How to service the thermostat on a 3.0L engine on Mercury Milan?

When repairing the thermostat of a 3.0L engine, pull the vehicle into neutral using a hoist, drain the cooling system and remove the upper radiator hose. Take off the thermostat housing cover, check and change the O-ring as necessary, install the new thermostat and refill the cooling system.

How to service the thermostat and thermostat housing assembly for the 2.3L engine on Mercury Milan?

In order to service the thermostat and housing on the 2.3L engine, lift the vehicle, empty the cooling system and remove the accessory drive belt. Loosen hoses, take off the housing bolts and throw away the old gasket. Install the new housing and new gasket, screw-clamp bolts 10 Nm and re-fill cooling system.

OEM Mercury Milan Thermostat

Engine Coolant Thermostat

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2 Thermostats found

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Mercury Milan Thermostat Housing Part Number: 3M4Z-8575-B
$30.23 MSRP: $48.00
You Save: $17.77 (38%)
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat Kit; Thermostat Housing Cover; Thermostat Integral; Thermostat, Coolant; Thermostat Unit; Thermostat; Engine Coolant Thermostat
- Replaces: 3M4Z-8575-A, 3M4Z-8575-AB
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2011 Mercury Milan | Base, Hybrid, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Milan Thermostat Part Number: 1X4Z-8575-EB
$9.73 MSRP: $15.45
You Save: $5.72 (38%)
Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Replaces: 1X4Z-8575-EA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2011 Mercury Milan | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS

Mercury Milan Thermostat

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Mercury Milan Thermostat Parts and Q&A

Thermostat
1X4Z-8575-EB
Q: How to service the thermostat on a 3.0L engine on Mercury Milan?
A: When repairing the thermostat of a 3.0L engine, pull the vehicle into neutral using a hoist, drain the cooling system and remove the upper radiator hose. Take off the thermostat housing cover, check and change the O-ring as necessary, install the new thermostat and refill the cooling system.
Thermostat Housing
3M4Z-8575-B
Q: How to service the thermostat and thermostat housing assembly for the 2.3L engine on Mercury Milan?
A: In order to service the thermostat and housing on the 2.3L engine, lift the vehicle, empty the cooling system and remove the accessory Drive Belt. Loosen hoses, take off the housing bolts and throw away the old gasket. Install the new housing and new gasket, screw-clamp bolts 10 Nm and re-fill cooling system.