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2018 GMC Sierra 1500

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Dorman 674-426 Exhaust Manifold
for 2018 GMC Sierra 1500 4.3L V6 Flex OHV

Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500 Image 1
Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500 Image 2
Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500 Image 3
Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500 Image 4
Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500 Image 5
Dorman 674-426 Exhaust Manifold - 2018 GMC Sierra 1500

Dorman
Brand:Dorman
Part Number: 674-426
UPC: 194883186255
Weight: 10.85 lbs
Condition:New



On Sale:

$113.57

Availability:
1 in Stock
Warehouse: US-19
Quantity:

Product Information

Description:

Get the Dorman 674-426 Exhaust Manifold for your 2018 GMC Sierra 1500. Buy now and secure your purchase online!

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.

Features and Benefits:

  • Complete repair - includes all necessary gaskets and downpipe hardware
  • 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
  • Trustworthy design - built by industry leader in aftermarket manifolds

Specifications:

Collector Port Diameter:
1.8 in.
Color:
Metallic Gray
Gasket Or Seal Included:
No
Grade Type:
Regular
Heat Shield Included:
No
Material:
Ductile Cast Iron
Mounting Hardware Included:
No
Mounting Hole Quantity:
8
Oxygen Sensor Port:
Yes
Package Contents:
1 Exhaust Manifold
Port Shape:
Rectangle
Tube Wall Thickness:
0.125 in.
Country of Origin:
CN

Dorman 674-426 Exhaust Manifold compatibility with your 2018 GMC Sierra 1500...

Last Updated: 10/02/2024

Years Vehicle Per Vehicle PositionFitment Notes

2018

 

2017

 

2016

 

2015

 

2014

 

2018

 

2017

 

2016

 

2015

 

2014

 
GMC Sierra 1500

4.3L V6 Flex OHV
1
 
Right (Passenger)
 

GMC Sierra 1500



4.3L V6 Flex OHV

Right (Passenger)
1 Per Vehicle

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