MagnaFlow OEM-Grade Federal/EPA-compliant direct-fit catalytic converter (280403) for the 2018-2020 Infiniti QX60 3.5L (rear underbody). 16-gauge 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 (2) bolts, (2) crush rings, (1) flange ring and (1) donut gasket. Interchanges with OE part 200A0-9PJ0A. Federal/EPA compliant (not for sale in California) for OBDII vehicles.
Specifications
| Type | Direct-fit catalytic converter |
| Grade | OEM Grade |
| Material | 16-gauge 409 stainless steel |
| Hardware | (2) Bolts, (2) Crush Rings, (1) Flange Ring, (1) Donut Gasket |
| OEM Replacement | 200A0-9PJ0A |
| Position | Rear Underbody |
| Emissions | Federal/EPA compliant (not for sale in California) |
| Part Number | 280403 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2018 | INFINITI | QX60 | Base |
| 2019-2020 | INFINITI | QX60 | Luxe |
| 2019-2020 | INFINITI | QX60 | Pure |
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
