Genuine Motorcraft DY-415 Ported Vacuum Switch (NOS)

Restore the emissions control system of your classic Ford with this genuine Motorcraft DY-415 Ported Vacuum Switch (PVS). This is a vintage New Old Stock (NOS) part, manufactured in the USA. It features high-quality vintage brass and plastic construction designed to accurately route vacuum based on coolant temperature.

This part is designed for the Thermostat Housing / Intake Manifold position on specific 1983-1988 Ford, Mercury, and Lincoln vehicles.

Key Features:

• Part Number: DY-415 (Motorcraft)
• Interchange Part: Ford E3SZ-8A564-A
• Position: Coolant Vacuum Switch (3-Port)
• Function: Thermal Vacuum Control (EGR/Distributor)
• Origin: Made in USA (Vintage Stock)
• Condition: NOS (New Old Stock)

Verified Vehicle Fitment:

Make	Model	Year	Engine	Notes
Ford	Thunderbird	1983-1988	3.8L V6 / 5.0L V8	PVS Switch
Mercury	Cougar	1983-1988	3.8L V6 / 5.0L V8	PVS Switch
Lincoln	Continental / Mark VII	1984-1988	5.0L V8	PVS Switch

Fits Years:

1983 1984 1985 1986 1987 1988

Product Note: Vintage Stock Photos

This listing uses stock images for reference. Because these are NOS (New Old Stock) parts manufactured decades ago, the item you receive may have cosmetic differences from the photo, such as:

• Packaging: Box styles, colors, or condition may vary (or item may be bulk packed).
• Finish: Materials, colors, or plating may vary between production runs.
• Shelf Wear: Minor cosmetic signs of age are normal for vintage parts.

Rest assured, the Part Number (DY-415) is verified to be 100% correct.

Unbeatable Prices & Expectations

We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our prices are often significantly lower than major competitors.

Please Note: While we verify fitment to the best of our ability using vintage catalogs, there can be variations. We strongly recommend comparing our photos and specs to your original part before purchasing.