MagnaFlow 4593218 is the California Grade replacement for the driver side downstream converter, a spun body direct-fit unit built from 16 gauge 409 stainless steel with a ceramic substrate and a single laser fusion weld that limits leak paths. It measures 29 inches overall, carries one oxygen sensor port ahead of the catalyst and no air tube, and bolts up at both flanges with no cutting or welding. CARB Executive Order D-193-188 covers it for registered use in California and the other CARB states. One flange gasket, one crush ring, two washers, two bolts and two nuts ship in the box, so corroded factory hardware does not have to be reused.
Specifications
| Type | Direct-fit catalytic converter, spun body (MagnaFlow California Grade) |
| Position | Left (driver side, Bank 1), secondary converter downstream of the manifold converter |
| Emissions Standard | CARB compliant, legal on California and CARB state registered vehicles |
| CARB EO Number | D-193-188 |
| Body Material | 16 gauge 409 stainless steel |
| Substrate | Ceramic |
| Overall Length | 29 in |
| Inlet / Outlet | Flange / Flange |
| Oxygen Sensor Ports | 1 (pre converter) |
| Air Tube | None |
| Included Hardware | 1 flange gasket, 1 crush ring, 2 washers, 2 bolts, 2 nuts |
| OEM Replacement | 20020-7S000, 20020-7S200, 20020-ZC30A, 20020-ZE00A, 20020-ZH35A, 20020-ZH35B, 20020-ZV50A |
| Quantity | 1 |
| Part Number | 4593218 |
| Warranty | Limited 5 year / 50,000 mile construction and emissions |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004 | INFINITI | QX56 | Base |
| 2004 | Nissan | Pathfinder Armada | LE |
| 2004 | Nissan | Pathfinder Armada | SE |
| 2004 | Nissan | TITAN | LE |
| 2004 | Nissan | TITAN | SE |
| 2004 | Nissan | TITAN | XE |
Shipping
- Orders placed before 3 PM ET typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
