Yes, the Nissan Altima 2.5L Exhaust Manifold Catalytic Converter fits a 2007-2012 Nissan Altima 2.5L engine as a direct bolt-on replacement.
The Altima Exhaust Manifold is designed to replace the factory-installed manifold and matches the OE Part Number 14002-JA91E. This specific component is an exhaust manifold catalytic converter, which is a metal pipe that directs exhaust gases away from the engine while filtering out pollutants. Based on the technical specifications, the unit features a leak-resistant design and matches the factory flange style and diameter to ensure a proper seal against the cylinder head. Because exhaust manifold catalytic converters are bolted directly to the engine block, ensuring the manifold geometry aligns with the specific engine block casting is vital to avoid port mismatches where the tubes fail to line up with the cylinder ports. We selected this model for our comparison because it matches several interchange part numbers, including 327-50268 and 140E2ZX31E. However, this unit is not CARB (California Air Research Board) approved and cannot be shipped to or installed on a California emissions-equipped vehicle.
What to Check Before Buying the Altima Exhaust Manifold
Before ordering, you must verify your vehicle’s specific requirements to ensure the part functions correctly and remains legal for your region.
You can find out exactly what hardware comes with the 674-933 to ensure you have everything for a proper installation.
- Confirm your vehicle is not a California emissions model, as this part lacks CARB approval.
- Verify that your engine block casting matches the 14002-JA91E manifold geometry to prevent port mismatch.
- Check that there is sufficient clearance for the heat shields and surrounding components in your specific engine bay.
- Confirm that your local regulations do not require a specific substrate material that differs from this unit’s internal construction.
Comparing the Altima Exhaust Manifold to Other Options
The Altima Exhaust Manifold serves as a direct replacement for the factory part, making it suitable for owners seeking an exact-fit kit. Buyers looking for high-flow ceramic substrates may prefer alternative options if they prioritize maximum exhaust flow over standard emissions compliance. Additionally, if you live in a region requiring specific legal certifications like CARB, you would need to look for a different converter that meets those specific regional standards. This specific model is intended for those needing a standard replacement that mirrors the original equipment’s fit and finish.
If you own a 2007-2012 Nissan Altima 2.5L and do not live in California, you should choose this product for a direct bolt-on replacement that maintains the factory fit.
If you are still deciding, view our comparison of the best exhaust manifold catalytic converter for nissan altima to see other top-rated options.
Nissan Altima 2.5L Exhaust Manifold Catalytic Converter
Owners of different models can also see which exhaust manifold catalytic converter for honda civic provides the most reliable performance.
$152.99 price checked August 2026
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