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10 Best rated catalytic converter cleaners of 2025

Save up to 31% off
  • Best Choice

    1

    Catalytic Converter Cleaner new technology effective cleaning solution kit
    MotorPower Care, catalyst converter cleaning kit

    Catalytic Converter Cleaner new technology effective cleaning solution kit

    9.6
    Exceptional
    Our Rating
  • Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you
    Careful review Our team ensures quality, value, and fit based on real user feedback
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  • Value for Money

    2

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner
    MotorPower Care

    2X Cans Catalytic Converter Cleaner, Oxygen sensor cleaner, pass emissions, SMOG, fuel additive, combustion chamber cleaner

    • Application Method:No disassembly, easy use
    • Performance Improvement:Fix P0420 & P0430
    • Cleaner Function:Clean catalytic converter
    • Function:N/A
    • Dimensions:N/A
    9.5
    Excellent

  • 3

    KXC 2PCS Catalytic Converter Cleaner kit，Catalytic Converter Cleaner, Catalytic Converter Cleaner，Fuel System Treatment Oil for Gas and Diesel Car.
    KXC

    KXC 2PCS Catalytic Converter Cleaner kit，Catalytic Converter Cleaner, Catalytic Converter Cleaner，Fuel System Treatment Oil for Gas and Diesel Car.

    • Application Method:N/A
    • Performance Improvement:N/A
    • Cleaner Function:N/A
    • Function:Reduces carbon build-up
    • Dimensions:6.46 x 4.53 x 1.93 inches
    9.4
    Excellent

  • 4

    3 PCS Catalytic Converter Cleaner Auto Parts Engine, 120 ml Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil for Gas and Diesel Car
    Generic

    3 PCS Catalytic Converter Cleaner Auto Parts Engine, 120 ml Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil for Gas and Diesel Car

    31% Off
    9.3
    Excellent

  • 5

    Catalytic Converter Cleaner Kit Catalytic System Cleaner Boost Up Catalytic Convertor Cleaner Fuel System Treatment Oil for Gas and Diesel Car,120ML
    Generic

    Catalytic Converter Cleaner Kit Catalytic System Cleaner Boost Up Catalytic Convertor Cleaner Fuel System Treatment Oil for Gas and Diesel Car,120ML

    14% Off
    9.2
    Excellent
  • See Today’s Deals & Prices

  • 6

    2PCS Catalytic Converter Cleaner kit,Boost Up Catalytic Converter Cleaner Auto Parts Engine,Fuel and Exhaust Pipe Cleaners,Fuel System Treatment Oil for Gas and Diesel Car
    Generic

    2PCS Catalytic Converter Cleaner kit,Boost Up Catalytic Converter Cleaner Auto Parts Engine,Fuel and Exhaust Pipe Cleaners,Fuel System Treatment Oil for Gas and Diesel Car

    9.1
    Excellent

  • 7

    BIXMK 2pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car
    BIXMK

    BIXMK 2pcs Catalytic Converter Cleaner Auto Parts Engine, Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil, Fuel System Treatment Oil Additive for Gas and Diesel Car

    • Application Method:Pour in fuel tank
    • Performance Improvement:Improves vehicle performance
    • Cleaner Function:Reduces carbon build-up
    • Function:N/A
    • Dimensions:N/A
    9.0
    Excellent

  • 8

    Catalytic Converter Cleaner Pass Emissions Test Cleans Catalyst, Oxygen sensor and combustion chamber cleaner, fuel additive
    MotorPower Care

    Catalytic Converter Cleaner Pass Emissions Test Cleans Catalyst, Oxygen sensor and combustion chamber cleaner, fuel additive

    8.9
    Very Good
    Our Rating

  • 9

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)
    Cataclean

    Cataclean Fuel & Exhaust System Cleaner – Pass Emissions Tests – Clear Check Engine Lights – Restores Catalytic Converters, DPF Filters and Cleans Fuel Systems, 8oz (120020CAT)

    8.6
    Very Good

  • 10

    2025 Catalytic Cleaners, Upgrade Boost up Catalytic System Cleaner, Fuel & Exhaust System CleaneR, Catalytic Converter Cleaning Solution, Engine Carbon Cleaner for Performance Optimization (1, 120ml)
    Peorpel

    2025 Catalytic Cleaners, Upgrade Boost up Catalytic System Cleaner, Fuel & Exhaust System CleaneR, Catalytic Converter Cleaning Solution, Engine Carbon Cleaner for Performance Optimization (1, 120ml)

    8.5
    Good