Details

• Brand:

  

  

• SKU:

  W716011-S430

• Positions: Left, Right
• Other Names:

  Exhaust Manifold Nut, Catalytic Converter Nut, Nut

• Description:

  This is a genuine Ford catalytic converter nut, a high-temperature nut built on the HN1 base used to secure the catalytic converter and exhaust manifold connections. Ford dealer catalogs list it under several names including Catalytic Converter Nut, Exhaust Manifold Nut, Manifold-with-Converter Nut, and Catalyst-to-Cylinder-Head Nut, all referring to the same fastener, and it is named in a Ford emission recall catalyst replacement kit. It threads onto a stud to clamp the converter or manifold connection firmly so the joint stays sealed against the high heat and constant thermal cycling of the exhaust system. This is a single-use high-temperature fastener: it should be replaced rather than reused whenever the joint is opened, because heat and corrosion degrade the threads and clamp load. You will find it used across a wide range of Ford and Lincoln applications including Explorer, Flex, Police Interceptor Sedan and Utility, Continental, MKS, MKT, and MKX with 3.5L and 3.7L engines, with applications spanning a broad range of model years. These are representative examples rather than a complete list. A loose, missing, or corroded converter nut lets the joint loosen, which causes exhaust leaks, a ticking or hissing noise, an exhaust smell, and possible emission faults. Because this is a torque-sensitive, single-use exhaust fastener, always replace it with the correct genuine nut and torque it to the Ford specification. Confirm the correct nut for your specific vehicle and engine against your VIN before ordering.

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