Yes, the AutoShack Exhaust Manifold Catalytic Converter Passenger Side fits 2012-2015 Nissan Titan models. This specific unit is designed as a direct replacement for the 5.6L V8 engine configuration used in the Titan from 2004 through 2015.
The Exhaust Manifold Converter is a metal housing containing a ceramic honeycomb that filters exhaust gases as they leave the engine block. We identified this product as a compatible option among the 5.6L V8 exhaust components we evaluated because it matches the 674-843 interchange and OE part number 16479 674-843 674-843. Because exhaust manifold converters are bolted directly to the cylinder head, ensuring the flange bolt pattern and pipe diameter match the 2012-2015 production year is critical to prevent “near-fits” that cannot be secured. This unit weighs 15.4 pounds and includes the necessary hardware for assembly, meaning you do not need to source separate bolts or gaskets. However, this product is not legal for sale or use in California, Colorado, New York, or Maine; you must verify your local emissions standards before purchasing.
What to Check Before Buying the Exhaust Manifold Converter
Before ordering this catalytic converter, you should verify these specific technical details to ensure a successful installation.
- Confirm your state’s emissions laws, as this unit is restricted in several states including New York and California.
- Verify that your specific engine bay has the necessary clearance for the 15.4-pound unit to avoid interference with heat shields or wiring.
- Check that your vehicle’s oxygen sensor ports align with the converter’s layout to avoid needing a sensor relocation.
- Confirm your vehicle’s 5.6L V8 configuration matches the 674-843 interchange standard.
- Ensure you do not require a custom-cut pipe transition, as this is a direct replacement and not a universal-fit part.
Comparing the Exhaust Manifold Converter to Other Options
The Exhaust Manifold Converter serves as a mid-range replacement for owners needing to restore emissions compliance on high-mileage trucks. If you require a high-flow ceramic substrate to maximize horsepower, you may want to look at aftermarket performance manifolds rather than this standard replacement. For buyers who need a component that meets strict regional standards, you must prioritize checking the legal status of the substrate material in your specific region before selecting a model. This product is ideal for those seeking a direct bolt-on fit for the 2004-2015 Titan platform without the need for welding.
If you have specific technical questions, view our AutoShack Exhaust Manifold Converter FAQ.
If you own a 2012-2015 Nissan Titan with a 5.6L V8 engine and need a direct-fit replacement that includes mounting hardware, you should choose this product.
AutoShack Exhaust Manifold Catalytic Converter Passenger Side
For owners of a different vehicle, see our comparison of the best exhaust manifold catalytic converter for toyota camry.
$238.99 price checked August 2026
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