2003 Chevy Silverado Catalytic Converters

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    • Walker® Direct Fit Catalytic Converter
      (0 reviews)
      # 8742739
      Chevy Silverado 2003, Direct Fit Catalytic Converter by Walker®. This catalytic converter is constructed specially for your vehicle to directly replace the original equipment part and comes ready to install. The part is designed to...
      Designed to meet your vehicle’s specific emissions requirementsDirect fit replacement
      $267.01 - $529.62
    • Walker® Universal Fit Catalytic Converter
      (0 reviews)
      # 17726605
      Chevy Silverado 2003, Universal Catalytic Converter by Walker®. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It is designed to meet the EPA policy and emission...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $85.93 - $157.80
    • Bosal® Catalytic Converter
      (0 reviews)
      # 20556664
      Chevy Silverado 2003, Catalytic Converter by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to vehicle manufacturers and use advanced manufacturing...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $290.63 - $488.53
    • Eastern® Direct Fit Catalytic Converter
      (0 reviews)
      # 17571159
      Chevy Silverado 2003, 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...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $331.80 - $584.86
    • Eastern® Universal Fit Catalytic Converter
      (0 reviews)
      # 17577168
      Chevy Silverado 2003, Universal Fit Catalytic Converter by Eastern Catalytic®. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you definitely need a new one, and this product is the...
      Universal fitConverts harmful engine emissions to less dangerous gases and water vapor
      $64.60 - $154.85
    • DEC® Direct Fit Catalytic Converter
      (0 reviews)
      # 64460857
      Chevy Silverado 1500 2003, Direct Fit Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from a heavy duty...
      Direct fitMade from a heavy duty stainless steel outer shell
      $514.78 - $803.88
    • Bosal® Catalytic Converter
      (0 reviews)
      # 36757547
      Chevy Silverado 1500 4.3L / 4.8L / 5.3L With Y Pipe Converter Assembly 2003, Catalytic Converter by Bosal®. If you’re in need of a replacement catalytic converter, you can’t do better than Bosal. They’re a leading supplier to...
      Constructed to meet your vehicle’s specific emissions requirementsRadial flow concept allows for an even distribution of the gas flow in the converter for the optimal conversion of harmful gases
      $381.51
    • Flowmaster® Direct Fit Stainless Steel Catalytic Converter
      (0 reviews)
      # 34449170
      Chevy Silverado 1500 Base / LS / LT / WT 2003, Direct Fit Stainless Steel Catalytic Converter by Flowmaster®, 2.5" Inlet / 3" Outlet. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $420.74
    • Flowmaster® Direct Fit Stainless Steel California Catalytic Converter
      (0 reviews)
      # 38175892
      Chevy Silverado 4.3L / 4.8L / 5.3L with Flat Spot in OE Middle Pipe 2003, Direct Fit Stainless Steel California Catalytic Converter by Flowmaster®, 2.5" Inlet / 3" Outlet. 33" Length. 5" Width. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $769.00
    • MagnaFlow® Direct Fit Federal Catalytic Converter
      (0 reviews)
      # 61587673
      Chevy Silverado 2003, Direct Fit Federal Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $312.74 - $684.29
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61587674
      Chevy Silverado 2003, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $371.57 - $601.08
    • MagnaFlow® Direct Fit OBDII Catalytic Converter
      (0 reviews)
      # 62246971
      Chevy Silverado 2003, Direct Fit OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $483.39 - $831.16
    • Taylor Cable® Graph-Flex™ Catalytic Converter Collector Gaskets
      (0 reviews)
      # 9376868
      Chevy Silverado V8 2003, Graph-Flex™ Catalytic Converter Collector Gaskets by Taylor Cable®. These durable gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up tight on...
      Malleable stainless steel metal coreGraphite composition sealing material for high heat applications
      $14.04
    • Taylor Cable® XX Carbon™ Catalytic Converter Collector Gaskets
      (0 reviews)
      # 9376935
      Chevy Silverado V8 2003, XX Carbon™ Catalytic Converter Collector Gaskets by Taylor Cable®. All of our XX Carbon exhaust header gaskets are made with Taylor’s proprietary, 100% carbon-felt material construction technology. This...
      Will survive 2000°F exhaust temperatures for extended periodsCarbon felt material on a steel core
      $12.74
    • Weapon-R® CEL Eliminator
      (4 reviews)
      # 290727
      Universal CEL Eliminator by Weapon-R®. CEL Light Eliminator gets rid of the Check Engine Light and will not effect the performance of your vehicle. We carefully test and research the correct amount air / fuel ratio which is needed...
      $45.00
    • Spectre Performance® Exhaust Header Reducer
      (1 reviews)
      # 12056627
      Universal Exhaust Header Reducer by Spectre Performance®. Rooted in racing, Spectre Performance designs and builds every product with the same goal in mind - the best performance in the market proven on the racetrack! All products...
      High-tech engine parts for the most power and best performanceThe finest exterior and interior parts for superior appearance and functionality
      $16.70

    2003 Chevy Silverado Models
    • 2003 Chevy Silverado 1500 Base Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 LS Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 LT Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 SS Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 WT Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 HD LS Catalytic Converters & Components
    • 2003 Chevy Silverado 1500 HD LT Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 Base Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 LS Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 LT Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 HD Base Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 HD LS Catalytic Converters & Components
    • 2003 Chevy Silverado 2500 HD LT Catalytic Converters & Components
    • 2003 Chevy Silverado 3500 Base Catalytic Converters & Components
    • 2003 Chevy Silverado 3500 LS Catalytic Converters & Components
    • 2003 Chevy Silverado 3500 LT Catalytic Converters & Components