Heating and Cooling› Thermostats, Housings and Fillers

Motorcraft

Engine Thermostat Assembly

$15.45

SKU: 1X4Z-8575-EB

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Motorcraft 1X4Z-8575-EB is a genuine OEM engine thermostat assembly designed as a direct replacement for cooling system maintenance. This factory-spec component restores proper engine temperature regulation and is built to meet Ford's quality and durability standards.
Show original supplier description
The Motorcraft 1X4Z-8575-EB thermostat assembly is an original equipment component engineered for precise thermal control within the engine's cooling system. As a genuine Ford replacement, it ensures factory-grade fitment and reliable performance, helping to maintain optimal operating temperatures and preventing issues associated with a stuck-open or stuck-closed thermostat. This thermostat is specifically designed for various 3.0L V6 Ford, Lincoln, and Mercury applications, including the 2003-2012 Ford Escape, 2006-2012 Ford Fusion, 2003-2007 Ford Taurus, 2007-2012 Lincoln MKZ, 2006 Lincoln Zephyr, 2005-2011 Mercury Mariner, 2006-2011 Mercury Milan, and 2003-2005 Mercury Sable. It serves as a direct-fit replacement for part number 1X4Z-8575-EA. Installation requires draining the cooling system and disconnecting the negative battery cable before accessing the thermostat housing. If the engine reaches high temperatures but the lower radiator hose remains cool, this component may be required to resolve the cooling flow restriction. This part is backed by the standard Ford factory warranty.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMotorcraft
Part Number1X4Z-8575-EB
CategoryHeating and Cooling

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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