Dorman® 674-587 - Cast Iron Natural Exhaust Manifold

1 review|Item # mpn2272971|Similar Products
In Stock (24)
Vehicle Specific
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Replaces Original (OE) Part #:XL3Z 9431-BA
Authorized Dealer

Vehicle Fitment

FordExpedition 1999-2002
F-150 1999-2004
F-250 1999-2009
Lobo 1999-2003

Product Details

Cast Iron Natural Exhaust Manifold (674-587) by Dorman®. Position: Driver Side. Color: Natural. Header Coating: Uncoated. This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.


Header Material: Cast Iron
Finish: Natural
Position: Driver Side
Heat Shield Included: No
Installation Hardware Included: Yes
Package Quantity: 1
Manifold Bolt Hole Quantity: 8
Gasket or Seal Included: Yes
Flange Bolt Hole Quantity: 0
Flange Stud Hole Quantity: 2
Item Grade: Regular
Inlet Port Shape: Round


  • Exhaust Manifold
  • 1 Manifold Gasket
  • 2 Studs
  • 2 Nuts


  • Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction - durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair - includes all necessary gaskets and downpipe hardware
  • Trustworthy design - built by industry leader in aftermarket manifolds
  • This part conforms to product standards

A rigorous quality inspection has been undertaken to ensure that this part conforms to product standards. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation.

When you want to get OEM quality without the high dealer price, Dorman is the right choice for you. Today you can fix your vehicle properly and have money left in your pocket with a Dorman product. It will look, function, and fit just like the part from the dealer, so your vehicle will operate as it should or even better. The Dorman product is designed using state-of-the-art technologies to exactly replicate the OEM unit, then it is manufactured with modern tooling so that the end product looks and fits exactly as designed. The unit is made to the same dimensions as the OEM part with the same gauge material. Dorman is confident in the quality of their products, which is why the company covers them with a limited lifetime warranty against any defects in materials and workmanship. Easily restore the appearance and function of your vehicle with Dorman products.

Dorman Products® is well-known as a leader in providing quality auto parts to the aftermarket. They have earned their reputation for excellence from over three decades of experience in providing automotive replacement parts, fasteners and service line products primarily for the automotive aftermarket. Their prestigious position stems from a unique combination of application expertise, innovative product design, and breadth of product offerings, many of which are not conveniently or economically available elsewhere.

Part Number:
Alternate MPN:
OE Numbers:
XL3Z 9431-BA


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Dorman® 674-587 - Cast Iron Natural Exhaust Manifold
1-1 of 1 Reviews
5 of 5
Driver Side Manifold
Dorman® 674-587 - Cast Iron Natural Exhaust Manifold
The manifold looks awesome without any defects. Wasn't the easiest of installs but once it was in everything bolted right up just like it should. Looks great and quieted the engine right down. Increased horsepower as well. I would definitely recommend this to anyone.
Posted by Nicolas J (Bengor, ME) / August 20, 20172004 Ford F-150

Questions and Answers

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