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Restore the proper ignition timing curve of your classic Ford with this genuine Motorcraft DY-207 Distributor Vacuum Check Valve. This is a vintage New Old Stock (NOS) part, manufactured in the USA. It is a critical emissions component that delays or retains vacuum to the distributor advance unit for improved driveability and emissions compliance.
This part is designed for the Distributor Vacuum Line on specific 1977-1983 Ford, Lincoln, and Mercury vehicles.
| Make | Model | Year | Engine | Notes |
| Ford | LTD / Thunderbird / Granada | 1977-1983 | All | Spark Delay Valve |
| Mercury | Marquis / Cougar / Monarch | 1977-1983 | All | Spark Delay Valve |
| Lincoln | Versailles / Continental | 1977-1980 | All | Spark Delay Valve |
1977 1978 1979 1980 1981 1982 1983
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:
Rest assured, the Part Number (DY-207) is verified to be 100% correct.
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.