Heating and Cooling Thermostats, Housings and Fillers

Motorcraft

190°F Thermostat

$35.82

SKU: 3L3Z-8575-AC

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

This thermostat is rated for 190 degrees Fahrenheit, indicating the temperature at which it begins to open to allow coolant to flow to the radiator.
Show original supplier description
The Motorcraft 190 Degree Thermostat is a direct replacement component designed to maintain optimal engine operating temperature. It is rated to begin opening at 190°F, allowing coolant to circulate to the radiator and preventing overheating. This thermostat is recommended for modern engines with computers that utilize coolant temperature to manage fuel, emissions, and other critical systems. It is designed for a wide range of Ford, Lincoln, and Mercury vehicles, including specific models like the Crown Victoria, E-Series Vans, Expedition, F-150, Lincoln Mark LT, and Mercury Grand Marquis. Always verify fitment with your vehicle's specific year, make, model, and engine to ensure compatibility. Proper installation is crucial for the longevity and function of the cooling system. It is recommended to completely drain and flush the system with a suitable flushing agent before installing the new thermostat. Consider replacing radiator hoses and the radiator cap concurrently as part of preventative maintenance to avoid future issues and potential engine damage. Ensure the radiator is refilled with the correct coolant/antifreeze formula as specified in your owner's manual.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMotorcraft
Part Number3L3Z-8575-AC
CategoryHeating and Cooling

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy