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

You must disconnect the battery ground cable together with draining the engine cooling system when servicing the thermostat housing of a 4.0L SOHC engine. You need to disconnect the electrical connector attached to the Engine Coolant Temperature (ECT) sensor before removing the clamp holding the upper radiator hose as well as the heater hose. The bypass hose clamp should be released before lowering the clamp down the hose. The housing requires removal after you detach the thermostat housing bolts. Stepping into reinstallation requires bolt tightening until it reaches 12 Nm (9 ft. lbs.). You should check the thermostat housing O-ring while also installing a replacement if it needs replacement. You need to follow the opposite steps for finishing the installation.

OEM Mercury Mountaineer Thermostat Housing

Engine Coolant Thermostat Housing

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8 Thermostat Housings found

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Mercury Mountaineer Thermostat Housing, Lower Part Number: GL2Z-8592-A
$43.17 MSRP: $62.83
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Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing, Lower; Thermostat Housing Cover; Lower Housing
- Position: Lower
- Replaces: 1L2Z-8592-BB, RH-148, RH-93
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Thermostat Housing, Lower Part Number: 2L5Z-8592-BB
$51.07 MSRP: $74.33
You Save: $23.26 (32%)
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Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing, Lower; Engine Coolant Water Outlet; Thermostat Housing Cover; Connection - Water Outlet; Water Outlet
- Manufacturer Note: Housing For 2 Clip In Style Sensors
- Position: Lower
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Mercury Mountaineer | Base | 6 Cyl 4.0 L GAS
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Mercury Mountaineer Water Outlet, Upper Part Number: 6L2Z-8592-FA
$19.47 MSRP: $28.33
You Save: $8.86 (32%)
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Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing, Upper; Engine Coolant Water Outlet; Upper Housing; Connection - Water Outlet
- Manufacturer Note: Plastic Housing
- Position: Upper
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2006-2010 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Mountaineer Upper Housing Part Number: 2L2Z-8592-AA
$23.93 MSRP: $34.83
You Save: $10.90 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing, Upper; Engine Coolant Water Outlet; Connection - Water Outlet; Engine Coolant Thermostat Housing; Water Outlet
- Position: Upper
- Replaces: 1L2Z-8592-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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Mercury Mountaineer Thermostat Housing Part Number: FOZZ-8592-B
$123.76 MSRP: $186.67
You Save: $62.91 (34%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing; Thermostat Housing Cover; Connection - Water Outlet; Water Outlet
- Replaces: FOZZ-8592-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1999-2001 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS
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Mercury Mountaineer Thermostat Housing Part Number: F6AZ-8592-AB
Product Specifications
- Other Name: Connection Water Outlet; Thermostat Housing Cover; Outlet Assembly; Connection - Water Outlet
- Manufacturer Note: CONNECTOR
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2005 Mercury Mountaineer | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Mountaineer Thermostat Housing Part Number: F5TZ-8592-CA
Product Specifications
- Other Name: Connection - Water Outlet; Thermostat Housing Cover
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1997-1998 Mercury Mountaineer | Base | 8 Cyl 5.0 L GAS
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Mercury Mountaineer Thermostat Housing, Upper Part Number: 7R3Z-8592-A
$25.85 MSRP: $36.67
You Save: $10.82 (30%)
Product Specifications
- Other Name: Connection Water Outlet; Engine Coolant Thermostat Housing, Upper; Engine Coolant Water Outlet; Thermostat Housing Cover; Water Outlet; Thermostat Outlet; Upper Housing; Connection - Water Outlet
- Position: Upper
- Replaces: 6L2Z-8592-DA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005-2010 Mercury Mountaineer | Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS

Mercury Mountaineer Thermostat Housing

OEM Thermostat Housing boasts unmatched quality. Each part goes through full quality checks. They adhere to Mercury's official factory standards. These steps remove flaws and inconsistencies. So you can get Thermostat Housing with long life and a perfect fit. Come to our website and find genuine Mercury Mountaineer parts. We keep a wide inventory of OEM Mountaineer parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

The Mercury Mountaineer Thermostat Housing is an essential part in cooling system of Mercury Mountaineer automobiles that are highly recommended for their efficiency and durability. This Thermostat Housing is very important in housing the thermostat and enabling free circulation of coolant as a measure of avoiding a situation where the engine gets too hot to handle. Especially developed for Mercury Mountaineer models made between the years 1996 and 2010, this Thermostat Housing increases the performance and reliability of the vehicle. The design of the Mercury Mountaineer Thermostat Housing goes hand in hand with the ease that mechanics can gain access of the thermostat thus making the replacement process faster and taking less time on the side of the mechanic. Furthermore the specially located filler neck at the top of the radiator makes it easier to add or even refill the engine coolant and make a positive contribution to the efficiency of the cooling system. The change from single component Thermostat Housing to the more complex integrated version defines major progression in the automobile industry in efforts made to enhance serviceability and efficiency. In this case, in the background of other cars' elements, the Mercury Mountaineer Thermostat Housing can be pointed out in the choice due to the enhanced, steady construction and the decision of the housing, which guarantees effective use throughout the car's exploitation. Being known for its durability, the Mercury Mountaineer Thermostat Housing is one of the most vital parts that would improve the performance of Mercury Mountaineer as provide comfort and safety to those who ride the vehicle. In summary, the Mercury Mountaineer Thermostat Housing is one of those parts which is symbolic for the general Mercury car's quality and exquisite engineering.

Mercury Mountaineer Thermostat Housing Parts and Q&A

Upper Housing
2L2Z-8592-AA
Q: How to service the thermostat housing on a 4.0L SOHC engine on Mercury Mountaineer?
A:
You must disconnect the battery ground cable together with draining the engine cooling system when servicing the thermostat housing of a 4.0L SOHC engine. You need to disconnect the electrical connector attached to the Engine Coolant Temperature (ECT) sensor before removing the clamp holding the upper radiator hose as well as the heater hose. The bypass hose clamp should be released before lowering the clamp down the hose. The housing requires removal after you detach the thermostat housing bolts. Stepping into reinstallation requires bolt tightening until it reaches 12 Nm (9 ft. lbs.). You should check the thermostat housing O-ring while also installing a replacement if it needs replacement. You need to follow the opposite steps for finishing the installation.