Genuine OEM INFINITI Catalytic Converter Parts — All Models In Stock
INFINITI of Akron stocks the complete catalog of genuine OEM INFINITI catalytic converters for every current and recent model — QX60, Q50, QX50, G37, Q70, QX80, and QX55 — sourced directly from Nissan North America. Every converter carries the original factory OEM part number, guaranteed fitment for your specific engine configuration, and full Nissan manufacturer warranty. We ship to all 50 states with free standard shipping on orders over $150.
Why Choose Genuine OEM INFINITI Catalytic Converters?
Modern INFINITI vehicles rely on accurate exhaust sensor data for real-time engine management calibration. Aftermarket converters may fit your vehicle but often lack the precise oxygen sensor bung placement, precious metal loading, and back-pressure characteristics your ECU expects — triggering check engine codes, failed emissions tests, and reduced performance. Genuine OEM eliminates this risk entirely.
The Q50 with Direct Adaptive Steering, the QX50 with variable compression engine management, and the QX60 AWD system all depend on accurate exhaust sensor data. On these vehicles, OEM is not optional — it is the only engineering-correct choice.
OEM INFINITI Catalytic Converters by Model
- INFINITI QX60 — 3.5L VQ35DE V6, front and rear converter assemblies available for 2013–2024. OEM part numbers vary by model year and emissions calibration. Not interchangeable between first generation (2013–2021) and second generation (2022–present).
- INFINITI Q50 — Available for all engine variants: 2.0T turbocharged four-cylinder, 3.0T twin-turbo VR30DDTT in 300HP and 400HP Red Sport outputs, and 3.7L naturally aspirated V6 (2014–2015). Each engine uses completely different converter assemblies — confirm your engine before ordering.
- INFINITI G37 — 3.7L VQ37VHR engine uses a four-converter system: two pre-catalytic converters near the exhaust manifolds and two main converters downstream. All four carry different OEM part numbers and are not interchangeable with each other.
- INFINITI QX50 — 2.0T VC-Turbo variable compression engine, 2019–2024. Unique converter assemblies calibrated specifically to the VC-Turbo's exhaust chemistry and variable compression combustion cycle.
- INFINITI QX80 — 5.6L V8 VK56VD engine, multiple converter positions available for all model years.
- INFINITI Q70 — 3.7L V6 and 5.6L V8 applications. Confirm engine before ordering.
- INFINITI QX55 — 2.0T VC-Turbo, current generation.
OEM Part Numbers — Exact Match Ordering
Every genuine OEM INFINITI catalytic converter carries a specific Nissan part number that confirms exact fitment for your vehicle's year, model, trim, and engine. Our highest-volume OEM part numbers include B08B31MD0B, B08B2-1MD0B, 208B3AC325, B08B24GB0B, and B08B2-1ET0B.
If you have the OEM part number from a dealer service estimate, enter it directly in the search bar above for an exact match. If you do not have the part number, use your vehicle's year, make, model, and engine size — or enter your full 17-digit VIN at checkout for the highest level of fitment confidence.
Shipping, Warranty, and Returns
All OEM INFINITI catalytic converters ship from our Akron, Ohio warehouse or the Nissan Parts Distribution Center with carrier tracking provided at shipment. Orders over $150 qualify for free standard shipping to all 50 states. Most in-stock orders ship same or next business day. Every genuine OEM part includes the full Nissan manufacturer warranty against defects in materials and workmanship. Parts arriving damaged or incorrectly supplied are replaced or refunded within 30 days.
Frequently Asked Questions
What is the difference between an OEM and aftermarket INFINITI catalytic converter?
An OEM INFINITI catalytic converter is manufactured by Nissan to the exact factory specifications — including precious metal loading, substrate cell density, oxygen sensor bung placement, and mounting configuration — of the original component. Aftermarket converters approximate those specifications but may not match the precise oxygen sensor placement or back-pressure characteristics your INFINITI's ECU expects, potentially causing persistent check engine lights or failed emissions tests. Genuine OEM eliminates this risk entirely.
Will an aftermarket catalytic converter void my INFINITI warranty?
Under the Magnuson-Moss Warranty Act, INFINITI cannot void your entire warranty for using aftermarket parts. However, if INFINITI can demonstrate that an aftermarket catalytic converter caused a specific failure — such as oxygen sensor damage or ECU calibration errors — that related repair may be excluded from warranty coverage. Genuine OEM parts carry no warranty risk.
How many catalytic converters does an INFINITI G37 have?
The INFINITI G37's 3.7L VQ37VHR engine uses four catalytic converters — two smaller pre-catalytic converters positioned close to the exhaust manifolds on each cylinder bank, and two larger main converters downstream. All four carry different OEM part numbers and are not interchangeable with each other. If a shop has diagnosed your G37 as needing a catalytic converter, confirm which of the four positions requires replacement before ordering.
Does INFINITI of Akron ship catalytic converters to all 50 states?
Yes. INFINITI of Akron ships genuine OEM INFINITI catalytic converters to all 50 states via standard carriers. Orders over $150 qualify for free standard shipping. Most orders ship same or next business day. Expedited 2-day and overnight shipping options are available at checkout.
How do I find the correct OEM catalytic converter part number for my INFINITI?
The most reliable method is to enter your 17-digit VIN in our parts search. The VIN encodes your exact engine, transmission, and emissions configuration and returns the correct part for your specific vehicle. If you have a part number from a dealer service estimate, search directly by part number for an exact match. Our parts team is also available by phone to assist with fitment questions.
What OEM catalytic converter fits a 2019 INFINITI QX60?
The 2019 INFINITI QX60 uses the 3.5L VQ35DE naturally aspirated V6 engine. The front and rear catalytic converter assemblies for the 2019 QX60 carry specific OEM part numbers for that model year and emissions calibration. Enter your VIN in our parts search for confirmed fitment, or contact our parts department with your model year and we will identify the correct OEM part number for your vehicle.
Are INFINITI catalytic converters covered by a warranty when purchased from INFINITI of Akron?
Yes. All genuine OEM INFINITI catalytic converters purchased from INFINITI of Akron are covered by the Nissan manufacturer warranty against defects in materials and workmanship. This is the same warranty coverage that applies when parts are purchased through any authorized INFINITI dealer service department.
