
Dorman 679-578 Catalytic Converter with Integrated Exhaust Manifold
Dorman 679-578 Catalytic Converter Manifold
Dorman 679-578 is a catalytic converter with integrated exhaust manifold for specific Nissan Altima applications. This manifold converter is built as a direct-fit, standard replacement with a flanged inlet and outlet, stainless steel construction, and a ceramic substrate for OE-style exhaust routing and emissions control.
Key Features
- Direct-fit catalytic converter with integrated exhaust manifold
- Specific fit for 2019-2021 Nissan Altima
- Stainless steel body with uncoated metallic gray finish
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Heat shield attached and inlet gasket included
- Standard replacement grade for factory-style service
- Part number 679-578 for catalog and cross-reference use
Detailed Description
This Dorman manifold converter is precision-engineered to match the original equipment layout on the Nissan Altima, helping restore proper exhaust flow and catalytic function at the manifold location. The one-piece design uses stainless steel construction, a round body shape, and a ceramic substrate to support emissions system service on 2019, 2020, and 2021 Nissan Altima models. Dorman 679-578 is a direct replacement for vehicles requiring a flanged, integrated exhaust manifold catalytic converter, and it cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Repair Uses
- Replacing a cracked or leaking exhaust manifold converter
- Restoring exhaust sealing at the flanged inlet or outlet
- Addressing catalyst efficiency faults tied to the manifold converter
- Repairing exhaust noise caused by manifold or gasket leakage
- Servicing OE-style emissions hardware on a Nissan Altima
Installation Notes and Tips
Compatible With 2019-2021 Nissan Altima, N/A. Verify flange alignment, inlet and outlet diameter requirements, and mounting-hole count before installation. The inlet gasket is included, while inlet mounting hardware and clamps are not listed as included. Because this is a specific-fit manifold converter, compare the original unit, heat shield layout, and exhaust routing to confirm proper placement before assembly.
Quality Assurance
Dorman manufactures this catalytic converter with integrated exhaust manifold as a standard replacement part engineered to match OE specifications for the listed Nissan Altima applications. Part number 679-578 is built for direct-fit service and emissions-system replacement on the confirmed vehicle coverage.
Dorman 679-578 Catalytic Converter with Integrated Exhaust Manifold
Dorman 679-578 Catalytic Converter Manifold
Dorman 679-578 is a catalytic converter with integrated exhaust manifold for specific Nissan Altima applications. This manifold converter is built as a direct-fit, standard replacement with a flanged inlet and outlet, stainless steel construction, and a ceramic substrate for OE-style exhaust routing and emissions control.
Key Features
- Direct-fit catalytic converter with integrated exhaust manifold
- Specific fit for 2019-2021 Nissan Altima
- Stainless steel body with uncoated metallic gray finish
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Heat shield attached and inlet gasket included
- Standard replacement grade for factory-style service
- Part number 679-578 for catalog and cross-reference use
Detailed Description
This Dorman manifold converter is precision-engineered to match the original equipment layout on the Nissan Altima, helping restore proper exhaust flow and catalytic function at the manifold location. The one-piece design uses stainless steel construction, a round body shape, and a ceramic substrate to support emissions system service on 2019, 2020, and 2021 Nissan Altima models. Dorman 679-578 is a direct replacement for vehicles requiring a flanged, integrated exhaust manifold catalytic converter, and it cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Repair Uses
- Replacing a cracked or leaking exhaust manifold converter
- Restoring exhaust sealing at the flanged inlet or outlet
- Addressing catalyst efficiency faults tied to the manifold converter
- Repairing exhaust noise caused by manifold or gasket leakage
- Servicing OE-style emissions hardware on a Nissan Altima
Installation Notes and Tips
Compatible With 2019-2021 Nissan Altima, N/A. Verify flange alignment, inlet and outlet diameter requirements, and mounting-hole count before installation. The inlet gasket is included, while inlet mounting hardware and clamps are not listed as included. Because this is a specific-fit manifold converter, compare the original unit, heat shield layout, and exhaust routing to confirm proper placement before assembly.
Quality Assurance
Dorman manufactures this catalytic converter with integrated exhaust manifold as a standard replacement part engineered to match OE specifications for the listed Nissan Altima applications. Part number 679-578 is built for direct-fit service and emissions-system replacement on the confirmed vehicle coverage.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dorman 679-578 Catalytic Converter Manifold
Dorman 679-578 is a catalytic converter with integrated exhaust manifold for specific Nissan Altima applications. This manifold converter is built as a direct-fit, standard replacement with a flanged inlet and outlet, stainless steel construction, and a ceramic substrate for OE-style exhaust routing and emissions control.
Key Features
- Direct-fit catalytic converter with integrated exhaust manifold
- Specific fit for 2019-2021 Nissan Altima
- Stainless steel body with uncoated metallic gray finish
- Ceramic substrate material
- Flanged inlet and flanged outlet for OE-style connection points
- Heat shield attached and inlet gasket included
- Standard replacement grade for factory-style service
- Part number 679-578 for catalog and cross-reference use
Detailed Description
This Dorman manifold converter is precision-engineered to match the original equipment layout on the Nissan Altima, helping restore proper exhaust flow and catalytic function at the manifold location. The one-piece design uses stainless steel construction, a round body shape, and a ceramic substrate to support emissions system service on 2019, 2020, and 2021 Nissan Altima models. Dorman 679-578 is a direct replacement for vehicles requiring a flanged, integrated exhaust manifold catalytic converter, and it cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Repair Uses
- Replacing a cracked or leaking exhaust manifold converter
- Restoring exhaust sealing at the flanged inlet or outlet
- Addressing catalyst efficiency faults tied to the manifold converter
- Repairing exhaust noise caused by manifold or gasket leakage
- Servicing OE-style emissions hardware on a Nissan Altima
Installation Notes and Tips
Compatible With 2019-2021 Nissan Altima, N/A. Verify flange alignment, inlet and outlet diameter requirements, and mounting-hole count before installation. The inlet gasket is included, while inlet mounting hardware and clamps are not listed as included. Because this is a specific-fit manifold converter, compare the original unit, heat shield layout, and exhaust routing to confirm proper placement before assembly.
Quality Assurance
Dorman manufactures this catalytic converter with integrated exhaust manifold as a standard replacement part engineered to match OE specifications for the listed Nissan Altima applications. Part number 679-578 is built for direct-fit service and emissions-system replacement on the confirmed vehicle coverage.












