Hummer Catalytic Converters

Hummer Catalytic Converters
  • AP Exhaust® - Catalytic Converter and Pipe Assembly
    AP Exhaust®Catalytic Converter and Pipe Assembly
    13
    # sp128237
    Catalytic Converter and Pipe Assembly by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but...
    5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
    $136.68 - $1,456.60
  • MagnaFlow® - Direct Fit Catalytic Converter
    MagnaFlow®Direct Fit Catalytic Converter
    43
    # sp839
    Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check. The Direct Fit Catalytic Converter is available in Pre-OBD II, OBD II, and OEM Grade OBD II configurations.
    $143.00 - $5,871.00
  • AP Exhaust® - Direct Fit Exhaust Manifold
    AP Exhaust®Direct Fit Exhaust Manifold
    3
    # sp109872
    Direct Fit Exhaust Manifold by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but instead...
    5-year / 50,000-mile warranty on converterSpecifically engineered for Manifold Converter equipped vehicles
    $319.76 - $1,132.71
  • CATCO® - Catalytic Converter and Pipe Assembly
    CATCO®Catalytic Converter and Pipe Assembly
    1
    # sp192364
    Catalytic Converter and Pipe Assembly by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance...
    Packed with the latest technological advancementsWill surpass your expectations for performance
    $117.42 - $1,552.56
  • Davico® - Catalytic Converter and Pipe Assembly
    Davico®Catalytic Converter and Pipe Assembly
    16
    # sp128241
    Catalytic Converter and Pipe Assembly by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...
    Helps your vehicle emit harmless gasesDirect OEM replacement
    $64.26 - $4,001.73
  • AP Exhaust® - Direct Fit Catalytic Converter
    AP Exhaust®Direct Fit Catalytic Converter
    11
    # sp93964
    Direct Fit Catalytic Converter by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but...
    5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
    $110.03 - $3,719.88
  • Walker® - Ultra Catalytic Converter and Pipe Assembly
    Walker®Ultra Catalytic Converter and Pipe Assembly
    31
    # sp128223
    Ultra Catalytic Converter and Pipe Assembly by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust...
    Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
    $113.06 - $1,262.11
  • Davico® - Direct Fit Catalytic Converter
    Davico®Direct Fit Catalytic Converter
    14
    # sp13664
    Direct Fit Catalytic Converter by Davico®. This direct-fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is the...
    Helps your vehicle emit harmless gasesDirect OEM replacement
    $47.28 - $3,735.21
  • Walker® - CalCat™ Catalytic Converter and Pipe Assembly
    Walker®CalCat™ Catalytic Converter and Pipe Assembly
    8
    # sp128212
    CalCat™ Catalytic Converter and Pipe Assembly by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers....
    Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
    $331.91 - $2,755.71
  • MagnaFlow® - Universal Fit Catalytic Converter
    MagnaFlow®Universal Fit Catalytic Converter
    3
    # sp96188
    Universal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting...
    $83.00 - $1,906.00
  • Torxe™ - Direct Fit Catalytic Converter
    Torxe™Direct Fit Catalytic Converter
    1
    # sp222948
    Direct Fit Catalytic Converter by Torxe™. Direct Fit Catalytic converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the best possible price with a factory-style unit from Torxe. Fitment is...
    Replace an old clogged, corroded, and malfunctioning unit and clear your check engine light for goodVehicle-specific fitment is designed around the exact dimensions of your make and model for proper fit and easy installation
    $138.00 - $572.00
  • MagnaFlow® - OEM Grade Direct Fit Catalytic Converter
    MagnaFlow®OEM Grade Direct Fit Catalytic Converter
    16
    # sp184176
    OEM Grade Direct Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace...
    $214.00 - $2,612.00
  • Walker® - Universal Fit Catalytic Converter
    Walker®Universal Fit Catalytic Converter
    6
    # sp4304
    Universal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...
    EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
    $139.79 - $2,722.16
  • iD Select® - Standard Direct Fit Catalytic Converter and Pipe Assembly
    iD Select®Standard Direct Fit Catalytic Converter and Pipe Assembly
    0
    # sp224283
    Standard Direct Fit Catalytic Converter and Pipe Assembly by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit,...
    Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value
    $175.54 - $1,052.20
  • AP Exhaust® - Catalytic Converter
    AP Exhaust®Catalytic Converter
    2
    # sp94077
    Catalytic Converter by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not based on vehicle age or use but instead on an...
    Provides professional installer with immediate installation optionsSpecifically engineered for OBDII equipped vehicles
    $80.78 - $1,065.65
  • Davico® - Exhaust Manifold with Integrated Catalytic Converter
    Davico®Exhaust Manifold with Integrated Catalytic Converter
    7
    # sp188839
    Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged Exhaust Manifold with Integrated Catalytic Converter. Once your stock cat fails to...
    Helps your vehicle emit harmless gasesDirect OEM replacement
    $31.58 - $1,311.27
  • iD Select® - ECO II Direct Fit Catalytic Converter and Pipe Assembly
    iD Select®ECO II Direct Fit Catalytic Converter and Pipe Assembly
    0
    # sp224272
    ECO II Direct Fit Catalytic Converter and Pipe Assembly by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form,...
    Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value
    $229.47 - $1,288.43
  • Walker® - Ultra™ Manifold with Integrated Catalytic Converter
    Walker®Ultra™ Manifold with Integrated Catalytic Converter
    3
    # sp187741
    Ultra™ Manifold with Integrated Catalytic Converter by Walker®. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader, for the finest emission control technologies for import and...
    Constructed to meet your vehicle’s specific emissions requirementsDesigned to meet EPA regulations
    $333.89 - $1,109.64
  • CATCO® - Universal Fit Catalytic Converters
    CATCO®Universal Fit Catalytic Converters
    1
    # sp192362
    Universal Fit Catalytic Converters by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance and...
    Packed with the latest technological advancementsWill surpass your expectations for performance
    $59.23 - $837.61
  • Walker® - Ultra™ Catalytic Converters
    Walker®Ultra™ Catalytic Converters
    3
    # sp187740
    Ultra™ Catalytic Converters by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...
    Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
    $62.19 - $535.99
  • CATCO® - Direct Fit Catalytic Converters
    CATCO®Direct Fit Catalytic Converters
    2
    # sp192363
    Direct Fit Catalytic Converters by CATCO®. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs the competition. It delivers unparalleled performance and...
    Packed with the latest technological advancementsWill surpass your expectations for performance
    $135.02 - $983.12
  • Eastern Catalytic® - Converter and Pipe Assembly
    Eastern Catalytic®Converter and Pipe Assembly
    3
    # sp128204
    Converter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
    Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
    $102.47 - $941.27
  • Eastern Catalytic® - Direct Fit Catalytic Converter
    Eastern Catalytic®Direct Fit Catalytic Converter
    4
    # sp4294
    Direct Fit Catalytic Converter by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
    Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
    $139.23 - $1,149.53
  • iD Select® - ECO GM Direct Fit Catalytic Converter and Pipe Assembly
    iD Select®ECO GM Direct Fit Catalytic Converter and Pipe Assembly
    0
    # sp224267
    ECO GM Direct Fit Catalytic Converter and Pipe Assembly by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form,...
    Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value
    $253.11 - $877.43
  • Davico® - Universal Fit Catalytic Converter
    Davico®Universal Fit Catalytic Converter
    0
    # sp132566
    Universal Fit Catalytic Converter by Davico®. This Universal fit catalytic converter by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its job, replacement is...
    Helps your vehicle emit harmless gasesDirect OEM replacement
    $122.58 - $1,656.71
  • DIY Solutions® - Catalytic Converter and Pipe Assembly
    DIY Solutions®Catalytic Converter and Pipe Assembly
    0
    # sp262114
    Catalytic Converter and Pipe Assembly by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out for. When it comes to...
    Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again
    $252.91 - $1,064.83
  • Eastern Catalytic® - ECO GM Direct Fit Converter and Pipe Assembly
    Eastern Catalytic®ECO GM Direct Fit Converter and Pipe Assembly
    4
    # sp207092
    ECO GM Direct Fit Converter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter...
    Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
    $194.78 - $856.07
  • Eastern Catalytic® - ECO II Direct Fit Converter and Pipe Assembly
    Eastern Catalytic®ECO II Direct Fit Converter and Pipe Assembly
    5
    # sp128207
    ECO II Direct Fit Converter and Pipe Assembly by Eastern Catalytic®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter...
    Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
    $196.94 - $1,124.91
  • AP Exhaust® - 608 Series Universal Fit Catalytic Converters
    AP Exhaust®608 Series Universal Fit Catalytic Converters
    1
    # sp256847
    608 Series Universal Fit Catalytic Converters by AP Exhaust®. Three-Way No / Air OBDII by designed US-EPA Compliant catalytic converters are efficient at the oxidation of HC’s and CO, and very efficient at the reduction of NOx,...
    A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
    $137.74 - $368.55
  • iD Select® - ECO GM Exhaust Manifold with Integrated Catalytic Converter
    iD Select®ECO GM Exhaust Manifold with Integrated Catalytic Converter
    0
    # sp224269
    ECO GM Exhaust Manifold with Integrated Catalytic Converter by iD Select®. Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select. It’s built to OEM specifications to offer the same fit, form,...
    Direct OEM replacement for your malfunctioning exhaust partMade to deliver the ultimate in quality, reliability, and value
    $327.51 - $794.48




Shop By Service Type

The Hummer catalytic converter (AKA catcon or cat) was first introduced in the mid-70's, and back then, it performed only two tasks, which is exactly why it was called a two-way converter. It oxidized carbon monoxide to carbon dioxide and hydrocarbons to water and carbon dioxide (oxidation stage). In 1981, the two-way converter was replaced by a much more efficient three-way catcon, which additionally reduced nitrogen oxide emissions (reduction stage).

Today, the two-way version is used in diesel applications only, while most vehicles are equipped with a three-way catalytic converter. Located between the engine and muffler, the converter actually resembles a muffler in shape, though the construction of these two units is completely different. The body of the converter is usually made of stainless steel. Inside the body, you'll find an insulated chamber, which contains three main components of any converter: substrate (or catalyst core), washcoat, and catalyst.

The catalyst core usually has a honeycomb structure, and it's most often a ceramic monolith. Basically, it serves as a support for the washcoat. The washcoat itself is a carrier for the catalytic materials. Materials for the washcoat are chosen to form an irregular surface, which maximizes the catalytically active layer available to react with the exhaust gases. And then comes the catalyst, which is most ofter a mixture of precious metals such as palladium (oxidation catalyst) and rhodium (reduction catalyst). When the exhaust stream passes through the converter, it contacts with the catalyst and all the toxic elements covert into the harmless substances. The leaving gas is monitored by the control system to make sure it meets the emissions requirements.

Featured Brands

Related Categories

Popular Products



Browse by Model

Hummer Catalytic Converters Reviews

1 review
Didn't come with the best gasket, but it works. It was pretty easy to put on. Good quality. I was hoping it a little deeper sound, but it does sound better.
Posted by Alexander (Henderson, NV) / June 18, 20192006 Hummer H3
CARiD FacebookCARiD TwitterCARiD YouTube ChannelCARiD PinterestCARiD Instagram
Inspiration Gallery
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.
CUSTOMER SERVICE
INFORMATION
CONTACTS