Magnaflow · New
MagnaFlow Direct Fit Catalytic Conv 2008 Chrysler/Dodge 300/Charger/Magnum 5.7L Passenger Side AWD
MPN 51585 · Store SKU mag51585
Supplier stock checked 11/8/2026, 6:44:12 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51585. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. MagnaFlow 51585 interchanges with OE parts 4578 448AB, 4578 448AC, 4578 448AD, 4578 650AA, 4578 650AB, 4578 650AC, 4581 740AA, 4581 740AB, 4581 740AC, 4581 748AB, 6803 9466AA, 6805 7164AD, 6805 7164AE, 6805 7164AF, 6805 7164AH. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems. Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51585. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2007-2018 Dodge Charger, 2005-2019 Chrysler 300, and more, this direct-fit catalytic converter also interchanges with OE parts 4581 748AB and 6803 9466AA, among others. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems. Magnaflow OEM Grade Direct-Fit Catalytic Converter OEM Grade Direct-Fit Catalytic Converter
Manufacturer fitment & guides
Check 51585 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
