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MagnaFlow OEM Grade Direct-Fit Catalytic Converter 51904 for the 1992-1997 Lexus SC400 }
MagnaFlow 51904 oem grade direct-fit catalytic converter, opposite front three-quarter view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, opposite side view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, side view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, opposite rear three-quarter view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, rear view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, rear three-quarter view of the turntable spin }
MagnaFlow 51904 oem grade direct-fit catalytic converter, front three-quarter view of the turntable spin }
Brand: MagnaflowSKU / Part #: MAG51904
Regular price
$716.00
Regular price
$716.00
Sale price
$716.00
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Subtotal: $716.00
MagnaFlow OEM Grade Direct-Fit Converter 1992-1997 Lexus SC400 4.0L
Subtotal: $716.00

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Overview

On the 1992-1997 Lexus SC400 4.0L, a light-duty aftermarket cat often brings the check engine light straight back. MagnaFlow's OEM Grade 51904 is built for exactly that job and bolts in without cutting or welding. Coverage spans 6 model years: 1992-1997 Lexus SC400 (Base). It interchanges with OE 17410-50090. It ships at roughly 23.3 lb.

Features

  • OEM Grade loading sized for the 4.0L OBD-II catalyst monitor
  • Replaces OE 17410-50090
  • Fits 1992-1997 Lexus SC400: Base

What is in the box

  • Gaskets and mounting hardware for installation

Specs

Part number 51904
Type OEM Grade Direct-Fit Catalytic Converter
Emissions Federal/EPA compliant (not for CARB states)
Grade OEM Grade
Material 16-gauge 409 stainless steel
Replaces OE 17410-50090
Shipping weight 23.3 lb

Construction

  • OEM Grade catalyst loading for engines with sensitive OBD-II efficiency monitoring
  • Direct-fit layout: no cutting, welding or pipe stretching
  • Body and pipes in 16-gauge 409 stainless steel
  • Single laser-fusion weld on the catalyst shell
  • Mandrel-bent inlet and outlet pipes keep factory flow
  • OE-sized 410 stainless hangers
  • 308 stainless MIG welds
  • Shape developed from 3D scans of the original part
  • Replaces OE part 17410-50090

Installation

Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended.

Fitment notes

Sold for federal (EPA) emissions use only; it cannot be sold or installed in California, Colorado or New York. Check the fitment table below against your vehicle, including trim and engine.

Fitment

Make Model Chassis Year Engine
Lexus SC400 (Base) — 1992-1997 4.0L
Fitment
YearMakeModel

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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