
Dorman 674-089 Catalytic Converter with Integrated Exhaust Manifold - Left
OE-Style Exhaust Manifold Converter
Dorman 674-089 is a catalytic converter with integrated exhaust manifold for specific Nissan and INFINITI applications. It is precision-engineered to match original equipment fit and function on the listed vehicles, with a stainless steel manifold body and ceramic substrate for direct replacement service.
Key Features
- Integrated exhaust manifold and catalytic converter in a one-piece design
- Flanged inlet and outlet connections for OE-style mounting
- Stainless steel converter body with ceramic substrate material
- Two sensor ports for factory exhaust sensor placement
- Includes inlet gasket and outlet mounting hardware
- Natural finish and regular grade construction
- Cross-reference: 140F2EZ30A
Detailed Description
This Dorman manifold converter is built for direct replacement on select Nissan TITAN XD, TITAN, Armada, NV2500, NV3500, and INFINITI QX80 models. The integrated manifold layout helps restore the original exhaust routing at the left-side position while maintaining the OE-style flange connections and sensor port locations. Part number 674-089 is a practical choice when replacing a worn, damaged, or restricted exhaust manifold converter assembly on 2016-2024 Nissan TITAN XD and other listed applications.
Compatible With 2016-2024 Nissan TITAN XD, left; 2016-2021 INFINITI QX80, left; 2017-2021 Nissan Armada, left; 2017-2021 Nissan NV2500, left; 2017-2021 Nissan NV3500, left; and 2017-2020 Nissan TITAN, left.
Common Replacement Reasons
- Cracked or leaking exhaust manifold assembly
- Restricted catalytic converter flow
- Failed exhaust sealing at the flange or gasket surface
- Check engine light related to exhaust sensor or catalyst efficiency faults
- Corrosion or heat damage to the original manifold converter
Installation Notes
Verify left-side fitment, flange alignment, sensor port count, and gasket surfaces before installation. Transfer or reconnect factory exhaust sensors as required by the vehicle configuration. Inspect adjoining exhaust components, studs, and mounting points for wear or damage before final assembly. This part number is 674-089.
Quality Assurance
Dorman manufactures this manifold converter as an OE-style replacement for specific vehicle years, makes, and models. The design is engineered to match original equipment dimensions and mounting points for reliable service on the listed applications.
Dorman 674-089 Catalytic Converter with Integrated Exhaust Manifold - Left
OE-Style Exhaust Manifold Converter
Dorman 674-089 is a catalytic converter with integrated exhaust manifold for specific Nissan and INFINITI applications. It is precision-engineered to match original equipment fit and function on the listed vehicles, with a stainless steel manifold body and ceramic substrate for direct replacement service.
Key Features
- Integrated exhaust manifold and catalytic converter in a one-piece design
- Flanged inlet and outlet connections for OE-style mounting
- Stainless steel converter body with ceramic substrate material
- Two sensor ports for factory exhaust sensor placement
- Includes inlet gasket and outlet mounting hardware
- Natural finish and regular grade construction
- Cross-reference: 140F2EZ30A
Detailed Description
This Dorman manifold converter is built for direct replacement on select Nissan TITAN XD, TITAN, Armada, NV2500, NV3500, and INFINITI QX80 models. The integrated manifold layout helps restore the original exhaust routing at the left-side position while maintaining the OE-style flange connections and sensor port locations. Part number 674-089 is a practical choice when replacing a worn, damaged, or restricted exhaust manifold converter assembly on 2016-2024 Nissan TITAN XD and other listed applications.
Compatible With 2016-2024 Nissan TITAN XD, left; 2016-2021 INFINITI QX80, left; 2017-2021 Nissan Armada, left; 2017-2021 Nissan NV2500, left; 2017-2021 Nissan NV3500, left; and 2017-2020 Nissan TITAN, left.
Common Replacement Reasons
- Cracked or leaking exhaust manifold assembly
- Restricted catalytic converter flow
- Failed exhaust sealing at the flange or gasket surface
- Check engine light related to exhaust sensor or catalyst efficiency faults
- Corrosion or heat damage to the original manifold converter
Installation Notes
Verify left-side fitment, flange alignment, sensor port count, and gasket surfaces before installation. Transfer or reconnect factory exhaust sensors as required by the vehicle configuration. Inspect adjoining exhaust components, studs, and mounting points for wear or damage before final assembly. This part number is 674-089.
Quality Assurance
Dorman manufactures this manifold converter as an OE-style replacement for specific vehicle years, makes, and models. The design is engineered to match original equipment dimensions and mounting points for reliable service on the listed applications.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
OE-Style Exhaust Manifold Converter
Dorman 674-089 is a catalytic converter with integrated exhaust manifold for specific Nissan and INFINITI applications. It is precision-engineered to match original equipment fit and function on the listed vehicles, with a stainless steel manifold body and ceramic substrate for direct replacement service.
Key Features
- Integrated exhaust manifold and catalytic converter in a one-piece design
- Flanged inlet and outlet connections for OE-style mounting
- Stainless steel converter body with ceramic substrate material
- Two sensor ports for factory exhaust sensor placement
- Includes inlet gasket and outlet mounting hardware
- Natural finish and regular grade construction
- Cross-reference: 140F2EZ30A
Detailed Description
This Dorman manifold converter is built for direct replacement on select Nissan TITAN XD, TITAN, Armada, NV2500, NV3500, and INFINITI QX80 models. The integrated manifold layout helps restore the original exhaust routing at the left-side position while maintaining the OE-style flange connections and sensor port locations. Part number 674-089 is a practical choice when replacing a worn, damaged, or restricted exhaust manifold converter assembly on 2016-2024 Nissan TITAN XD and other listed applications.
Compatible With 2016-2024 Nissan TITAN XD, left; 2016-2021 INFINITI QX80, left; 2017-2021 Nissan Armada, left; 2017-2021 Nissan NV2500, left; 2017-2021 Nissan NV3500, left; and 2017-2020 Nissan TITAN, left.
Common Replacement Reasons
- Cracked or leaking exhaust manifold assembly
- Restricted catalytic converter flow
- Failed exhaust sealing at the flange or gasket surface
- Check engine light related to exhaust sensor or catalyst efficiency faults
- Corrosion or heat damage to the original manifold converter
Installation Notes
Verify left-side fitment, flange alignment, sensor port count, and gasket surfaces before installation. Transfer or reconnect factory exhaust sensors as required by the vehicle configuration. Inspect adjoining exhaust components, studs, and mounting points for wear or damage before final assembly. This part number is 674-089.
Quality Assurance
Dorman manufactures this manifold converter as an OE-style replacement for specific vehicle years, makes, and models. The design is engineered to match original equipment dimensions and mounting points for reliable service on the listed applications.












