Details

• Brand:

  

  

• SKU:

  W701706-S430

• Positions: Left, Right
• Other Names:

  Exhaust Manifold Nut, Exhaust Pipe Nut, Heat Shield Nut, Turbocharger Nut, Nut Hex Flanged

• Description:

  The W701706-S430 is a genuine Ford flanged hex nut used to retain the exhaust manifold to its mounting studs, with the integral flange spreading clamp load against the manifold flange. Dealer catalogs carry it under the dominant name Manifold Nut in the exhaust manifolds and headers section, and on diagrams it is also written as a Nut - Hex. - Flanged, in left and right positions, with notes covering 3.0L, 3.5L and 6.7L applications. Documented sample applications where this exact service number is cataloged include the Ford Explorer, F-150 and Mustang and the Lincoln MKX, Nautilus and Navigator, along with the Mercury Mariner and Milan; treat those as representative examples rather than a complete vehicle list, because Ford reuses one manifold nut across many engines and model years and does not publish a single finite fitment chart for it. Ford specifies that this nut cannot be reused or reinstalled: once it has been torqued and heat-cycled it must be replaced with a new one, so it is a single-use fastener. An exhaust manifold nut clamps the flange against high heat and constant thermal cycling; when one is loose, seized or missing, the manifold can leak exhaust, tick on cold start, or warp. Because the suffix code denotes a specific thread size, material and finish, confirm fit for your exact vehicle by VIN before ordering rather than relying on the sample applications above.

• Notes: Part cannot be reused/reinstalled.

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