MagnaFlow HM-Grade Federal/EPA-compliant direct-fit manifold catalytic converter (50740) for the driver side of the 2003-2004 Toyota 4Runner and 2003-2005 Lexus GX470 4.7L. Spun-body 409 stainless steel construction with mandrel-bent tubing and 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 gaskets and hardware. Interchanges with OE parts 17104-50180 and 17105-50170. Federal/EPA compliant for OBDII vehicles — not legal for sale in California.
Specifications
| Type | Direct-fit manifold catalytic converter |
| Grade | HM Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Gaskets and hardware included |
| OEM Replacement | 17104-50180, 17105-50170 |
| Position | Driver side (left) |
| Emissions | Federal/EPA compliant (not legal for sale in California) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2005 | Lexus | GX470 | Base |
| 2003-2004 | Toyota | 4Runner | Limited |
| 2003-2004 | Toyota | 4Runner | Sport |
| 2003-2004 | Toyota | 4Runner | SR5 |
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