl 5.2 L GAS, 8 Cyl 5.9 L GAS
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Jeep Grand Cherokee Thermostat Housing Part Number: 53010923AB
$56.08 MSRP: $83.55
You Save: $27.47 (33%)
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Product Specifications
- Other Name: Housing - Thermostat; Engine Coolant Thermostat Housing; Thermostat Housing Cover; Housing Thermostat
- Replaces: 53010923AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2021 Jeep Grand Cherokee | Trackhawk | 6.2L V8, 8 Cyl 6.2 L GAS
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Jeep Grand Cherokee Thermostat Housing Part Number: 4893926AH
$72.99 MSRP: $96.20
You Save: $23.21 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat; Engine Coolant Thermostat Housing; Engine Coolant Thermostat Kit; Thermostat Housing Cover
- Replaces: 4893926AD, 4893926AG, 4893926AF
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2016-2022 Jeep Grand Cherokee | 75th Anniversary, 80th Anniversary, Altitude, High Altitude, Laredo, Laredo E, Laredo X, Limited, Limited X, Overland, Summit, Summit Reserve, Trailhawk, Upland | 3.6L V6, 6 Cyl 3.6 L FLEX
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Jeep Grand Cherokee Thermostat Part Number: 83501426AD
$34.16 MSRP: $49.20
You Save: $15.04 (31%)
Product Specifications
- Other Name: Thermostat - Engine Coolant; Engine Coolant Thermostat
- Replaces: 83501426AC, 52001797
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1993-1996 Jeep Grand Cherokee | Base, Laredo, Limited, Orvis, SE | 6 Cyl 4.0 L GAS

Jeep Grand Cherokee Thermostat

Choose OEM Thermostat that meet Jeep factory standards. Jeep designs and tests every component for precision and durability. Each Thermostat follows strict manufacturing steps to lock in quality and fit. If your Jeep Grand Cherokee matters to you, OEM parts make the smart choice. You'll get the exact look, feel, and performance you expect. Shop genuine Grand Cherokee parts at the highly competitive prices online. Enjoy a manufacturer's warranty, a hassle-free return policy, and rapid delivery. No more guesswork with off brands. Get genuine parts with exact fit and true factory performance. Shop with confidence today at JeepPartsDeal.com.

The Thermostat is, therefore, a very important component of Jeep Grand Cherokee motor vehicles as it helps in controlling temperature in the engine to an optimal level. Mounted close to the radiator and directly controlling the flow of coolant which is a closed loop control system, the Thermostat works to achieve the desired temperature. Through the years, various kinds of Thermostats has been installed in Jeep Grand Cherokee models, be it the simple bimetallic strips and even wax pellet thermostats. These devices work on the principle of change in their sizes as a result of heat so as to regulate temperature on engines. These kinds of Thermostats have improved the functionality and durability of the Jeep Grand Cherokee's cooling system thus improving the vehicles performance and comfort.

Jeep Grand Cherokee Thermostat Parts and Q&A

Thermostat
52028898AJ
Q: How to Service and Repair a Thermostat for a 3.7L/4.7L Engine on Jeep Grand Cherokee?
A:
When servicing or repairing the thermostat for the 3.7L/4.7L engine, first clean where the timing chain cover and thermostat meet. After that, mount the thermostat with the side marked by the spring facing into the groove on the timing chain cover. Attach the Thermostat Housing to the timing chain cover, then tighten the housing-to-timing chain cover bolts to 13 Nm (115 in. lbs.) torque. The housing must be fastened evenly and the thermostat needs to remain in the middle recessed spot to keep the housing from cracking, breaking the threads on the timing chain cover or allowing coolant to leak. Prepare the housing and slide the lower radiator hose onto it, then lip the splash shield in place. Take the vehicle down and top off the cooling fluid. After reattaching the negative battery cable to the battery, start and allow the engine to run for a while while you look for any leaks.
Front Cover
68174083AA
Q: How to Maintain a Thermostat for a 4.0L Engine on Jeep Grand Cherokee?
A:
It is very important to check that the radiator draincock is not turned and that the system is empty before touching the thermostat, as hot and pressurized coolant can seriously injure you. Let the coolant drain into a clean empty container up until the level goes below the thermostat. Use suitable tools made for constant tension hose clamps, for instance, special clamp tool number 6094 or Snap-On clamp tool number HPC-20 for large clamps and be sure to wear eye safety while doing so. Replace constant tension clamps if needed and only use the exact numbered or lettered sources created by the manufacturer. Remove the radiator upper hose and heater hose that are connected at the Thermostat Housing and afterward disconnect the engine Coolant Temperature Sensor wiring connector. Remove the thermostat housing with bolts, the thermostat housing itself, gasket and thermostat, throw away the old gasket and clean all the contacting surfaces around the gasket and thermostat. While installing, keep the coil spring with pellet in the thermostat facing the engine and align the outer flange arrow and air bleed hole with the engine recess groove. Place the new gasket and housing, then carefully tighten all ends so the housing doesn't crack. Screw the bolts on the housing to a 22 Nm (16 ft. lbs.) torque setting and replace both the hoses on the thermostat housing and the electrical connector on the coolant temperature sensor. Secure the radiator draincock and pour the correct amount of coolant mixture into the cooling system where needed. Also, after you start the engine, watch for signs of leaking oil.