
Dorman 678-507 Catalytic Converter - Front
Dorman 678-507 Catalytic Converter
Dorman 678-507 is a specific-fit catalytic converter built for select Nissan applications, including the front position on 2002-2006 Nissan Altima and 2004-2008 Nissan Maxima. It is engineered to match original equipment fit and function for a direct replacement on the listed vehicles.
Key Features
- Specific-fit catalytic converter for confirmed Nissan fitment
- CARB certified and CARB compliant for regulated applications
- New York certified for emissions compliance requirements
- Stainless steel body with ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Outlet gasket and outlet mounting hardware included
- Sensor port count: 1
- Part number: 678-507
Detailed Description
This Dorman catalytic converter is a standard replacement designed around the original equipment layout for the listed Nissan Maxima and Nissan Altima applications. The cylinder-style body uses a stainless steel housing with a ceramic substrate, and the flanged inlet and outlet help maintain the factory exhaust connection style. For buyers searching for a 2002-2006 Nissan Altima front catalytic converter or a 2004-2008 Nissan Maxima front catalytic converter, Dorman 678-507 provides a direct-fit option with emissions compliance credentials for CARB-regulated use.
This part cross-references 208A17Y200 for the same application. The package contents include the converter assembly, outlet gasket, studs, and nuts, supporting a cleaner replacement process on the specified vehicles. Dorman 678-507 is also a relevant search match for front catalytic converter replacement on Nissan Altima and Nissan Maxima models within the listed year ranges.
What It Helps Address
- Failed catalytic converter emissions testing
- Check engine light concerns related to catalyst efficiency
- Exhaust restriction from a damaged or deteriorated converter
- Leaks at the exhaust flange connection points
- Replacement needs after corrosion or internal substrate breakdown
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before ordering. Confirm the exhaust flange pattern, sensor port location, and outlet dimensions against the original part on the vehicle. Because this is a specific-fit converter, installation is most straightforward when the existing exhaust components are in serviceable condition and the mounting surfaces are clean.
For best results, inspect nearby exhaust hangers, gaskets, and sensors during replacement. The included outlet gasket and outlet mounting hardware support installation at the outlet connection, while the flanged design helps align the converter with the factory exhaust layout.
Quality Assurance
Dorman 678-507 is built as a standard replacement catalytic converter with OE-style fit and function for the listed Nissan applications. Its CARB certification, New York certification, stainless steel construction, and ceramic substrate reflect compliance-focused construction for regulated exhaust service.
Compatible With 2002-2006 Nissan Altima, front, and 2004-2008 Nissan Maxima, front.
Original: $955.19
-65%$955.19
$334.32Dorman 678-507 Catalytic Converter - Front
Dorman 678-507 Catalytic Converter
Dorman 678-507 is a specific-fit catalytic converter built for select Nissan applications, including the front position on 2002-2006 Nissan Altima and 2004-2008 Nissan Maxima. It is engineered to match original equipment fit and function for a direct replacement on the listed vehicles.
Key Features
- Specific-fit catalytic converter for confirmed Nissan fitment
- CARB certified and CARB compliant for regulated applications
- New York certified for emissions compliance requirements
- Stainless steel body with ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Outlet gasket and outlet mounting hardware included
- Sensor port count: 1
- Part number: 678-507
Detailed Description
This Dorman catalytic converter is a standard replacement designed around the original equipment layout for the listed Nissan Maxima and Nissan Altima applications. The cylinder-style body uses a stainless steel housing with a ceramic substrate, and the flanged inlet and outlet help maintain the factory exhaust connection style. For buyers searching for a 2002-2006 Nissan Altima front catalytic converter or a 2004-2008 Nissan Maxima front catalytic converter, Dorman 678-507 provides a direct-fit option with emissions compliance credentials for CARB-regulated use.
This part cross-references 208A17Y200 for the same application. The package contents include the converter assembly, outlet gasket, studs, and nuts, supporting a cleaner replacement process on the specified vehicles. Dorman 678-507 is also a relevant search match for front catalytic converter replacement on Nissan Altima and Nissan Maxima models within the listed year ranges.
What It Helps Address
- Failed catalytic converter emissions testing
- Check engine light concerns related to catalyst efficiency
- Exhaust restriction from a damaged or deteriorated converter
- Leaks at the exhaust flange connection points
- Replacement needs after corrosion or internal substrate breakdown
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before ordering. Confirm the exhaust flange pattern, sensor port location, and outlet dimensions against the original part on the vehicle. Because this is a specific-fit converter, installation is most straightforward when the existing exhaust components are in serviceable condition and the mounting surfaces are clean.
For best results, inspect nearby exhaust hangers, gaskets, and sensors during replacement. The included outlet gasket and outlet mounting hardware support installation at the outlet connection, while the flanged design helps align the converter with the factory exhaust layout.
Quality Assurance
Dorman 678-507 is built as a standard replacement catalytic converter with OE-style fit and function for the listed Nissan applications. Its CARB certification, New York certification, stainless steel construction, and ceramic substrate reflect compliance-focused construction for regulated exhaust service.
Compatible With 2002-2006 Nissan Altima, front, and 2004-2008 Nissan Maxima, front.
Product Information
Product Information
Shipping & Returns
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Description
Dorman 678-507 Catalytic Converter
Dorman 678-507 is a specific-fit catalytic converter built for select Nissan applications, including the front position on 2002-2006 Nissan Altima and 2004-2008 Nissan Maxima. It is engineered to match original equipment fit and function for a direct replacement on the listed vehicles.
Key Features
- Specific-fit catalytic converter for confirmed Nissan fitment
- CARB certified and CARB compliant for regulated applications
- New York certified for emissions compliance requirements
- Stainless steel body with ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Outlet gasket and outlet mounting hardware included
- Sensor port count: 1
- Part number: 678-507
Detailed Description
This Dorman catalytic converter is a standard replacement designed around the original equipment layout for the listed Nissan Maxima and Nissan Altima applications. The cylinder-style body uses a stainless steel housing with a ceramic substrate, and the flanged inlet and outlet help maintain the factory exhaust connection style. For buyers searching for a 2002-2006 Nissan Altima front catalytic converter or a 2004-2008 Nissan Maxima front catalytic converter, Dorman 678-507 provides a direct-fit option with emissions compliance credentials for CARB-regulated use.
This part cross-references 208A17Y200 for the same application. The package contents include the converter assembly, outlet gasket, studs, and nuts, supporting a cleaner replacement process on the specified vehicles. Dorman 678-507 is also a relevant search match for front catalytic converter replacement on Nissan Altima and Nissan Maxima models within the listed year ranges.
What It Helps Address
- Failed catalytic converter emissions testing
- Check engine light concerns related to catalyst efficiency
- Exhaust restriction from a damaged or deteriorated converter
- Leaks at the exhaust flange connection points
- Replacement needs after corrosion or internal substrate breakdown
Installation Notes and Tips
Verify the vehicle year, make, model, and front position before ordering. Confirm the exhaust flange pattern, sensor port location, and outlet dimensions against the original part on the vehicle. Because this is a specific-fit converter, installation is most straightforward when the existing exhaust components are in serviceable condition and the mounting surfaces are clean.
For best results, inspect nearby exhaust hangers, gaskets, and sensors during replacement. The included outlet gasket and outlet mounting hardware support installation at the outlet connection, while the flanged design helps align the converter with the factory exhaust layout.
Quality Assurance
Dorman 678-507 is built as a standard replacement catalytic converter with OE-style fit and function for the listed Nissan applications. Its CARB certification, New York certification, stainless steel construction, and ceramic substrate reflect compliance-focused construction for regulated exhaust service.
Compatible With 2002-2006 Nissan Altima, front, and 2004-2008 Nissan Maxima, front.












