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AdditivesAll Auto PaintATV / UTV Oils & FluidsAutomotive Bulk BuysAutomotive Cleaners & DegreasersAutomotive FluidsAutomotive Paints and CoatingsCar CustomizationCar WashCar Wash SuppliesEngine & Powertrain Replacement PartsExhaust Parts & Emissions PartsExterior Car DetailingHeadlight RestorationHolley BrandsInterior Car DetailingMaintenance EquipmentMotorcycle Oils & FluidsReplacement Auto PartsRV Cleaners
Catalytic Agent(311)
Uses item details. Price when purchased online
Rollback Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz From $19.54
Sponsored
From$1954
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
7984.2 out of 5 Stars. 798 reviews
XADO RED CAT Shield – Catalytic Converter & Combustion System Cleaner with Revitalizant, Prevents Clogging & Reduces Emissions, 250 ml $25.99
Sponsored
$2599
current price $25.99XADO RED CAT Shield – Catalytic Converter & Combustion System Cleaner with Revitalizant, Prevents Clogging & Reduces Emissions, 250 ml
Clearance 2Pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML From $7.99
Sponsored
From$799
2Pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML
114.2 out of 5 Stars. 11 reviews
Rollback Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz From $19.54
5 options
Available in additional 5 optionsFrom$1954
Dura Lube Catalytic & Exhaust System Treatment Emissions Additive Automotive Converter Cleaner 16 Fl oz
7984.2 out of 5 Stars. 798 reviews
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz From $27.94
5 options
Available in additional 5 optionsFrom$2794
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
2154.4 out of 5 Stars. 215 reviews
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz From $27.94
5 options
Available in additional 5 optionsFrom$2794
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz
6134.1 out of 5 Stars. 613 reviews
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz (Pack of 2) $49.95
$4995
current price $49.95Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz (Pack of 2)
1434.6 out of 5 Stars. 143 reviews
Clearance Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML From $7.99
4 options
Available in additional 4 optionsFrom$799
Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML
114.2 out of 5 Stars. 11 reviews
EZ Pass Emissions Treatment Automotive Additive Catalytic & Exhaust Cleaner 16 fl oz $21.48 $1.34/fl oz
$2148
current price $21.48$1.34/fl oz
EZ Pass Emissions Treatment Automotive Additive Catalytic & Exhaust Cleaner 16 fl oz
Solder-It Catalytic Converter Cleaner and Deodorizer (16 fl oz) | Fuel System Cleaner | EGR Valve, Combustion Chamber, and Oxygen Sensor Cleaner | Catalytic Cleaner Fuel Additive for Gasoline Engines $16.72
$1672
current price $16.72Solder-It Catalytic Converter Cleaner and Deodorizer (16 fl oz) | Fuel System Cleaner | EGR Valve, Combustion Chamber, and Oxygen Sensor Cleaner | Catalytic Cleaner Fuel Additive for Gasoline Engines
323.7 out of 5 Stars. 32 reviews
Three-way catalytic cleanerengine internal disassembly free cleaning.exhaust gas decarbonization cleaning agent springtok From $6.99
2 options
Available in additional 2 optionsFrom$699
Three-way catalytic cleanerengine internal disassembly free cleaning.exhaust gas decarbonization cleaning agent springtok
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 3 Liter Jug - Treats up to 30 Gal of Fuel $76.25 $25.42/l
$7625
current price $76.25$25.42/l
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 3 Liter Jug - Treats up to 30 Gal of Fuel
674.2 out of 5 Stars. 67 reviews
Molecure Catalytic Restore Emission Treatment Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive Reduces Carbon Buildup 12 oz Bottle, Treats Up to 20 Gallons $15.19
$1519
current price $15.19Molecure Catalytic Restore Emission Treatment Catalytic Converter Cleaner & Oxygen Sensor Fuel Additive Reduces Carbon Buildup 12 oz Bottle, Treats Up to 20 Gallons
264.8 out of 5 Stars. 26 reviews
YFTDEF Automotive Cleaning Agent, Catalytic Converter Cleaner, Carbon Deposit Removal, Engine Maintenance, Gasoline Additive, Optimal Performance, 4.06oz Bottle From $5.29
From$529
YFTDEF Automotive Cleaning Agent, Catalytic Converter Cleaner, Carbon Deposit Removal, Engine Maintenance, Gasoline Additive, Optimal Performance, 4.06oz Bottle
15 out of 5 Stars. 1 reviews
XADO RED CAT Shield Catalytic Converter & Combustion System Cleaner with Revitalizant, Prevents Clogging & Reduces Emissions, 250 ml $25.99
$2599
current price $25.99XADO RED CAT Shield Catalytic Converter & Combustion System Cleaner with Revitalizant, Prevents Clogging & Reduces Emissions, 250 ml
VELIMO 2026 New Catalytic Converter Cleaner Engine Booster Cleaner 120Ml3,Carbon Deposit Removing Agent,Safe for Gasoline,Hybrid and Flex-Fuel Vehicles for Maintenance,Cleaning,Performance,Engine $12.37
$1237
current price $12.37VELIMO 2026 New Catalytic Converter Cleaner Engine Booster Cleaner 120Ml3,Carbon Deposit Removing Agent,Safe for Gasoline,Hybrid and Flex-Fuel Vehicles for Maintenance,Cleaning,Performance,Engine
Clearance Fuel System Cleaner, Carburetor Throttle Engine Deposit Remover, Catalytic Converter Cleaning Agent, Automotive Gasoline Additive, 2 Pack, 120ml Each From $9.99
From$999
Fuel System Cleaner, Carburetor Throttle Engine Deposit Remover, Catalytic Converter Cleaning Agent, Automotive Gasoline Additive, 2 Pack, 120ml Each
120ml Catalytic Converter Cleaner, Wenini Automotive Carbon Deposit Remover Additive, Engine Throttle Cleaning Agent for Exhaust Gas Removal Gasoline Treatment, Gold From $8.49
From$849
120ml Catalytic Converter Cleaner, Wenini Automotive Carbon Deposit Remover Additive, Engine Throttle Cleaning Agent for Exhaust Gas Removal Gasoline Treatment, Gold
1pc Engine Carbon Cleaner 120ml - Oxygen Sensor & Throttle Body Cleaner, Catalytic Converter Cleaning Agent, Fuel Injector Decarbonizer, Restores Engine Power, Reduces Emissions From $8.02
From$802
1pc Engine Carbon Cleaner 120ml - Oxygen Sensor & Throttle Body Cleaner, Catalytic Converter Cleaning Agent, Fuel Injector Decarbonizer, Restores Engine Power, Reduces Emissions
Automotive Cleaning Agent, Catalytic Converter Cleaner, Engine Disassembly Cleaning Exhaust Gas Removal Carbon Deposition, Gasoline Additive 120ml
Automotive Cleaning Agent, Catalytic Converter Cleaner, Engine Disassembly Cleaning Exhaust Gas Removal Carbon Deposition, Gasoline Additive 120ml
15 out of 5 Stars. 1 reviews
YFTDEF Automotive Cleaning Agent, 4oz Catalytic Converter Cleaner, Engine Performance Booster, Reduces Emissions, Easy Cleaning for Gasoline Vehicles, Engine Additive
YFTDEF Automotive Cleaning Agent, 4oz Catalytic Converter Cleaner, Engine Performance Booster, Reduces Emissions, Easy Cleaning for Gasoline Vehicles, Engine Additive
Clearance Catalytic Converter Cleaner Fuel Additive - Throttle & Engine Carbon Removal, 120ml Auto Gasoline Additive From $4.98
From$498
Catalytic Converter Cleaner Fuel Additive - Throttle & Engine Carbon Removal, 120ml Auto Gasoline Additive
Volpex Catalytic agents,Catalytic Converter Cleaner Kit,Boost Up Catalytic Convertor Cleaner $32.99
$3299
current price $32.99Volpex Catalytic agents,Catalytic Converter Cleaner Kit,Boost Up Catalytic Convertor Cleaner
Clearance Snmubt 250ML Car Three-Way Catalytic Converter Engine Cleaner, Carbon Deposit Removing Agent Booster Cleaner for Gasoline Vehicles, Safe Exhaust System Treatment Was $8.48
Snmubt 250ML Car Three-Way Catalytic Converter Engine Cleaner, Carbon Deposit Removing Agent Booster Cleaner for Gasoline Vehicles, Safe Exhaust System Treatment
kladzum Automotive Cleaning Fuel Injector Cleaner, Agent Carburetor Throttle Catalytic Converter Cleaner, Exhaust Gas Removal Carbon Deposition Stabilizer Gasoline Additive 120ml From $13.67
From$1367
kladzum Automotive Cleaning Fuel Injector Cleaner, Agent Carburetor Throttle Catalytic Converter Cleaner, Exhaust Gas Removal Carbon Deposition Stabilizer Gasoline Additive 120ml
kladzum Automotive Cleaning Fuel Injector Cleaner, Agent Carburetor Throttle Catalytic Converter Cleaner, Exhaust Gas Removal Carbon Deposition Stabilizer Gasoline Additive 120ml From $3.47
From$347
kladzum Automotive Cleaning Fuel Injector Cleaner, Agent Carburetor Throttle Catalytic Converter Cleaner, Exhaust Gas Removal Carbon Deposition Stabilizer Gasoline Additive 120ml
Dura Lube HL-402509-06 Diesel DPF and Catalytic Treatment Automobile Additives, 16 oz From $17.66
5 options
Available in additional 5 optionsFrom$1766
Dura Lube HL-402509-06 Diesel DPF and Catalytic Treatment Automobile Additives, 16 oz
44.8 out of 5 Stars. 4 reviews
Catalytic Converter Cleaner for Car Engine Cleaner Powerful Booster Cleaner Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent 120ml *3PCS
Catalytic Converter Cleaner for Car Engine Cleaner Powerful Booster Cleaner Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent 120ml *3PCS
Automotive Carbon Deposit Cleaner - Carburetor Throttle Engine Disassembly Cleaner, Exhaust Gas Removal Additive, 120ml From $7.98
From$798
Automotive Carbon Deposit Cleaner - Carburetor Throttle Engine Disassembly Cleaner, Exhaust Gas Removal Additive, 120ml
Car Catalytic Converter Cleaner, 120ml Automotive Cleaning Agent for Carbon Deposit Removal and Engine Performance, Fuel Additive System Cleaner Revitalizant
Car Catalytic Converter Cleaner, 120ml Automotive Cleaning Agent for Carbon Deposit Removal and Engine Performance, Fuel Additive System Cleaner Revitalizant
Three-Way Catalytic Converter Cleaning Agent, Powerful Engine Carbon Deposit Remover and Exhaust Purifier, Fuel Additive for Gasoline Vehicles to Improve Power and Reduce Emissions
Three-Way Catalytic Converter Cleaning Agent, Powerful Engine Carbon Deposit Remover and Exhaust Purifier, Fuel Additive for Gasoline Vehicles to Improve Power and Reduce Emissions
Lume Wear Catalytic Converter Cleaner and Engine Booster 120ml a Multi Purpose Cleaning Agent for Auto Exhaust System. Removes Carbon Buildup and Improves Efficienc $9.78 Was $10.99
Now$978
current price Now $9.78, Was $10.99$10.99
Lume Wear Catalytic Converter Cleaner and Engine Booster 120ml a Multi Purpose Cleaning Agent for Auto Exhaust System. Removes Carbon Buildup and Improves Efficienc
Catalytic Converter Cleaner,Car Engine Booster Cleaner Powerful Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent, 4oz(2Pcs) From $16.30
From$1630
Catalytic Converter Cleaner,Car Engine Booster Cleaner Powerful Oxygen Sensor The Fuel Injectors Cylinder Heads Cleaning Agent, 4oz(2Pcs)
Clearance Automotive Catalytic Converter Cleaner | Gasoline Additive Carbon Deposit Remover | Throttle & Carburetor Cleaning Agent | 120ml Bottle for Engine Maintenance | Improves Exhaust Performance Was $5.64
Automotive Catalytic Converter Cleaner | Gasoline Additive Carbon Deposit Remover | Throttle & Carburetor Cleaning Agent | 120ml Bottle for Engine Maintenance | Improves Exhaust Performance
Cataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz (Pack of 6)
5 options
Available in additional 5 optionsCataclean Fuel & Exhaust System Cleaner, Automotive Additive, Catalytic Converter Restorer, 16 oz (Pack of 6)
74.7 out of 5 Stars. 7 reviews
Automotive Cleaning Agent Carburetor Throttle Body Cleaner 120ml Deep Clean Without Disassembly for Carbon Deposition Removal, Catalytic Converter Fuel System Additive for Gasoline Engine Performance $7.99
$799
current price $7.99Automotive Cleaning Agent Carburetor Throttle Body Cleaner 120ml Deep Clean Without Disassembly for Carbon Deposition Removal, Catalytic Converter Fuel System Additive for Gasoline Engine Performance
Qonioi Catalytic Converter Cleaner, Car Engine Carbon Deposit Remover Additive, Automotive Fuel System Cleaning Agent for Exhaust Gas Removal Throttle Maintenance
Qonioi Catalytic Converter Cleaner, Car Engine Carbon Deposit Remover Additive, Automotive Fuel System Cleaning Agent for Exhaust Gas Removal Throttle Maintenance
2pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML From $13.99
From$1399
2pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML
Tgbvmt 100ML Automobile Internal Cleaning Agent Carbon Cleaner for Catalytic Converters Restore Engine Performance Remove Carbon Deposits Extend Vehicle Lifespan Improve Fuel Efficiency and Power Was $4.97
Tgbvmt 100ML Automobile Internal Cleaning Agent Carbon Cleaner for Catalytic Converters Restore Engine Performance Remove Carbon Deposits Extend Vehicle Lifespan Improve Fuel Efficiency and Power
Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML $2.99
$299
current price $2.99Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML
30ml Catalytic Converter Cleaner Auto Hardware Parts Carbon Deposit Remover Improve Engine Performance Emission Standard Fuel Efficiency Maintenance Agent Was $7.47
30ml Catalytic Converter Cleaner Auto Hardware Parts Carbon Deposit Remover Improve Engine Performance Emission Standard Fuel Efficiency Maintenance Agent
Carburetor Throttle Engine Cleaner | Catalytic Converter | Automotive Gasoline Additive for Exhaust Carbon Deposit Removal | 120ml Bottle | 2/3/4/5 Pack
Carburetor Throttle Engine Cleaner | Catalytic Converter | Automotive Gasoline Additive for Exhaust Carbon Deposit Removal | 120ml Bottle | 2/3/4/5 Pack
Carburetor and Throttle Engine Cleaner | Automotive Catalytic Converter Cleaning Agent | Carbon Deposit and Exhaust Removal | Gasoline Additive | 120ml Bottle | Vehicle Performance Enhancer $5.98
$598
current price $5.98Carburetor and Throttle Engine Cleaner | Automotive Catalytic Converter Cleaning Agent | Carbon Deposit and Exhaust Removal | Gasoline Additive | 120ml Bottle | Vehicle Performance Enhancer
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