MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49058 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2003-2011 Ford Crown Victoria, 2003-2011 Mercury Grand Marquis, and more, this direct-fit catalytic converter also interchanges with OE part 3W7Z-5E212-AA. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
Specifications
| Type | OEM-grade direct-fit catalytic converter |
| Emissions | Federal / EPA compliant (49-state, not legal in CA, CO, NY) |
| Position | Passenger Side |
| Material | 409 stainless steel |
| Engine | 4.6L |
| Part Number | 49058 |
| OEM Replacement | 3W7Z-5E212-AA |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2008,2010-2011 | Ford | Crown Victoria | Base |
| 2006-2009 | Ford | Crown Victoria | Fleet |
| 2003-2009 | Ford | Crown Victoria | LWB |
| 2003-2011 | Ford | Crown Victoria | LX |
| 2004-2006 | Ford | Crown Victoria | LX Sport |
| 2003-2011 | Ford | Crown Victoria | Police Interceptor |
| 2003-2005 | Ford | Crown Victoria | S |
| 2005 | Ford | Crown Victoria | Special Edition |
| 2003 | Lincoln | Town Car | Cartier |
| 2003 | Lincoln | Town Car | Cartier L |
| 2006-2007 | Lincoln | Town Car | Designer Series |
| 2003-2010 | Lincoln | Town Car | Executive |
| 2003-2011 | Lincoln | Town Car | Executive L |
| 2003 | Lincoln | Town Car | Executive Protection Series |
| 2004-2006 | Lincoln | Town Car | Protection Series |
| 2003-2007 | Lincoln | Town Car | Signature |
| 2005-2011 | Lincoln | Town Car | Signature L |
| 2005-2011 | Lincoln | Town Car | Signature Limited |
| 2004 | Lincoln | Town Car | Ultimate |
| 2004 | Lincoln | Town Car | Ultimate L |
| 2003-2008 | Mercury | Grand Marquis | GS |
| 2005 | Mercury | Grand Marquis | GSL |
| 2005 | Mercury | Grand Marquis | Limited Edition |
| 2003-2011 | Mercury | Grand Marquis | LS |
| 2003 | Mercury | Grand Marquis | LSE |
| 2005 | Mercury | Grand Marquis | Ultimate Edition |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
