Item Details

Exhaust Manifold

Exhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | Exhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | Additional ImagesExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | Front ViewExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | Back ViewExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | Top ViewExhaust Manifold Kit - Includes Required Gaskets And Hardware | 674-522 | 3/4 TopMake Dorman your exhaust manifold repair solution | 674-522Why Choose Dorman's Exhaust Manifolds? | 674-522360 View | 674-522

674-522

Exhaust Manifold Kit - Includes Required Gaskets And Hardware

Application Summary: Cadillac 2014-02, Chevrolet 2020-99, GMC 2020-99, Hummer 2009-03, Workhorse 2011-04, Workhorse Custom Chassis 2011-04

Where To Buy

Product Description

Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.

  • Upgraded materials - this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
  • Complete kit - includes new manifold, manifold gasket, flange gasket, 3 studs, 3 nuts
  • Direct fit - reverse engineered from original equipment for seamless installation
  • Quality engineering - designed and tested in the United States

Detailed Applications

Product Specifications

Color: Metallic Gray
Gasket Or Seal Included: Yes
Grade Type: Standard Replacement
Heat Shield Included: Yes
Material: Cast Iron
Mounting Hardware Included: Yes
Package Contents: Exhaust Manifold; 1 Manifold Gasket; 1 Flange Gasket; 3 Studs; 3 Nuts
Port Shape: Round

OE Numbers

DIRECT OE CROSS
12610962 GENERAL MOTORS
12686303 GENERAL MOTORS
NON-DIRECT OE CROSS
12556078 GENERAL MOTORS
12562235 GENERAL MOTORS
12562330 GENERAL MOTORS
12564155 GENERAL MOTORS
12571678 GENERAL MOTORS
12602037 GENERAL MOTORS
12616285 GENERAL MOTORS

Documents & Support

Related Items

Where To Buy

Below you can search and find your area locations that sell Dorman Products. Please be sure to call the location of your choice to verify this item is in stock and available.

Showing Results for 674-522

Exhaust Manifold Kit - Includes Required Gaskets And Hardware