2004 GMC SIERRA 2500 HD Catalytic Converters

Catalytic Converter, CalCal Universal, One Inlet, 3 in., One Outlet, 3 in., Stainless Steel, Ceramic Honeycomb, Each

Part Number: WLK-83404

5.0 out of 5 stars ( 1 )

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Catalytic Converters, Universal, 3-way, Stainless Steel Case, 3.000 in. Slip Fit Inlet/Outlet, 13.000 in. Overall Length, Each

Part Number: MPE-447209

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Catalytic Converters, Universal, Stainless Steel Case, 3.000 in. Slip Fit Inlet/Outlet, 13.250 in. Overall Length, Each

Part Number: WLK-93239

4.5 out of 5 stars ( 2 )

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Catalytic Converter, Stainless Steel, Ford, 6.0, 7.3L, Each

Part Number: MPE-60110

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Catalytic Converters, Direct-Fit, Stock Flange Inlet, 3.00 in. Slip fit Outlet, 88.00 in. Overall Length, Right, Chevrolet, GMC, Each

Part Number: APH-645783

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, Stainless Steel, 3.00 in. Inlet, 3.00 in. Outlet, 8.75 in. Length, Universal, Each

Part Number: MPE-51659

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Catalytic Converter, Universal, One Inlet, Ceramic Honeycomb, Stainless Steel, 3 in. Slip Fit Inlet/Outlet, 11.50 in. Length, Each

Part Number: MPE-99759HM

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Catalytic Converter, Stainless Steel, Universal, 3.0 in. Inlet/Outlet, 8.00 in. Length, Each

Part Number: MPE-99659HM

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Estimated Ship Date: Feb 24, 2026 if ordered today

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Catalytic Converter, Direct-Fit, Stainless Steel, Each

Part Number: WLK-55557

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Estimated Ship Date: Feb 26, 2026 if ordered today

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Catalytic Converter, 3-way Style, Stainless Steel Case, Each

Part Number: MPE-51759

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Direct-Fit, GM, Each

Part Number: MPE-93480

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, Ultra Direct Fit, Stock Flange Inlet, Slip Fit Outlet, Ceramic Honeycomb, Heat Flange, Chevrolet, GMC, Each

Part Number: WLK-53726

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Estimated Ship Date: Feb 26, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Each

Part Number: MPE-49642

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 24, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Direct-Fit, GM, Each

Part Number: MPE-93479

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EPA OBDII Direct Fit Converter

Part Number: CTO-9878

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Estimated Ship Date: Feb 16, 2026 if ordered today

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EPA OBDII Direct Fit Converter 03-06 Chevy Silverado 2500 HD, 3500 HD 8 cyl., 6.0L, California emisions, left,

Part Number: CTO-9877

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 18, 2026 if ordered today

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Catalytic Converter, 3-way, Stainless Steel Case, 3 in. Slip Fit Inlet/Outlet, Front, Each

Part Number: MPE-447109

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, Direct-Fit Catalytic Converter

Part Number: MPE-52493

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Right Position, 23.250 in. Overall Length, Chevrolet, GMC, 6.0L/8.1L, Each

Part Number: MPE-4551006

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, California Grade, Direct-Fit, Stainless Steel Case, Right Position, 32.250 in. Overall Length, Chevrolet, GMC, 6.0L, Each

Part Number: MPE-4551479

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, Stainless Steel, Chevy, GMC, 6.0, 8.1L, Passenger Side, Each

Part Number: MPE-49006

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter, OEM Grade, Federal/EPA Compliant, Direct-Fit, Stainless Steel Case, 23.250 in. Overall Length, Chevy, GMC, Each

Part Number: MPE-21-989

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Catalytic Converter - Direct Fit

Part Number: CTO-9990

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Catalytic Converter, Direct-Fit, Stainless Steel, Chevy, GMC, 6.6L Diesel, Each

Part Number: MPE-60501

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Ultra EPA Catalytic Converter

Part Number: WLK-14625

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Estimated Ship Date: Feb 26, 2026 if ordered today

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