Product Description
Genuine Motorcraft RR-12 Cooling Fan Relay (NOS)
Ensure your engine maintains optimal operating temperatures with this genuine Motorcraft RR-12 Cooling Fan Relay. This authentic New Old Stock (NOS) component, also identified by Ford engineering part number E5FZ-8B658-H, is a critical electrical switch designed to activate the engine cooling fan based on thermal requirements. Specifically engineered for the 1.6L and 1.9L I4 front-wheel-drive platforms, this relay prevents overheating during idle or low-speed operation. Manufactured in the USA to original factory specifications, it is the correct restoration part for 1983-1990 Ford Escort, EXP, and Mercury Lynx models. Using original Motorcraft electrical components ensures the correct amperage handling and pin configuration required to protect your classic's wiring harness and cooling system.
Key Features:
- Brand: Motorcraft
- Part Number: RR-12
- OEM Number: E5FZ-8B658-H
- Interchange: RR12, E5FZ-8B658-B
- Position: Engine Bay / Fan Shroud
- Engine Fitment: 1.6L / 1.9L Inline-4 (I4)
- Origin: Made in USA
- Condition: New Old Stock (NOS)
Verified Vehicle Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Ford | Escort / EXP | 1983-1990 | 1.6L / 1.9L I4 | Electric Fan Models |
| Mercury | Lynx | 1983-1987 | 1.6L / 1.9L I4 | Direct OEM Replacement |
Fits Years:
1983 1984 1985 1986 1987 1988 1989 1990
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.
