Item Details

Exhaust Manifold

Exhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-523 | Front ViewExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-523 | Back ViewExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-523 | 3/4 TopMake Dorman your exhaust manifold repair solution | 674-523Why Choose Dorman's Exhaust Manifolds? | 674-523360 View | 674-523

674-523

Exhaust Manifold Kit - Includes Required Gaskets And Hardware

Application Summary: Chevrolet 2014-02, GMC 2014-02, Workhorse 2003

Where To Buy

Product 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

Detailed Applications

Product Specifications

Collector Port Diameter: 2.65 in
Color: Metallic Gray
Finish: Uncoated
Gasket Or Seal Included: Yes
Grade Type: Standard Replacement
Heat Shield Included: Yes
Material: Cast Iron
Mounting Hardware Included: Yes
Mounting Hole Quantity: 9
Oxygen Sensor Port: No
Package Contents: Exhaust Manifold; 2 Manifold Gaskets; 1 Flange Gasket; 3 Studs; 3 Nuts
Port Shape: Square
Tube Wall Thickness: 0.13 in

OE Numbers

DIRECT OE CROSS
12574406 GENERAL MOTORS
12592082 GENERAL MOTORS

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Where To Buy

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Exhaust Manifold Kit - Includes Required Gaskets And Hardware