HomeOP Converters OPCG4042A Catalytic Converter
Part #: OPCG4042A

OP Converters OPCG4042A Catalytic Converter

⚙️ 56 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chevrolet, and GMC, Avalanche 1500, Escalade, Sierra 1500, Sierra 1500 Classic, Sierra 2500, Silverado 1500, Silverado 1500 Classic, Silverado 2500, Suburban 1500, Tahoe, Yukon, and Yukon XL 1500
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Reliable Catalytic Converter for GM Trucks and SUVs

The OP Converters OPCG4042A catalytic converter is designed to meet emission standards for select Cadillac, Chevrolet, and GMC vehicles. Engineered for models like the Chevrolet Silverado 1500 and GMC Sierra 2500, this converter helps maintain optimal exhaust performance and reduces harmful emissions.

  • Compatible with Cadillac Escalade, Chevrolet Avalanche 1500, Silverado 1500 Classic, Suburban 1500, Tahoe, and GMC Sierra 1500 Classic, Sierra 2500, Yukon, Yukon XL 1500
  • Direct fit replacement for OE catalytic converters
  • Constructed to meet EPA and CARB emission requirements where applicable
  • Durable materials designed for long service life under normal operating conditions
  • Part number OPCG4042A ensures precise fitment and performance

Product Details and Compatibility

This OP Converters catalytic converter (OPCG4042A) is specifically engineered for use in a range of GM full-size trucks and SUVs. It supports vehicles such as the Chevrolet Silverado 1500 and GMC Sierra 2500, as well as Cadillac Escalade and Yukon models. The converter is designed to replace the original equipment part, ensuring proper fit and function without modification. Its construction supports effective catalytic reduction of exhaust emissions, helping vehicles comply with environmental regulations.

Common Applications and Problem Resolution

  • Replacement for clogged or damaged catalytic converters causing reduced engine performance
  • Helps resolve check engine light issues related to emission control system faults
  • Restores proper exhaust flow and reduces harmful emissions
  • Addresses failed emissions tests due to converter inefficiency
  • Prevents exhaust leaks that can affect vehicle operation and safety

Installation Notes and Tips

Installation of the OPCG4042A catalytic converter should be performed by a qualified technician familiar with GM exhaust systems. Ensure the vehicle is properly supported and cooled before beginning work. Verify the part number and fitment against the vehicle’s VIN and model specifications. Use appropriate tools to avoid damage to the converter or exhaust components during installation.

Quality Assurance and Warranty

OP Converters manufactures this catalytic converter to meet or exceed OEM standards for durability and emissions compliance. While specific warranty details are not provided, OP Converters products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.

This part fits 56 vehicles. Search below:

YearMakeModelSubmodelBody Type# DoorsLitersCylindersFuel TypePositionNotes
2007ChevroletSilverado 1500 Classic4.3LV6N/ADirect Fit
2007GMCSierra 1500 Classic4.3LV6N/ADirect Fit
2006ChevroletSilverado 15004.3LV6N/ADirect Fit
2006ChevroletSuburban 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2006GMCSierra 1500Extended Cab Pickup4.3LV6N/ADirect Fit
2006GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2006GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005CadillacEscalade5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005ChevroletAvalanche 1500N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005ChevroletSilverado 1500BaseExtended Cab Pickup4 Door5.3LV8GASN/ADirect Fit
2005ChevroletSuburban 1500LTGASN/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005ChevroletTahoe5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005GMCSierra 1500BaseExtended Cab Pickup4 Door5.3LV8FLEXN/ADirect Fit
2005GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2005GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004CadillacEscalade5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004ChevroletAvalanche 1500GASN/ADirect Fit
2004ChevroletSilverado 1500Z71 Off-RoadExtended Cab Pickup4 Door5.3LV8GASN/ADirect Fit
2004ChevroletSuburban 1500LTGASN/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004ChevroletTahoe5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004GMCSierra 15005.3LV8N/ADirect Fit
2004GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2003CadillacEscalade5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2003ChevroletAvalanche 1500N/ADirect Fit
2003ChevroletSilverado 15005.3LV8N/ADirect Fit
2003ChevroletSuburban 1500N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2003ChevroletTahoe5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2003GMCSierra 15005.3LV8N/ADirect Fit
2003GMCYukonSLT5.3LV8GASN/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2003GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2002CadillacEscalade5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2002ChevroletAvalanche 1500BaseGASN/ADirect Fit
2002ChevroletSilverado 15004.3LV6N/ADirect Fit
2002ChevroletSuburban 1500LT5.3LV8GASN/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2002ChevroletTahoeLT5.3LV8GASN/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2002GMCSierra 15005.3LV8N/ADirect Fit
2002GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2002GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2001ChevroletSilverado 1500Base4 Door5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2001ChevroletTahoe5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2001GMCSierra 15005.3LV8N/ADirect Fit
2001GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2001GMCYukon XL 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2000ChevroletSilverado 15005.3LV8N/ADirect Fit
2000ChevroletSilverado 25005.3LV8N/ADirect Fit
2000ChevroletSuburban 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2000ChevroletTahoe5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2000GMCSierra 15005.3LV8N/ADirect Fit
2000GMCSierra 25005.3LV8N/ADirect Fit
2000GMCYukon5.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2000GMCYukon XL 1500N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
1999ChevroletSilverado 15005.3LV8N/ADirect Fit
1999ChevroletSilverado 2500BaseStandard Cab Pickup2 Door5.3LV8N/ADirect Fit
1999GMCSierra 15005.3LV8N/ADirect Fit
1999GMCSierra 2500Standard Cab Pickup5.3LV8N/ADirect Fit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.