Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 1
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 2
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 3
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 4
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 5
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 6
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 7
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 8
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 9
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 1
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 2
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 3
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 4
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 5
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 6
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 7
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 8
Dorman 674-491 Exhaust Manifold 2018-2021 Lincoln Navigator - view 9
Dorman Products

Dorman 674-491 Right Exhaust Manifold 18-21 Ford F-150 Lincoln Navigator

In stock
SKU: 591|674491
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
$114.51
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|674491
  • Barcode 194883316478

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Description

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.

  • 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

Vehicle Fitment

Year Make Model Position Notes
2020 Ford F-150 Right wo/Ceramic Coating
2019 Ford F-150 Right wo/Ceramic Coating; 3.5L V6
2018 Ford F-150 Right wo/Ceramic Coating
2018-2021 Lincoln Navigator Right wo/Ceramic Coating

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 674-491
UPC 194883316478
Placement Right
Material Cast Iron
Color Metallic Gray
Mounting Hardware Included No
Gasket Or Seal Included No
Mounting Hole Quantity 11
Port Shape Round
Collector Port Diameter 33 mm
Oxygen Sensor Port No
Tube Wall Thickness 0.125 in.
Grade Type Standard Replacement
Heat Shield Included No
Package Contents 1 Exhaust Manifold; 2 Gaskets
Country of Origin India
Warranty Limited Lifetime

OE & Interchange Numbers

JL7Z9430B Ford (OE)
JL7Z9430A Ford (OE)
662986 Interchange