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Dorman 679-504 Catalytic Converter - Front
| Brand | Dorman 679-504 |
|---|---|
| Position | Front |
| Outlet Outside Diameter | 4.5 |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Body Shape | Cylinder |
| Inlet Type | Flanged |
| Outlet Type | Flanged |
| Inlet Inside Diameter | 3.24 |
| Body Length | 4 |
| Body Width | 4 |
| Heat Shield Attached | Yes |
| Inlet Quantity | 1 |
| Body Material | Stainless steel |
| Outlet Inside Diameter | 2.05 |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Substrate Material | Ceramic |
| Inlet Mounting Hole Quantity | 3 |
| Inlet Mounting Hole Quantity | 5 |
| Inlet Gasket Included | Yes |
| Inlet Mounting Hardware Included | No |
| Outlet Mounting Hole Quantity | 3 |
| Outlet Gasket Included | Yes |
| Outlet Mounting Hardware Included | Yes |
| Overall Length | 10.5 |
| Air Tube Count | 0 |
| Sensor Port Count | 1 |
| Color | Natural |
| Exhaust Manifold Inlet Port Shape | Round |
| Installation Hardware Included | Yes |
| Fits | INFINITI and Nissan · 6 vehicles |
Standard replacement. Built as a direct-fit catalytic converter for reliable OE-style function.
Stainless steel body. Helps resist corrosion while the ceramic substrate supports efficient exhaust treatment.
Flanged inlet and outlet. Makes installation straightforward with a secure, leak-resistant connection.
Cross-references Carlson 16192, Gates 51732 and B08A03Y102 for the same application. See all 3.
OE-Style Catalytic Converter Replacement
The Dorman 679-504 catalytic converter is a specific-fit replacement engineered for original equipment fit and function on select 1999-2001 Nissan Maxima and 1999-2001 INFINITI I30 front applications. It is built with a stainless steel body, ceramic substrate, and flanged inlet and outlet connections for a direct replacement on the listed vehicles.
- Specific-fit catalytic converter for listed Nissan Maxima and INFINITI I30 applications
- Stainless steel body with ceramic substrate
- Flanged inlet and outlet design
- Heat shield attached for added thermal protection
- Includes inlet gasket, outlet gasket, and installation hardware
- One sensor port for the specified exhaust configuration
- Standard replacement grade
Fitment Details
Fits 1999-2001 Nissan Maxima, front. Fits 1999-2001 INFINITI I30, front. Dorman 679-504 is a direct-fit exhaust replacement for these front-position applications and is not CARB certified.
This part cross-references Carlson 16192 and Gates 51732 for the same application.
Product Overview
Dorman 679-504 is designed as a direct replacement catalytic converter for vehicles that need a front exhaust converter with OE-style mounting and connection points. The flanged inlet and outlet, round manifold inlet shape, and included gaskets help simplify matching the original exhaust layout on the specified Nissan Maxima and INFINITI I30 models. The stainless steel housing and ceramic substrate support standard replacement use in the exhaust stream.
Common Replacement Reasons
- Failed catalytic converter efficiency codes
- Exhaust restriction from a damaged or deteriorated converter
- Rattling or broken internal substrate
- Exhaust leaks at the inlet or outlet flange
- Corrosion or heat damage to the original converter assembly
Installation Notes
Verify the vehicle year, make, model, and front-position exhaust configuration before installation. Confirm the inlet and outlet flange pattern, sensor port location, and overall exhaust routing match the original part. Because this converter is not CARB certified, it should be used only where that emissions configuration is permitted. Follow factory torque specifications and inspect adjoining exhaust components, gaskets, and mounting surfaces during installation.
Quality Assurance
Dorman manufactures this converter as a standard replacement part with application-specific fitment for the listed vehicles. The design focuses on matching original equipment dimensions and connection style for a reliable exhaust repair on 1999-2001 Nissan Maxima and 1999-2001 INFINITI I30 front applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2001 | INFINITI | I30 | 3.0L | V6 | Front | CARB Compliant: No |
| 2001 | Nissan | Maxima | 3.0L | V6 | Front | CARB Compliant: No |
| 2000 | INFINITI | I30 | 3.0L | V6 | Front | CARB Compliant: No |
| 2000 | Nissan | Maxima | 3.0L | V6 | Front | CARB Compliant: No |
| 1999 | INFINITI | I30 | 3.0L | V6 | Front | CARB Compliant: No |
| 1999 | Nissan | Maxima | 3.0L | V6 | Front | CARB Compliant: No |
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