Dorman 674-496 Right Exhaust Manifold 14-20 Chevy Silverado 1500 GMC Sierra 1500
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$147.51
Select your vehicle at the top of the page to check fitment.
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
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
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019-2020 | Cadillac | Escalade | Right | 6.2L V8 |
| 2018 | Cadillac | Escalade | Right | 5.3L V8 |
| 2015-2017 | Cadillac | Escalade | Right | 6.2L V8 |
| 2018 | Cadillac | Escalade ESV | Right | 5.3L V8 |
| 2015-2020 | Cadillac | Escalade ESV | Right | 6.2L V8 |
| 2020 | Chevrolet | Cheyenne | Right | 5.3L V8 |
| 2020 | Chevrolet | Cheyenne | Right | 6.2L V8 |
| 2016-2017 | Chevrolet | Cheyenne | Right | 6.2L V8 |
| 2014-2017 | Chevrolet | Cheyenne | Right | 5.3L V8 |
| 2020 | Chevrolet | Silverado 1500 | Right | 5.3L V8 |
| 2020 | Chevrolet | Silverado 1500 | Right | 6.2L V8 |
| 2014-2018 | Chevrolet | Silverado 1500 | Right | 5.3L V8 |
| 2014-2018 | Chevrolet | Silverado 1500 | Right | 6.2L V8 |
| 2019 | Chevrolet | Silverado 1500 Legacy | Right | 5.3L V8 |
| 2019 | Chevrolet | Silverado 1500 Legacy | Right | 6.2L V8 |
| 2014-2018 | Chevrolet | Silverado 2500 | Right | 5.3L V8 |
| 2018-2020 | Chevrolet | Suburban | Right | 6.2L V8 |
| 2015-2020 | Chevrolet | Suburban | Right | 5.3L V8 |
| 2018-2020 | Chevrolet | Tahoe | Right | 6.2L V8 |
| 2015-2018 | Chevrolet | Tahoe | Right | 5.3L V8 |
| 2020 | GMC | Sierra | Right | 5.3L V8 |
| 2020 | GMC | Sierra | Right | 6.2L V8 |
| 2014-2018 | GMC | Sierra | Right | 5.3L V8 |
| 2014-2018 | GMC | Sierra | Right | 6.2L V8 |
| 2020 | GMC | Sierra 1500 | Right | 5.3L V8 |
| 2020 | GMC | Sierra 1500 | Right | 6.2L V8 |
| 2014-2018 | GMC | Sierra 1500 | Right | 5.3L V8 |
| 2014-2018 | GMC | Sierra 1500 | Right | 6.2L V8 |
| 2019 | GMC | Sierra 1500 Limited | Right | 6.2L V8 |
| 2019 | GMC | Sierra 1500 Limited | Right | 5.3L V8 |
| 2015-2020 | GMC | Yukon | Right | 6.2L V8 |
| 2015-2018 | GMC | Yukon | Right | 5.3L V8 |
| 2020 | GMC | Yukon XL | Right | 5.3L V8 |
| 2015-2018 | GMC | Yukon XL | Right | 5.3L V8 |
| 2015-2017 | GMC | Yukon XL | Right | 6.2L V8 |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 674-496 |
| UPC | 889245259134 |
| Placement | Right |
| Material | Cast Iron |
| Color | Metallic Gray |
| Mounting Hardware Included | Yes |
| Gasket Or Seal Included | Yes |
| Port Shape | Oval |
| Oxygen Sensor Port | No |
| Tube Wall Thickness | 0.43 in. |
| Grade Type | Standard Replacement |
| Heat Shield Included | No |
| Package Contents | 1 Exhaust Manifold; 1 Manifold Gasket; 1 Flange Gasket; 3 Studs; 3 Nuts |
| Country of Origin | India |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 12629338 | General Motors (OE) |
|---|---|
| 40589328585731612 | Interchange |
| 662991 | Interchange |