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Dorman - Exhaust Manifold Kit - Includes Required Gaskets And Hardware - 674-522

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SKU: 591|674-522

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Dorman - Exhaust Manifold Kit - Includes Required Gaskets And Hardware - 674-522
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Exhaust Manifold Kit - Includes Required Gaskets And Hardware

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

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
Package Quantity: 1
Packaging Type: Box
Port Shape: Round

OE Numbers

12610962 GENERAL MOTORS
12686303 GENERAL MOTORS
12556078 GENERAL MOTORS
12562235 GENERAL MOTORS
12562330 GENERAL MOTORS
12564155 GENERAL MOTORS
12571678 GENERAL MOTORS
12602037 GENERAL MOTORS
12616285 GENERAL MOTORS

Fitment

Year Make Model Configuration Positions Application Notes
2003-2020 Chevrolet Express 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2020 Chevrolet Express 3500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2009-2020 Chevrolet Express 4500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2010-2020 Chevrolet Express Cargo (Mexico) V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2013-2020 Chevrolet Express Pasajeros (Mexico) V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2020 GMC Savana 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2020 GMC Savana 3500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2010-2020 GMC Savana 4500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2019 Chevrolet Silverado 2500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007-2019 Chevrolet Silverado 3500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2016-2019 Chevrolet Suburban V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2016-2019 Chevrolet Suburban 3500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2019 GMC Sierra 2500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007-2019 GMC Sierra 3500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2008-2013 Chevrolet Silverado 3500 (Mexico) V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2015-2018 Chevrolet Silverado 3500 (Mexico) V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2017 Chevrolet Express 2500 V8 294 4.8L Left wo/Ceramic Coating
2005-2017 Chevrolet Express 3500 V8 294 4.8L Left wo/Ceramic Coating
2003-2017 GMC Savana 2500 V8 294 4.8L Left wo/Ceramic Coating
2004-2017 GMC Savana 3500 V8 294 4.8L Left wo/Ceramic Coating
2010-2015 Chevrolet Express Pasajeros (Mexico) V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007-2014 Cadillac Escalade V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2007-2014 Cadillac Escalade ESV V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2003-2014 Chevrolet Express 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2014 Chevrolet Suburban (Mexico) V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2014 Chevrolet Suburban 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2014 Chevrolet Tahoe V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2003-2014 GMC Savana 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2009 GMC Yukon V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2011-2014 GMC Yukon V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007-2014 GMC Yukon V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2002-2014 GMC Yukon XL 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007-2014 GMC Yukon XL 1500 V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2002-2006 Cadillac Escalade V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2009-2013 Cadillac Escalade V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007-2013 Cadillac Escalade EXT V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2007-2013 Chevrolet Avalanche V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2010-2013 Chevrolet Cheyenne (Mexico) V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2012-2013 Chevrolet Cheyenne 2500 V8 324 5.3L Left wo/Ceramic Coating
2002-2013 Chevrolet Silverado 1500 V8 294 4.8L Left wo/Ceramic Coating
2002-2013 Chevrolet Silverado 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2003-2013 Chevrolet Silverado 1500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2009-2013 Chevrolet Silverado 1500 V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2006-2013 Chevrolet Silverado 2500 (Mexico) V8 294 4.8L Left wo/Ceramic Coating
2005-2013 Chevrolet Silverado 2500 (Mexico) V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2006-2009 Chevrolet Suburban 1500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2011-2013 Chevrolet Suburban 1500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2013 Chevrolet Suburban 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007-2013 GMC Sierra (Mexico) V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2008-2013 GMC Sierra (Mexico) V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2002-2013 GMC Sierra 1500 V8 294 4.8L Left wo/Ceramic Coating
2002-2013 GMC Sierra 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2013 GMC Sierra 1500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007-2013 GMC Sierra 1500 V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2002-2006 GMC Yukon V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2008-2013 GMC Yukon V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2013 GMC Yukon XL 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2008-2012 Chevrolet Tahoe V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2010-2011 Workhorse W42 V8 294 4.8L; FLEX Left wo/Ceramic Coating
2007-2011 Workhorse W62 V8 294 4.8L; GAS Left wo/Ceramic Coating
2010-2011 Workhorse Custom Chassis W42 V8 294 4.8L; FLEX Left wo/Ceramic Coating
2007-2009 Chevrolet Avalanche V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2009 Chevrolet Tahoe V8 294 4.8L Left wo/Ceramic Coating
2008-2009 Chevrolet Tahoe V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2002-2009 GMC Yukon V8 294 4.8L Left wo/Ceramic Coating
2002-2009 GMC Yukon XL 1500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2009 Hummer H2 V8 376 6.2L Left wo/Ceramic Coating
2008-2009 Hummer H2 V8 376 6.2L (6162cc) Left wo/Ceramic Coating
2006-2009 Workhorse W42 V8 294 4.8L; GAS Left wo/Ceramic Coating
2006-2009 Workhorse Custom Chassis W42 V8 294 4.8L; GAS Left wo/Ceramic Coating
2003-2008 Chevrolet Express 3500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007 Chevrolet Silverado 1500 Classic V8 294 4.8L Left wo/Ceramic Coating
2007 Chevrolet Silverado 1500 Classic V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007 Chevrolet Silverado 1500 Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 Chevrolet Silverado 1500 HD Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 Chevrolet Silverado 2500 HD Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 Chevrolet Silverado 3500 Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 GMC Sierra 1500 Classic V8 294 4.8L Left wo/Ceramic Coating
2007 GMC Sierra 1500 Classic V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2007 GMC Sierra 1500 Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 GMC Sierra 1500 HD Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 GMC Sierra 2500 HD Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2007 GMC Sierra 3500 Classic V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2007 Hummer H2 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2003-2006 Cadillac Escalade ESV V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2006 Cadillac Escalade EXT V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2006 Chevrolet Avalanche 1500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2003 Chevrolet Silverado 1500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2005-2006 Chevrolet Silverado 1500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2006 Chevrolet Silverado 3500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2003 GMC Sierra 1500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2005-2006 GMC Sierra 1500 HD V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2006 GMC Sierra 3500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2005 Cadillac Escalade V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2003-2005 Chevrolet Express 2500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2003-2005 GMC Savana 2500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2004-2005 Workhorse FasTrack FT1061 V8 294 4.8L; GAS Left wo/Ceramic Coating
2005 Workhorse FasTrack FT1261 V8 294 4.8L; GAS Left wo/Ceramic Coating
2004-2005 Workhorse FasTrack FT1461 V8 294 4.8L; GAS Left wo/Ceramic Coating
2004-2005 Workhorse FasTrack FT1601 V8 294 4.8L; GAS Left wo/Ceramic Coating
2004-2005 Workhorse Custom Chassis P42 V8 294 4.8L; GAS Left wo/Ceramic Coating
2002-2004 Chevrolet Silverado 2500 V8 325 5.3L (5328cc) Left wo/Ceramic Coating
2002-2004 Chevrolet Silverado 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
2002-2004 GMC Sierra 2500 V8 364 6.0L (5967cc) Left wo/Ceramic Coating
1999-2001 Chevrolet Silverado 1500 V8 294 4.8L Left wo/Air Pump; wo/Ceramic Coating
1999-2001 Chevrolet Silverado 1500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
2001 Chevrolet Silverado 1500 HD V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
1999-2001 Chevrolet Silverado 2500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
1999-2001 Chevrolet Silverado 2500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2001 Chevrolet Silverado 2500 HD V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2001 Chevrolet Silverado 3500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 Chevrolet Suburban 1500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 Chevrolet Suburban 2500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 Chevrolet Tahoe V8 294 4.8L Left wo/Air Pump; wo/Ceramic Coating
2000-2001 Chevrolet Tahoe V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
1999-2001 GMC Sierra 1500 V8 294 4.8L Left wo/Air Pump; wo/Ceramic Coating
1999-2001 GMC Sierra 1500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Sierra 1500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Sierra 1500 HD V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
1999-2001 GMC Sierra 2500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Sierra 2500 HD V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Sierra 3500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 GMC Yukon V8 294 4.8L Left wo/Air Pump; wo/Ceramic Coating
2000-2001 GMC Yukon V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Yukon V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 GMC Yukon XL 1500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating
2001 GMC Yukon XL 1500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
2000-2001 GMC Yukon XL 2500 V8 364 6.0L (5967cc) Left wo/Air Pump; wo/Ceramic Coating
1999-2000 GMC Sierra 2500 V8 325 5.3L (5328cc) Left wo/Air Pump; wo/Ceramic Coating

Buy with confidence – If you encounter any issues with your Dorman product, simply reach out to us. We are committed to ensuring your satisfaction and will assist with any return or exchange requests that meet our policy guidelines.

Why Choose Dorman?

Dorman is a trusted leader in OE-style replacement parts, offering precision-engineered solutions for reliable performance. Each part undergoes rigorous testing to ensure durability, safety, and a seamless fit. Designed as a cost-effective alternative to OEM parts, Dorman provides high-quality replacements backed by expert engineering. Choose Dorman for dependable, long-lasting automotive solutions.

We assure you that we ship all the parcels received on the same day till 12 pm standard central time.

  • Usually, it takes 1 to 5 days for the package to reach.
  • Our standard shipping is FedEx home delivery or UPS Ground. Delivery for residential locations is estimated to be on Saturdays ( this applies to 48 continental states).
  • Delivery for residential locations is estimated to be on Saturdays ( this applies to 48 continental states).
  • The email address on the order will send you all the shipment tracking details.
  • Please note that we are not responsible for any delays because of holidays, weather, or anything beyond our control.

We send shipment tracking numbers via email. It is sent to the email address you provided in your order. If you would like to change the email address you provided, Feel free to contact our support team at (support@part-synergy.com).

Return Shipping

We are here to serve you. If there is any item that is damaged or needs to be exchanged or returned for any reason, please contact our support team(support@part-synergy.com). Please read our return and exchange policy to learn more about this.

All orders are free of shipment costs. The cost mentioned on the website is for getting it to your doorstep.

Please do get in touch with our customer support as they may be able to provide you with a return label which will cost you much less. But if you still need to send an item back, here is our shipping address. 

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