MagnaFlow CARB-Grade direct-fit manifold catalytic converter (4583862) for the 2004-2006 Chevrolet Colorado 3.5L and related GMC Canyon, Hummer H3 and Isuzu i-350 applications. Mandrel-bent 409 stainless tubing with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding, and includes one donut gasket and one flange gasket. Interchanges with OE parts 12604221, 12607895, 12655846 and 19418950. Meets California Air Resources Board requirements — legal in California and CARB-restricted states.
| Type | Direct-fit manifold catalytic converter |
| Grade | CARB Grade |
| Material | 409 stainless steel |
| Hardware | (1) donut gasket, (1) flange gasket |
| OEM Replacement | 12604221 / 12607895 / 12655846 / 19418950 |
| Emissions | CARB compliant (CA legal) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004 | Chevrolet | Colorado | Base |
| 2004 | Chevrolet | Colorado | LS |
| 2006 | Chevrolet | Colorado | LT |
| 2004-2005 | Chevrolet | Colorado | Sport |
| 2004-2005 | Chevrolet | Colorado | Sport LS |
| 2006 | Chevrolet | Colorado | WT |
| 2004-2005 | Chevrolet | Colorado | Z71 |
| 2004-2005 | Chevrolet | Colorado | Z71 LS |
| 2004-2005 | Chevrolet | Colorado | Z85 |
| 2004-2005 | Chevrolet | Colorado | Z85 LS |
| 2004 | GMC | Canyon | SL |
| 2004,2006 | GMC | Canyon | SLE |
| 2006 | GMC | Canyon | SLT |
| 2006 | GMC | Canyon | WT |
| 2004-2005 | GMC | Canyon | Z71 Fleet |
| 2004-2005 | GMC | Canyon | Z71 SL |
| 2004-2005 | GMC | Canyon | Z71 SLE |
| 2004-2005 | GMC | Canyon | Z85 SL |
| 2004-2005 | GMC | Canyon | Z85 SLE |
| 2006 | Hummer | H3 | Base |
| 2006 | Isuzu | i-350 | Base |
