How to service the thermostat for the 3.5L engine on Lincoln MKZ?

The service process of a 3.5L engine thermostat starts by emptying the cooling system fluid. Start by removing the air cleaner along with the outlet pipe before disconnecting the lower radiator hose from the thermostat housing cover. Keep the hose safely to one side. The two housing cover bolts and O-ring seal and thermostat must be removed together from the housing. The O-ring seal needs cleaning inspection until additional replacement with a new one becomes necessary. Clean engine coolant should be applied to the O-ring seal before you install the new thermostat and fasten the housing cover bolts to 10 Nm (89 lb-inch). To complete the procedure install all components then fill and bleed the cooling system.

OEM Lincoln MKZ Thermostat

Engine Coolant Thermostat

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6 Thermostats found

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Lincoln MKZ Thermostat Housing
Part Number: FR3Z-8575-A
$40.52 MSRP: $64.35
You Save: $23.83 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat Kit; Thermostat Housing Cover; Thermostat Unit; Thermostat; Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2020 Lincoln MKZ | Base, Black Label, Premiere, Reserve, Reserve I, Reserve II, Select | 4 Cyl 2.0 L GAS
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Lincoln MKZ Thermostat
Part Number: DS7Z-8575-B
$25.69 MSRP: $40.80
You Save: $15.11 (38%)
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Replaced by: DS7Z-8575-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2013-2020 Lincoln MKZ | Black Label Hybrid, Hybrid, Premiere Hybrid, Reserve Hybrid, Reserve I Hybrid, Reserve II Hybrid, Select Hybrid | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV)
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Lincoln MKZ Thermostat Housing
Part Number: CJ5Z-8575-A
$39.59 MSRP: $62.87
You Save: $23.28 (38%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat Kit; Thermostat Housing Cover; Thermostat Unit; Thermostat; Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2013-2016 Lincoln MKZ | Base, Black Label | 4 Cyl 2.0 L GAS
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Lincoln MKZ Thermostat Housing
Part Number: 3M4Z-8575-B
$32.93 MSRP: $52.29
You Save: $19.36 (38%)
Ships in 1 Business Day
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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:
- 2011-2012 Lincoln MKZ | Hybrid | 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Lincoln MKZ Thermostat
Part Number: BR3Z-8575-F
$23.01 MSRP: $35.60
You Save: $12.59 (36%)
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Replaces: BR3Z-8575-C, RT-1217, BR3Z-8575-E, RT-1227
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2017-2020 Lincoln MKZ | Black Label, Reserve, Reserve II, Select | 6 Cyl 3.0 L GAS
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Lincoln MKZ Thermostat
Part Number: 1X4Z-8575-B
$15.63 MSRP: $24.18
You Save: $8.55 (36%)
Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Replaces: 1X4Z-8575-A, 1X4Z-8575-FA, RT-1228, RT-1172
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2016 Lincoln MKZ | Base, Black Label | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS

Lincoln MKZ Thermostat

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Lincoln MKZ Thermostat Parts Questions & Experts Answers

Thermostat
1X4Z-8575-B
Q: How to service the thermostat for the 3.5L engine on Lincoln MKZ?
A: The service process of a 3.5L engine thermostat starts by emptying the cooling system fluid. Start by removing the air cleaner along with the outlet pipe before disconnecting the lower radiator hose from the thermostat housing cover. Keep the hose safely to one side. The two housing cover bolts and O-ring seal and thermostat must be removed together from the housing. The O-ring seal needs cleaning inspection until additional replacement with a new one becomes necessary. Clean engine coolant should be applied to the O-ring seal before you install the new thermostat and fasten the housing cover bolts to 10 Nm (89 lb-inch). To complete the procedure install all components then fill and bleed the cooling system.