• 1041473,106030:60629DAB2E07AEBA66421158AE23F87D
  • 1041473,106086:D368C8958C3AEBB308E7463A7D6F380F
  • 1041473,106094:5DDC13A73E48AACBF2F6A6313CD01757
  • 1041473,106110:4F231D3C390009068FCC272676EAB2FB

1041473

EXHAUST MANIFOLD KIT FORD F250-F550 7.3L POWER STROKE 1999-2003

$959.95
$959.95

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Features

  • Cast iron construction 37.5% thicker than OEM for increased strength and reliability during heat cycling, resisting cracking with solid mounting lugs (no undercut)
  • Solid bolt mounting bosses without undercut, removing possibility of cracking
  • Steel OEM style gaskets for dependable seal, rather than failure prone composite type
  • High temp paint for corrosion resistance
  • 14% increase in flow for better transfer of exhaust energy to the turbocharger
  • Pre-drilled for a pyrometer probe for easy install of aftermarket gauges
  • Includes all fasteners and gaskets for a complete package

About This Product

Designed with strength and reliability in mind, the BD Diesel 7.3L Power Stroke exhaust manifolds feature a 37.5% thicker casting wall compared to stock. Combine this with solid mounting lugs that extend all the way to the cylinder head, the BD Manifold will resist cracking and warping. With no compromises, the kit includes steel OEM-style gaskets instead of the common aftermarket composite style known to fail! Blending this robust casting and gasket type with the 14% increase in flow performance allows the venerable 7.3L Power Stroke to breathe like tubular-fabricated manifolds, with the reliability of cast-iron construction. Painted for corrosion resistance, these manifolds are built to last and keep the 7.3L Power Stroke nameplate standing the test of time.

Warranty & Notes

Install Time

INSTALL TIME

  • 5 Hours 12 Minutes

Warranty

WARRANTY

Parts

  • 36-Months
  • 75,000 Miles

Notes

NOTE

  • Not for sale on licensed California vehicles
  • Replaces OEM Part #'s: F81Z-9431-AA (Driver Side), F81Z-9430-AA (Passenger Side)
EXHAUST MANIFOLD KIT FORD F250-F550 7.3L POWER STROKE 1999-2003

$959.95

What makes these BD Diesel manifolds better than the stock Ford ones?

These manifolds are a significant upgrade over stock due to thicker castings, improved exhaust flow, and more durable materials. They are engineered to eliminate the common failure points of the original 7.3L Power Stroke manifolds, such as cracking and leaking. — BD's manifolds feature cast iron walls that are 0.275 inches thick, a 37.5% increase over the factory design, which makes them highly resistant to warping and cracking from heat cycles. They also improve performance by increasing exhaust flow by 14% over stock, helping the turbo spool faster. Unlike the factory design, BD re-engineered the mounting lugs to be solid, extending all the way to the cylinder head to prevent stress fractures. The kit also replaces failure-prone composite gaskets with durable, multi-layer steel gaskets for a more reliable seal.

What is the benefit of the solid mounting lugs on these manifolds?

The solid mounting lugs are a critical design improvement that directly addresses a known failure point in the original Ford manifolds. This feature eliminates the factory undercut, creating a stronger, more reliable connection to the cylinder head that resists stress fractures. — The factory 7.3L Power Stroke exhaust manifolds were designed with an undercut on the mounting bosses, which created a weak point where cracks would commonly form after repeated heat cycles. BD's design uses a solid, continuous mounting lug that provides a much larger contact area and distributes clamping force and thermal stress more evenly. This robust connection prevents the bolt lugs from cracking and breaking off, which is a common cause of exhaust leaks on these engines.

Do I need to drill these manifolds for a pyrometer or EGT gauge?

No, you do not need to drill the manifolds. BD Diesel has pre-drilled and tapped one of the manifolds with a port for an exhaust gas temperature (EGT) probe, also known as a pyrometer. — This built-in port simplifies the installation of aftermarket gauges, which are highly recommended for any modified or hard-working 7.3L Power Stroke. Monitoring EGT is critical for protecting the engine and turbocharger, especially when towing heavy loads. The pre-tapped port saves you the time and risk associated with drilling a cast iron manifold, ensuring a clean, secure, and leak-free probe installation right out of the box.

How difficult is the installation and what's included in the kit?

The installation is moderately difficult, with a typical install time of around 5.2 hours for the complete kit. The kit is designed as a direct, bolt-on replacement and includes all the major components needed. — This is a complete package under part number 1041473. Inside the box, you will find: — • Driver-side exhaust manifold (1041471) • Passenger-side exhaust manifold (1041472) • Complete set of new installation fasteners • Premium multi-layer steel gaskets for both sides — While it's a direct fit, accessing the manifold bolts on the 7.3L Power Stroke can be time-consuming, and rusted or broken original bolts are common. Having tools like extensions, swivels, and potentially a torch for stubborn hardware is recommended. The passenger side typically takes longer (est. 3.2 hours) than the driver side (est. 2.8 hours) due to component routing.

Are the gaskets included with this kit better than stock?

Yes, the gaskets included in this kit are a significant upgrade over the composite-style gaskets often used in aftermarket replacements and are more durable than the originals. BD Diesel provides robust, OEM-style multi-layer steel (MLS) gaskets. — Factory and many aftermarket gaskets for the 7.3L Power Stroke are made from composite materials that can burn out, compress, and fail over time, leading to exhaust leaks. The included steel gaskets are designed to handle higher exhaust temperatures and more clamping force without deteriorating. This ensures a durable, long-lasting, leak-free seal between the manifold and the cylinder head, which is essential for maintaining performance and preventing comebacks after the repair.