California and the states that follow CARB rules will only pass an aftermarket converter that holds an Executive Order number; this one is covered by EO D-193-197 and is separately certified for New York. It is the bank 1 assembly, the passenger side primary converter, 46.25in overall, with two 2.5in inlet flanges feeding an 11in spun body and a single 3in outlet flange. The upstream and mid-bed oxygen sensor bungs sit in their factory positions so the OBDII catalyst monitor reads normally. Tubing is 16 gauge 409 stainless steel joined with 308 stainless MIG welds and mandrel-bent to keep the OE routing, and the ceramic substrate is sized to reproduce factory flow. Two bolts and hangers are included, and installation is bolt-on with no cutting or welding.
Specifications
| Type | Direct-fit catalytic converter (MagnaFlow California Grade) |
| Position | Primary (close-coupled), passenger side (Bank 1) |
| Emissions | CARB compliant, EO D-193-197. New York certified |
| Body | Spun round, 11in |
| Inlet | 2 x 2.5in flange |
| Outlet | 3in flange |
| Overall Length | 46.25in |
| Material | 16 gauge 409 stainless steel tubing, 308 stainless steel MIG welds |
| Substrate | Ceramic |
| Sensor Ports | 2 (pre converter and mid bed) |
| Included | 2 bolts and hangers |
| Warranty | Limited 5 year construction, limited 5 year emissions |
| Quantity | 1 |
| Part Number | 5551418 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2010 | Ford | Expedition | Eddie Bauer |
| 2009-2010 | Ford | Expedition | EL Eddie Bauer |
| 2009-2014 | Ford | Expedition | EL King Ranch |
| 2009-2014 | Ford | Expedition | EL Limited |
| 2011-2014 | Ford | Expedition | EL XL |
| 2009-2014 | Ford | Expedition | EL XLT |
| 2009-2014 | Ford | Expedition | King Ranch |
| 2009-2014 | Ford | Expedition | Limited |
| 2011-2014 | Ford | Expedition | XL |
| 2009-2014 | Ford | Expedition | XLT |
| 2010 | Ford | F-150 | FX2 |
| 2009-2010 | Ford | F-150 | FX4 |
| 2010 | Ford | F-150 | Harley-Davidson Edition |
| 2009-2010 | Ford | F-150 | King Ranch |
| 2009-2010 | Ford | F-150 | Lariat |
| 2009-2010 | Ford | F-150 | Platinum |
| 2010 | Ford | F-150 | SVT Raptor |
| 2009-2010 | Ford | F-150 | XL |
| 2009-2010 | Ford | F-150 | XLT |
| 2009-2014 | Lincoln | Navigator | Base |
| 2009-2014 | Lincoln | Navigator | L |
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
