How to service the thermostat on a 4.0L SOHC engine on 2008 Mercury Mountaineer?

The service procedure for the 4.0L SOHC thermostat begins with draining the engine cooling system. First remove the clamp then disconnect the upper radiator hose from the thermostat housing cover. The thermostat housing cover requires its bolts to be removed while tightening the bolts to 10 Nm (89 lb-in) before reinstalling. The thermostat removal process allows you to examine the O-ring seal on the thermostat housing cover where you can decide to install a new replacement if needed. The installation of the new thermostat and housing cover will begin following the reverse order of removal steps.

OEM 2008 Mercury Mountaineer Thermostat

Engine Coolant Thermostat

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2 Thermostats found

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2008 Mercury Mountaineer Thermostat
Part Number: 7L3Z-8575-E
$20.68 MSRP: $32.00
You Save: $11.32 (36%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat; Thermostat, Coolant
- Replaces: 7L3Z-8575-D, 7L3Z-8575-B, AL3Z-8575-B, RT-1196, RT-1230, 3L3Z-8575-AA, 3L3Z-8575-AC, 7L3Z-8575-C, AL3Z-8575-A, RT-1204, RT-1234, RT-1178, RT-1229, RT-1165
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L3Z-8575-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2008 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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2008 Mercury Mountaineer Thermostat
Part Number: 2L2Z-8575-AA
$19.85 MSRP: $31.53
You Save: $11.68 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Replaces: 1L2Z-8575-AA
- Base No.: 8575
- Item Weight: 0.50 Pounds
- Item Dimensions: 3.2 x 2.6 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2L2Z-8575-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2008 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS

2008 Mercury Mountaineer Thermostat

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2008 Mercury Mountaineer Thermostat available at FordPartsDeal.com. You can confidently purchase our OEM 2008 Mercury Mountaineer Thermostat as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2008 Mercury Mountaineer Thermostat Parts Questions & Experts Answers

Q: How to service the thermostat on a 4.0L SOHC engine on 2008 Mercury Mountaineer?
A: The service procedure for the 4.0L SOHC thermostat begins with draining the engine cooling system. First remove the clamp then disconnect the upper radiator hose from the thermostat housing cover. The thermostat housing cover requires its bolts to be removed while tightening the bolts to 10 Nm (89 lb-in) before reinstalling. The thermostat removal process allows you to examine the O-ring seal on the thermostat housing cover where you can decide to install a new replacement if needed. The installation of the new thermostat and housing cover will begin following the reverse order of removal steps.