10 Best Catalytic Converter Cleaners

Updated December 2024

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Cataclean 120007 Complete Engine, Fuel and Exhaust System Cleaner, 473 Milliliter

9.8

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OXICAT - Oxygen Sensor & Catalytic Converter Cleaner

9.4

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Solder-It (CAT-1) Catalytic Converter Cleaner - 16 oz

9.1

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Cataclean 120019 Cataclean - The Original Liquid Science - Complete Engine, Fuel

8.8

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Cataclean 120018CAT Cataclean Fuel And Exhaust System Cleaner Special Formula For Use w/Gasoline

8.7

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Motorkote MK-10351-06 Catalytic and Exhaust Treatment Emissions Control

8.3

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AUTOSAVER88 ATCC0016 2" Inlet/Outlet Universal Catalytic Converter with O2 Port and Heat Shield

8.1

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Catalytic Converter Cleaning Kit Intensive Cleaning Made in Germany

MotorPower Care, catalyst converter cleaning kit

7.6

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Liqui Moly 8931 Catalytic-System Cleaner

7.5

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MotorPower Care Catalytic Converter Cleaner Oxygen Sensor Latest Technology

MotorPower Care

7.0

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