Details

• Brand:

  

  

• SKU:

  W701441-S300

• Other Names:

  Plug Water Jacket

• Description:

  The W701441-S300 is a genuine Ford engine core plug built on the HP1 base, a press-fit cup plug that seals a machining or core passage in the cylinder head and acts as a freeze plug for the coolant jacket. Dealer catalogs carry it under the dominant name Engine Core Plug, and on diagrams the same service number also appears as a Plug - Water Jacket, with catalog notes citing an M27 size and 2.0L, 2.3L and 2.5L applications including the Lincoln Corsair. Documented sample applications where this exact service number is cataloged include the Ford Explorer, Mustang and Ranger and the Lincoln Continental, MKX and Zephyr, along with the Mercury Mariner and Milan; treat those as representative examples rather than a complete vehicle list, because Ford reuses one core plug across many engines and model years and does not publish a single finite fitment chart for it. The plug presses into a head bore to seal coolant in and is meant to yield before the casting if coolant freezes, giving a controlled failure point. It is installed once and driven out when serviced, so a fresh plug and proper sealer are used on reassembly rather than reusing the old one. A corroded or weeping core plug causes coolant loss and overheating. Because the suffix code denotes a specific diameter and depth, confirm fit for your exact vehicle by VIN before ordering rather than relying on the sample applications above.

• Applications: 2.0L. 2.5L. 2.3L.

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