Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 1
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 2
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 3
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 4
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 5
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 6
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 7
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 8
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 9
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 1
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 2
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 3
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 4
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 5
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 6
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 7
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 8
Dorman 674-423 Exhaust Manifold 2011-2017 Ford F-150 - view 9
Dorman Products

Dorman 674-423 Left Exhaust Manifold 11-17 Ford F-150 Lincoln Navigator

In stock
SKU: 591|674423
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
$120.55
Select your vehicle at the top of the page to check fitment.
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|674423
  • Barcode 889245420176

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Description

Exhaust leaks, noise and smell are typical symptoms of a warped, cracked, or failed exhaust manifold. Replace it with this precision-engineered manifold designed to match the fit, function and performance of the original equipment left-side manifold on specified Ford trucks and SUVs equipped with EcoBoost V6 3.5L engines. Necessary gaskets are included for a professional repair.

  • Direct replacement - this exhaust manifold and the included gaskets are designed to match the fit and function of the original equipment on specified Ford trucks and SUVs with EcoBoost V6 3.5L engines
  • Ideal solution - engineered to help restore and ensure leak-free, reliable exhaust flow when an original left-side exhaust manifold is warped, cracked, or failed
  • Reliable construction - manufactured from durable materials to withstand heat and harsh conditions, and to resist warping, cracking and leaking for long-lasting performance
  • Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Vehicle Fitment

Year Make Model Position Notes
2015-2017 Ford Expedition Left 8 Hole Design; Original Design; 3.5L V6; Cast Iron
2011-2016 Ford F-150 Left 8 Hole Design; Original Design; 3.5L V6; Cast Iron
2015-2016 Ford Lobo Left 8 Hole Design; Original Design; 3.5L V6; Cast Iron
2015-2017 Lincoln Navigator Left 8 Hole Design; Original Design; 3.5L V6; Cast Iron

Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.

Specifications

Brand Dorman
Part Number 674-423
UPC 889245420176
Placement Left
Material Cast Iron
Color Metallic Gray
Mounting Hardware Included No
Gasket Or Seal Included Yes
Mounting Hole Quantity 8
Port Shape Round
Oxygen Sensor Port No
Tube Wall Thickness 1.3 in.
Grade Type Standard Replacement
Heat Shield Included No
Package Contents 1 Exhaust Manifold; 1 Inlet Gasket; 1 Outlet Gasket
Country of Origin India
Warranty Limited Lifetime

OE & Interchange Numbers

BL3Z9431B Ford (OE)
662918 Interchange
88368975737842011 Interchange