OP Converters OPCG4033 Catalytic Converter

Brand OP Converters OPCG4033
Fits Chevrolet and GMC · 18 vehicles

Direct-fit catalytic converter replacement for straightforward installation.

Restores exhaust flow and emissions control performance.

$510.19Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
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Free returns within 60 days if it doesn't fit when fitment is verified.

OP Converters OPCG4033 Catalytic Converter

OP Converters OPCG4033 is a direct-fit catalytic converter for select Chevrolet Express 1500, Chevrolet Express 2500, GMC Savana 1500, and GMC Savana 2500 applications. It is built for vehicles in the 2003-2008 range, with fitment varying by model year and emissions configuration.

Key Features

  • Direct-fit catalytic converter for OE-style replacement
  • Fits 2005-2008 Chevrolet Express 1500, N/A
  • Fits 2003 Chevrolet Express 1500, N/A
  • Fits 2003-2008 GMC Savana 1500, N/A
  • Fits 2003-2005 Chevrolet Express 2500, N/A
  • Fits 2003-2005 GMC Savana 2500, N/A
  • Federal 47-state application for 2004 Chevrolet Express 1500; not legal for sale in CA, NY, or ME
  • Part number OPCG4033 for catalog and fitment lookup

Product Details

This catalytic converter is intended for direct replacement on listed Chevrolet Express and GMC Savana vans. Use OPCG4033 when you need a replacement exhaust emissions component that matches the confirmed year, make, and model coverage shown above. The fitment data includes both standard direct-fit applications and one federal-only 47-state listing, so emissions compliance should be verified before ordering.

Common Issues It Can Address

  • Failed emissions inspection due to a worn catalytic converter
  • Check engine light related to catalyst efficiency faults
  • Restricted exhaust flow from a deteriorated converter substrate
  • Rattling or damaged internal converter material
  • Replacement needs after exhaust system corrosion or age-related failure

Installation Notes

Confirm the exact year, model, and emissions configuration before installation. The 2004 Chevrolet Express 1500 listing is federal 47-state only and is not legal for sale in California, New York, or Maine. Verify all exhaust connections, sensors, and mounting points against the vehicle before final assembly.

Quality Assurance

OP Converters OPCG4033 is cataloged as a direct-fit catalytic converter for the listed Chevrolet Express and GMC Savana applications. Review local emissions requirements and vehicle-specific fitment details before purchase.

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody Type# DoorsLitersCylindersFuel TypePositionNotes
2008ChevroletExpress 1500BaseStandard Cargo Van4 Door5.3LV8FLEXN/ADirect Fit
2008GMCSavana 15005.3LV8FLEXN/ADirect Fit
2007ChevroletExpress 15005.3LV8FLEXN/ADirect Fit
2007GMCSavana 15005.3LV8FLEXN/ADirect Fit
2006ChevroletExpress 15004.3LV6N/ADirect Fit
2006GMCSavana 1500Standard Cargo Van4 Door4.3LV6N/ADirect Fit
2005ChevroletExpress 15004.3LV6N/ADirect Fit
2005ChevroletExpress 25004.3LV6N/ADirect Fit
2005GMCSavana 15004.3LV6N/ADirect Fit
2005GMCSavana 25004.3LV6N/ADirect Fit
2004ChevroletExpress 15005.3LV8N/AFederal, 47-State Only, Not legal for sale in CA, NY or ME
2004ChevroletExpress 25004.3LV6N/ADirect Fit
2004GMCSavana 15004.3LV6N/ADirect Fit
2004GMCSavana 25004.3LV6N/ADirect Fit
2003ChevroletExpress 15004.3LV6N/ADirect Fit
2003ChevroletExpress 25004.3LV6N/ADirect Fit
2003GMCSavana 15004.3LV6N/ADirect Fit
2003GMCSavana 25004.3LV6N/ADirect Fit