DIESELR Stainless Steel Header Manifolds (1999-2003 Powerstroke 7.3L)

Dieselr Stainless Steel Exhaust Manifolds | Ford Powerstroke 7.3L (1999–2003). The Dieselr Stainless Steel Exhaust Manifolds** are direct-fit replacements for the factory cast iron manifolds found on 1999–2003 Ford 7.3L Powerstroke engines. Factory manifolds are well known for cracking after repeated thermal cycles, leading to exhaust leaks, reduced efficiency, and unnecessary engine bay noise. Manufactured from premium stainless steel, these manifolds are engineered to withstand the heat and stress of daily driving, towing, and heavy-duty use. Reinforced in the areas where OEM manifolds commonly fail, they provide a durable long-term replacement without compromising factory fitment. Unlike many aftermarket alternatives, each manifold is equipped with an integrated exhaust back pressure (EBP) sensor bung, allowing direct compatibility with the factory EBP sensor. No adapters or fabrication are required.

Features

• Direct-fit replacement for factory exhaust manifolds
• Premium stainless steel construction for improved durability
• Reinforced in common OEM failure areas to resist cracking
• Integrated exhaust back pressure (EBP) sensor bung
• Corrosion-resistant finish for long service life
• Quality inspected before shipment

What's Included

• (2) Stainless steel exhaust manifolds
• (2) Manifold-to-cylinder head gaskets
• (4) Manifold-to-exhaust pipe flange studs
• (4) Manifold-to-exhaust pipe flange nuts

Vehicle Fitment

• 1999–2003 Ford F250 7.3L Powerstroke Diesel
• 1999–2003 Ford F350 7.3L Powerstroke Diesel
• 1999–2003 Ford F450 7.3L Powerstroke Diesel

Interchange Part Numbers

• F81Z9431AA
• F81Z 9431 AA
• F81Z9430AA
• F81Z 9430 AA

Built to address the weaknesses of the factory manifolds while maintaining straightforward installation, these stainless steel replacements provide a reliable solution for long-term service on the 7.3L Powerstroke platform.