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Vehicle Info NeededMAGNAFLOWPART NUMBER: 642-21-504
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-504
$94900
Ships on Sep 03, 2026
Lowest Price Guarantee- OEM Grade Direct-Fit Catalytic Converter
- Manufacture OE Number: 274 140 18 08
Magnaflow 21-504 Features:
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-504. 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 2015-2017 Mercedes-Benz C300, 2016-2017 Mercedes-Benz GLC300, and more, this direct-fit catalytic converter also interchanges with OE part 274 140 18 08. 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.Part TypeCatalytic Converter
BrandMAGNAFLOW
Package Height6.12
Package Width13.62
Package Length29.25
Weight10.0 PG
Part CategoryPerformance Parts
Part FitmentDirect Fit
Vendor Part Number21-504
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
