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Mercury 7L3Z-8575-B Thermostat Assembly

2002-2010 Mercury Mountaineer 7L3Z8575B

Customer Questions & Expert Answers (3)
7L3Z-8575-B Ford Thermostat Assembly Product Photo 1 of 4
  • Replaced By
    7L3Z-8575-E
  • Manufacturer
    Ford
Make sure this part fits
$22.11 MSRP: $35.82
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Mercury
    Manufacturer Part Number7L3Z-8575-B, 7L3Z8575B
    Part DescriptionThermostat Assembly
    Item Dimensions3.9 x 2.3 x 2.4 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerFord
    SKU7L3Z-8575-B
    WarrantyThis genuine Ford part is guaranteed by Ford's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2002-2010 Mercury Mountaineer8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI5-Speed Automatic Transmission 5R55S, 5-Speed Automatic Transmission 5R55W, 5-Speed Manual Transmission (M5R4), 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Right Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
  • Customer Questions & Expert Answers

    Q:
    Does the PN fit my vehicle?
    A:
    You can Select Your Vehicle to check if 7L3Z-8575-B fits your vehicle.
    Posted and answered by Ford Parts Specialist Sonny
    Q:
    How do you remove the radiator hose and Thermostat for the 2011 Ford F-150? Posted by Figueroa C.
    A:
    Loosen the hose clamp, and if the hose is stuck, twist it to break the seal. If it's old or deteriorated, cut it off and install a new one. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist John / Oct 29, 2025
    Q:
    What are the steps to replace a Thermostat in the 2010 Ford Mustang cooling system? Posted by Clyde E.
    A:
    Disconnect the negative battery cable and drain the cooling system.Locate the thermostat housing in the engine.Remove necessary components to access the thermostat housing.Detach the radiator hose and remove the thermostat housing cover. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Ford Parts Specialist Jack / Aug 07, 2023

Genuine Ford Part 7L3Z-8575-B, the Right Choice

To ensure reliability, purchase part # 7L3Z-8575-B Thermostat Assembly. It is also called Thermostat. OEM parts are of high quality and known for their longevity. This is because they are built to the Ford standards which are relatively high and undergo rigorous quality control testing. This part fits specific Mercury Mountaineer models.

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