Details

• Brand:

  

  

• SKU:

  W528210-S437

• Other Names:

  Rtv Sealer Plug, Plug

• Description:

  The W528210-S437 is a genuine Ford threaded plug built on the HP1 base, used to seal a service port in the engine's upper oil pan. Dealer catalogs carry it under the dominant name Plug, and the most descriptive listings identify it as the Upper Oil Pan Plug, noting it is included with the upper oil pan assembly and called out twice per engine; some portals also group it generically as an Engine Core Plug. Documented sample applications where this exact service number is cataloged are the 6.7L Power Stroke diesel F-350, F-450 and F-550 Super Duty trucks; treat those as representative examples rather than a complete vehicle list, because Ford reuses one plug across assemblies and model years and does not publish a single finite fitment chart for it. A plug of this type threads into a machined boss to close off an oil passage or drilling in the cast aluminum pan so oil stays contained under pressure; when it is stripped, cross-threaded or left loose it can seep oil and let the level fall, so fitting the correct genuine plug restores a proper, leak-free seal. Because the suffix code denotes a specific thread size, seat and material, confirm fit for your exact vehicle by VIN before ordering rather than relying on the sample applications above.

• Notes: Included with upper oil pan.

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