MagnaFlow HM-Grade Federal/EPA-compliant direct-fit rear catalytic converter (24118) for the 1998-2004 Infiniti QX4 and Nissan Pathfinder 3.5L. Spun-body 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 a flange gasket and crush-ring gasket. Federal/EPA compliant (not for CA). OBDII.
Specifications
| Type | Direct-fit catalytic converter |
| Grade | HM Grade |
| Material | 409 stainless steel |
| Hardware | Includes flange gasket and crush-ring gasket |
| OEM Replacement | 14004-4W000, 20010-1W610, 20010-1W611, 20010-5W500, 20010-5W510 |
| Position | Rear |
| Emissions | Federal/EPA compliant (not for CA) |
| Part Number | 24118 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998-2003 | INFINITI | QX4 | Base |
| 1998-2004 | Nissan | Pathfinder | LE |
| 1998-2004 | Nissan | Pathfinder | SE |
| 1998-2001 | Nissan | Pathfinder | XE |
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
