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GMC Sierra 1500 Catalytic Converters

This page brings together catalytic converters for the GMC Sierra 1500, covering model years 1999 through 2024. The range includes direct-fit and universal options, along with OE replacement and manifold styles in materials such as stainless steel. Choose your model year above and this page keeps only the catalytic converters that fit your GMC Sierra 1500. Each listing is matched to our vehicle fitment data before it appears here.

31 - 60 of 85 results

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Picture of Magnaflow OEM Grade Direct-Fit Catalytic Converter

Magnaflow OEM Grade Direct-Fit Catalytic Converter

45 reviews
Vehicle Specific
from $424
In Stock (10+)
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Picture of Bosal Direct-Fit Catalytic Converter EPA Compliant

Bosal Direct-Fit Catalytic Converter EPA Compliant

15 reviews
Vehicle Specific
from $153
In Stock (10+)
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Picture of Walker Exhaust CalCat CARB Universal Catalytic Converter Inlet/Outlet

Walker Exhaust CalCat CARB Universal Catalytic Converter Inlet/Outlet

70 reviews
Vehicle Specific
from $147
In Stock (10+)
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Picture of Magnaflow Universal Catalytic Converter CARB Compliant California Grade

Magnaflow Universal Catalytic Converter CARB Compliant California Grade

26 reviews
Vehicle Specific
from $182
In Stock (10+)
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Picture of AP Exhaust CARB Compliant Universal OBD-II Catalytic Converter

AP Exhaust CARB Compliant Universal OBD-II Catalytic Converter

19 reviews
Vehicle Specific
from $262
4 left at this price
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Picture of Bosal Direct-Fit Catalytic Converter

Bosal Direct-Fit Catalytic Converter

64 reviews
Vehicle Specific
from $105
In Stock (10+)
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Picture of Bosal Universal Catalytic Converter EPA Compliant Representative Photo, actual item may vary

Bosal Universal Catalytic Converter EPA Compliant

12 reviews
Vehicle Specific
from $74
In Stock (10+)
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Picture of Magnaflow 459006 Universal Catalytic Converter 2.50 Inch Inlet/Outlet

Magnaflow 459006 Universal Catalytic Converter 2.50 Inch Inlet/Outlet

46 reviews
Part: 459006
Vehicle Specific
$504.00
In Stock (10)
Picture for manufacturer Magnaflow
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Picture of Catco Universal OBDII Catalytic Converter

Catco Universal OBDII Catalytic Converter

15 reviews
Vehicle Specific
from $141
In Stock (10+)
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Picture of Magnaflow 337304 Universal Catalytic Converter 2.00 Inch Inlet/Outlet

Magnaflow 337304 Universal Catalytic Converter 2.00 Inch Inlet/Outlet

19 reviews
Part: 337304
Vehicle Specific
$290.00
3 left at this price
Picture for manufacturer Magnaflow
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Picture of Bosal Universal Catalytic Converter Federal EPA Compliant Representative Photo, actual item may vary

Bosal Universal Catalytic Converter Federal EPA Compliant

75 reviews
Vehicle Specific
from $71
In Stock (10+)
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Picture of Magnaflow OEM Grade Universal Catalytic Converter

Magnaflow OEM Grade Universal Catalytic Converter

50 reviews
Vehicle Specific
from $172
In Stock (10+)
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Picture of MagnaFlow Universal Catalytic Converter

MagnaFlow Universal Catalytic Converter

72 reviews
Vehicle Specific
from $259
In Stock (10+)
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Picture of Magnaflow 447209 Universal Catalytic Converter 3 Inch Inlet/Outlet

Magnaflow 447209 Universal Catalytic Converter 3 Inch Inlet/Outlet

70 reviews
Part: 447209
Vehicle Specific
$390.00
1 left at this price
Picture for manufacturer Magnaflow
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Picture of Magnaflow 444005 Universal Catalytic Converter 2.25 Inch Inlet/Outlet

Magnaflow 444005 Universal Catalytic Converter 2.25 Inch Inlet/Outlet

58 reviews
Part: 444005
Vehicle Specific
$371.00
In Stock (10+)
Picture for manufacturer Magnaflow
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Picture of Magnaflow 99106HM Universal Catalytic Converter 2.5in Inlet/Outlet HM Grade Federal EPA

Magnaflow 99106HM Universal Catalytic Converter 2.5in Inlet/Outlet HM Grade Federal EPA

62 reviews
Part: 99106HM
Vehicle Specific
$170.00
In Stock (10+)
Picture for manufacturer Magnaflow
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Picture of Magnaflow 444085 Universal Catalytic Converter 2.25 Inch Inlet/Outlet

Magnaflow 444085 Universal Catalytic Converter 2.25 Inch Inlet/Outlet

39 reviews
Part: 444085
Vehicle Specific
$380.00
1 left at this price
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Picture of Walker Exhaust Ultra EX EPA Direct Fit Catalytic Converter

Walker Exhaust Ultra EX EPA Direct Fit Catalytic Converter

11 reviews
Vehicle Specific
from $372
In Stock (5)
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Picture of Magnaflow California CARB Compliant Direct-Fit Catalytic Converter

Magnaflow California CARB Compliant Direct-Fit Catalytic Converter

51 reviews
Vehicle Specific
from $180
In Stock (10+)
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Picture of Catco Federal EPA Catalytic Converter Direct Fit Stainless Steel

Catco Federal EPA Catalytic Converter Direct Fit Stainless Steel

19 reviews
Vehicle Specific
from $270
In Stock (10+)
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Picture of Catco Direct Fit Catalytic Converter Federal EPA Approved

Catco Direct Fit Catalytic Converter Federal EPA Approved

70 reviews
Vehicle Specific
from $99
In Stock (10+)
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Picture of Catco Universal OBDII Catalytic Converter Federal EPA

Catco Universal OBDII Catalytic Converter Federal EPA

56 reviews
Vehicle Specific
from $141
In Stock (10+)
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Picture of Magnaflow California Grade CARB Compliant Direct-Fit Catalytic Converter

Magnaflow California Grade CARB Compliant Direct-Fit Catalytic Converter

43 reviews
Vehicle Specific
from $535
In Stock (10+)
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Picture of Magnaflow California Direct-Fit Catalytic Converter

Magnaflow California Direct-Fit Catalytic Converter

22 reviews
Vehicle Specific
from $507
In Stock (10+)
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Picture of Catco Universal Catalytic Converter - Federal EPA OBD-II

Catco Universal Catalytic Converter - Federal EPA OBD-II

76 reviews
Vehicle Specific
from $204
In Stock (10+)
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Picture of Bosal Universal Catalytic Converter

Bosal Universal Catalytic Converter

77 reviews
Vehicle Specific
from $91
In Stock (10+)
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Picture of Walker Exhaust CARB Compliant Catalytic Converter Representative Photo, actual item may vary

Walker Exhaust CARB Compliant Catalytic Converter

13 reviews
Vehicle Specific
from $281
In Stock (10+)
Picture for manufacturer Walker Exhaust
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Picture of AP Exhaust CARB Compliant Direct-Fit OBD-II Catalytic Converter

AP Exhaust CARB Compliant Direct-Fit OBD-II Catalytic Converter

70 reviews
Vehicle Specific
from $346
In Stock (10+)
Picture for manufacturer AP Exhaust
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Picture of Catco Universal Catalytic Converter

Catco Universal Catalytic Converter

76 reviews
Vehicle Specific
from $148
In Stock (10+)
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Picture of Magnaflow California CARB Direct-Fit Catalytic Converter

Magnaflow California CARB Direct-Fit Catalytic Converter

13 reviews
Vehicle Specific
from $422
In Stock (10+)
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What's here for your GMC Sierra 1500

  • Direct-fit catalytic converters
  • Universal catalytic converters
  • OE replacement catalytic converters
  • Manifold catalytic converters
  • Stainless steel catalytic converters

The widest selection here comes from Magnaflow, AP Exhaust, Catco, and Walker Exhaust. Other categories GMC Sierra 1500 owners shop for: GMC Sierra 1500 Shocks and Struts, GMC Sierra 1500 Springs and Suspension Parts and GMC Sierra 1500 Exterior Lights, or browse all GMC Sierra 1500 parts and accessories.