Technical Specifications
674-522
10 oz
General Motors 2017-99
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Natural
Natural
Round
0
3
Yes
Yes
Regular
Yes
Yes
Regular
Exhaust, Manifold, Manifolds
6
More like a kit than a single part, many of Dorman Exhaust Manifolds include gaskets and downpipe hardware for easier installation.In addition to offering our manifolds as complete kits, our OE FIX improves upon the original design. We have upgraded the material to a stronger more heat resilient material called ductile iron for increased durability and to prolong the service life of the part. Since this part is a direct replacement, the exact fit adds another layer of efficiency and convenience.
Cast Iron
Yes
Exhaust Manifold, 1 Manifold Gasket, 1 Flange Gasket, 3 Studs, 3 Nuts
Round
Exhaust Manifold Kit
EXHAUST MANIFOLD
Exhaust Header
Vehicle Fitment
| Make | Model | Years |
|---|---|---|
| CHEVROLET | SILVERADO 2500 HD CLASSIC | 2007 |
| CHEVROLET | SILVERADO 3500 | 2001-2006 |
| CHEVROLET | SILVERADO 3500 CLASSIC | 2007 |
| CHEVROLET | SILVERADO 3500 HD | 2007-2016 |
| CHEVROLET | SUBURBAN 1500 | 2000-2014 |
| CHEVROLET | SUBURBAN 2500 | 2000-2013 |
| CHEVROLET | TAHOE | 2000-2014 |
| GMC | SAVANA 1500 | 2003-2014 |
| GMC | SAVANA 2500 | 2003-2017 |
| GMC | SAVANA 3500 | 2003-2017 |
| GMC | SIERRA 1500 | 1999-2013 |
| GMC | SIERRA 1500 CLASSIC | 2007 |
| GMC | SIERRA 1500 HD | 2001-2003, 2005-2006 |
| GMC | SIERRA 1500 HD CLASSIC | 2007 |
| GMC | SIERRA 2500 | 1999-2004 |
This list of compatible vehicles and years is accurate, but it may not be complete. There may be additional vehicle applications and years compatible with this part not listed.