Dorman 678-521 Catalytic Converter - Front
Dorman 678-521 Catalytic Converter
Dorman 678-521 is a direct-fit catalytic converter for specific Nissan Maxima front applications from 2009-2014. It is built with stainless steel construction and a ceramic substrate to match original equipment fit and function for a reliable replacement.
Key Features
- Specific-fit catalytic converter for the front position
- Stainless steel body and tube construction
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection
- CARB certified for approved applications
- Includes inlet gasket
- Natural finish with standard replacement grade
Detailed Description
This Dorman catalytic converter, part number 678-521, is engineered for 2009-2014 Nissan Maxima front applications and is listed with CARB Executive Order Number D-798-9. The design uses stainless steel for the body and tubing, a cylindrical body shape, and flanged inlet and outlet connections to support a proper OE-style exhaust repair. For buyers searching for a 2009-2014 Nissan Maxima front catalytic converter or a Dorman 678-521 replacement, this unit is built for specific vehicle fitment rather than universal use. This part cross-references KYB 551128 for the same application.
What It Is Used For
- Replacing a failed or restricted front catalytic converter
- Restoring exhaust flow after converter damage or contamination
- Addressing emissions-related fault codes tied to converter efficiency
- Repairing exhaust leaks at the flanged connection points
- Returning a 2009-2014 Nissan Maxima to proper emissions equipment configuration
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before installation. Confirm flange alignment, gasket condition, and inlet and outlet dimensions during exhaust service. Because this is a specific-fit converter, compare the original unit and mounting points before final assembly. Professional installation is recommended for proper sealing and emissions compliance.
Quality Assurance
Dorman designs this converter to match original equipment fit and function on the listed applications. It is CARB certified for the specified Nissan Maxima fitment and built as a standard replacement part for emissions-system repair.
Original: $925.18
-65%$925.18
$323.81Dorman 678-521 Catalytic Converter - Front
Dorman 678-521 Catalytic Converter
Dorman 678-521 is a direct-fit catalytic converter for specific Nissan Maxima front applications from 2009-2014. It is built with stainless steel construction and a ceramic substrate to match original equipment fit and function for a reliable replacement.
Key Features
- Specific-fit catalytic converter for the front position
- Stainless steel body and tube construction
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection
- CARB certified for approved applications
- Includes inlet gasket
- Natural finish with standard replacement grade
Detailed Description
This Dorman catalytic converter, part number 678-521, is engineered for 2009-2014 Nissan Maxima front applications and is listed with CARB Executive Order Number D-798-9. The design uses stainless steel for the body and tubing, a cylindrical body shape, and flanged inlet and outlet connections to support a proper OE-style exhaust repair. For buyers searching for a 2009-2014 Nissan Maxima front catalytic converter or a Dorman 678-521 replacement, this unit is built for specific vehicle fitment rather than universal use. This part cross-references KYB 551128 for the same application.
What It Is Used For
- Replacing a failed or restricted front catalytic converter
- Restoring exhaust flow after converter damage or contamination
- Addressing emissions-related fault codes tied to converter efficiency
- Repairing exhaust leaks at the flanged connection points
- Returning a 2009-2014 Nissan Maxima to proper emissions equipment configuration
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before installation. Confirm flange alignment, gasket condition, and inlet and outlet dimensions during exhaust service. Because this is a specific-fit converter, compare the original unit and mounting points before final assembly. Professional installation is recommended for proper sealing and emissions compliance.
Quality Assurance
Dorman designs this converter to match original equipment fit and function on the listed applications. It is CARB certified for the specified Nissan Maxima fitment and built as a standard replacement part for emissions-system repair.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dorman 678-521 Catalytic Converter
Dorman 678-521 is a direct-fit catalytic converter for specific Nissan Maxima front applications from 2009-2014. It is built with stainless steel construction and a ceramic substrate to match original equipment fit and function for a reliable replacement.
Key Features
- Specific-fit catalytic converter for the front position
- Stainless steel body and tube construction
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection
- CARB certified for approved applications
- Includes inlet gasket
- Natural finish with standard replacement grade
Detailed Description
This Dorman catalytic converter, part number 678-521, is engineered for 2009-2014 Nissan Maxima front applications and is listed with CARB Executive Order Number D-798-9. The design uses stainless steel for the body and tubing, a cylindrical body shape, and flanged inlet and outlet connections to support a proper OE-style exhaust repair. For buyers searching for a 2009-2014 Nissan Maxima front catalytic converter or a Dorman 678-521 replacement, this unit is built for specific vehicle fitment rather than universal use. This part cross-references KYB 551128 for the same application.
What It Is Used For
- Replacing a failed or restricted front catalytic converter
- Restoring exhaust flow after converter damage or contamination
- Addressing emissions-related fault codes tied to converter efficiency
- Repairing exhaust leaks at the flanged connection points
- Returning a 2009-2014 Nissan Maxima to proper emissions equipment configuration
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before installation. Confirm flange alignment, gasket condition, and inlet and outlet dimensions during exhaust service. Because this is a specific-fit converter, compare the original unit and mounting points before final assembly. Professional installation is recommended for proper sealing and emissions compliance.
Quality Assurance
Dorman designs this converter to match original equipment fit and function on the listed applications. It is CARB certified for the specified Nissan Maxima fitment and built as a standard replacement part for emissions-system repair.
