Product Description
Genuine Motorcraft RT-1101 Thermostat (NOS)
Restore the precise thermal management and factory-correct operating temperature of your Ford or Mercury engine with this genuine Motorcraft RT-1101 Thermostat. This authentic New Old Stock (NOS) component, also identified by Ford engineering part number F5RZ-8575-A, is the critical valve responsible for regulating coolant flow through the radiator. Engineered specifically for the 2.0L 4-cylinder platforms, this thermostat ensures your engine reaches its optimal performance temperature quickly and stays there, protecting internal components and ensuring efficient fuel economy. Manufactured in the USA to original factory specifications, it is a direct-fit restoration part for 1995-2004 Ford Contour, Focus, Escort ZX2, and Mercury Mystique models. Using original Motorcraft cooling components guarantees the exact temperature calibration and seal fitment required for a high-quality restoration.
Key Features:
- Brand: Motorcraft
- Part Number: RT-1101
- OEM Number: F5RZ-8575-A
- Part Type: Engine Coolant Thermostat
- Engine Fitment: 2.0L Inline-4 (I4)
- Origin: Made in USA
- Condition: New Old Stock (NOS)
Verified Vehicle Fitment:
| Make | Model | Year | Engine |
|---|---|---|---|
| Ford | Contour / Focus / Escort ZX2 | 1995-2004 | 2.0L L4 |
| Mercury | Mystique / Cougar | 1995-2002 | 2.0L L4 |
Fits Years:
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these parts may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
