Specifications
| Type | OEM-grade direct-fit catalytic converter |
| Emissions | California Grade (CARB compliant, 50-state legal) |
| Material | 409 stainless steel |
| Engine | 6.0L |
| Part Number | 4551479 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 | Chevrolet | Silverado 2500 HD | Base |
| 2003,2006 | Chevrolet | Silverado 2500 HD | LS |
| 2003,2006 | Chevrolet | Silverado 2500 HD | LT |
| 2003,2006 | Chevrolet | Silverado 2500 HD | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2003 | GMC | Sierra 2500 HD | Base |
| 2006 | GMC | Sierra 2500 HD | SL |
| 2003,2006 | GMC | Sierra 2500 HD | SLE |
| 2003,2006 | GMC | Sierra 2500 HD | SLT |
| 2003,2006 | GMC | Sierra 2500 HD | WT |
| 2007 | GMC | Sierra 2500 HD Classic | SL |
| 2007 | GMC | Sierra 2500 HD Classic | SLE |
| 2007 | GMC | Sierra 2500 HD Classic | SLT |
| 2007 | GMC | Sierra 2500 HD Classic | WT |
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