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Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left
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Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left

Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left

Dorman 673-640 Catalytic Converter Manifold

Dorman 673-640 is a catalytic converter with integrated exhaust manifold built for specific Lexus applications. It combines the manifold and converter in a one-piece design with a ceramic substrate, flanged inlet and outlet, and CARB certification for regulated emissions service.

Key Features

  • Integrated exhaust manifold and catalytic converter in a one-piece assembly
  • CARB certified and CARB compliant, with Executive Order D-798-9
  • Fits 2006 Lexus GS300, left
  • Fits 2006-2012 Lexus IS250, left
  • Stainless steel converter body with natural finish
  • Ceramic substrate material for emissions control service
  • Includes inlet gasket, outlet gasket, inlet mounting hardware, and outlet mounting hardware
  • One sensor port, flanged inlet and outlet, round ports

Detailed Description

This Dorman catalytic converter manifold is engineered to match original equipment fit and function on select Lexus models. Part number 673-640 is built for the left side on 2006 Lexus GS300 and 2006-2012 Lexus IS250 applications, making it a direct-fit replacement for vehicles that require a CARB-certified exhaust manifold converter assembly. The stainless steel body, ceramic substrate, and OE-style flange layout support proper exhaust routing and emissions system operation.

For buyers searching for a 2006 Lexus GS300 left catalytic converter manifold or a 2006-2012 Lexus IS250 left exhaust manifold converter, Dorman 673-640 provides the correct configuration for those listed applications. This part cross-references 1715031040 for the same application.

Common Issues This Part May Address

  • Failed emissions testing due to a worn or damaged converter assembly
  • Exhaust leaks at the manifold or flange connection points
  • Check engine light concerns related to converter efficiency or sensor readings
  • Cracked or deteriorated integrated manifold housing
  • Restricted exhaust flow from a damaged catalytic converter substrate

Installation Notes and Tips

Verify the vehicle year, model, and left-side application before installation. Confirm flange alignment, gasket placement, and sensor port location against the original unit. Because this is a CARB-certified replacement, it is intended for the listed Lexus applications and should be matched to the vehicle’s emissions requirements before service begins.

Quality Assurance

Dorman manufactures this manifold converter as a precision-engineered replacement for specific OE applications. CARB certification and Executive Order D-798-9 support compliance for the listed vehicles, including Lexus GS300 and Lexus IS250 fitments.

$1,032.55
Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left—
$1,032.55

Dorman 673-640 Catalytic Converter with Integrated Exhaust Manifold - Left

Dorman 673-640 Catalytic Converter Manifold

Dorman 673-640 is a catalytic converter with integrated exhaust manifold built for specific Lexus applications. It combines the manifold and converter in a one-piece design with a ceramic substrate, flanged inlet and outlet, and CARB certification for regulated emissions service.

Key Features

  • Integrated exhaust manifold and catalytic converter in a one-piece assembly
  • CARB certified and CARB compliant, with Executive Order D-798-9
  • Fits 2006 Lexus GS300, left
  • Fits 2006-2012 Lexus IS250, left
  • Stainless steel converter body with natural finish
  • Ceramic substrate material for emissions control service
  • Includes inlet gasket, outlet gasket, inlet mounting hardware, and outlet mounting hardware
  • One sensor port, flanged inlet and outlet, round ports

Detailed Description

This Dorman catalytic converter manifold is engineered to match original equipment fit and function on select Lexus models. Part number 673-640 is built for the left side on 2006 Lexus GS300 and 2006-2012 Lexus IS250 applications, making it a direct-fit replacement for vehicles that require a CARB-certified exhaust manifold converter assembly. The stainless steel body, ceramic substrate, and OE-style flange layout support proper exhaust routing and emissions system operation.

For buyers searching for a 2006 Lexus GS300 left catalytic converter manifold or a 2006-2012 Lexus IS250 left exhaust manifold converter, Dorman 673-640 provides the correct configuration for those listed applications. This part cross-references 1715031040 for the same application.

Common Issues This Part May Address

  • Failed emissions testing due to a worn or damaged converter assembly
  • Exhaust leaks at the manifold or flange connection points
  • Check engine light concerns related to converter efficiency or sensor readings
  • Cracked or deteriorated integrated manifold housing
  • Restricted exhaust flow from a damaged catalytic converter substrate

Installation Notes and Tips

Verify the vehicle year, model, and left-side application before installation. Confirm flange alignment, gasket placement, and sensor port location against the original unit. Because this is a CARB-certified replacement, it is intended for the listed Lexus applications and should be matched to the vehicle’s emissions requirements before service begins.

Quality Assurance

Dorman manufactures this manifold converter as a precision-engineered replacement for specific OE applications. CARB certification and Executive Order D-798-9 support compliance for the listed vehicles, including Lexus GS300 and Lexus IS250 fitments.

Product Information

Shipping & Returns

Description

Dorman 673-640 Catalytic Converter Manifold

Dorman 673-640 is a catalytic converter with integrated exhaust manifold built for specific Lexus applications. It combines the manifold and converter in a one-piece design with a ceramic substrate, flanged inlet and outlet, and CARB certification for regulated emissions service.

Key Features

  • Integrated exhaust manifold and catalytic converter in a one-piece assembly
  • CARB certified and CARB compliant, with Executive Order D-798-9
  • Fits 2006 Lexus GS300, left
  • Fits 2006-2012 Lexus IS250, left
  • Stainless steel converter body with natural finish
  • Ceramic substrate material for emissions control service
  • Includes inlet gasket, outlet gasket, inlet mounting hardware, and outlet mounting hardware
  • One sensor port, flanged inlet and outlet, round ports

Detailed Description

This Dorman catalytic converter manifold is engineered to match original equipment fit and function on select Lexus models. Part number 673-640 is built for the left side on 2006 Lexus GS300 and 2006-2012 Lexus IS250 applications, making it a direct-fit replacement for vehicles that require a CARB-certified exhaust manifold converter assembly. The stainless steel body, ceramic substrate, and OE-style flange layout support proper exhaust routing and emissions system operation.

For buyers searching for a 2006 Lexus GS300 left catalytic converter manifold or a 2006-2012 Lexus IS250 left exhaust manifold converter, Dorman 673-640 provides the correct configuration for those listed applications. This part cross-references 1715031040 for the same application.

Common Issues This Part May Address

  • Failed emissions testing due to a worn or damaged converter assembly
  • Exhaust leaks at the manifold or flange connection points
  • Check engine light concerns related to converter efficiency or sensor readings
  • Cracked or deteriorated integrated manifold housing
  • Restricted exhaust flow from a damaged catalytic converter substrate

Installation Notes and Tips

Verify the vehicle year, model, and left-side application before installation. Confirm flange alignment, gasket placement, and sensor port location against the original unit. Because this is a CARB-certified replacement, it is intended for the listed Lexus applications and should be matched to the vehicle’s emissions requirements before service begins.

Quality Assurance

Dorman manufactures this manifold converter as a precision-engineered replacement for specific OE applications. CARB certification and Executive Order D-798-9 support compliance for the listed vehicles, including Lexus GS300 and Lexus IS250 fitments.

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