How many catalytic converters are in an Acura MDX?
The Acura MDX generally uses two catalytic converters—one on each bank of its V6 engine. This dual-cat setup is standard on most gas-powered MDX models, though hybrids or rare regional configurations can vary slightly.
Standard configuration: two catalytic converters
Most MDX models with the traditional 3.5–liter V6 and dual exhaust use a pair of catalytic converters. Here are the key points you should know:
- Architecture: One catalytic converter per cylinder bank—driver-side and passenger-side.
- Location: Each converter sits along its bank’s exhaust path, usually mounted relatively close to the engine and the midsection under the vehicle.
- Oxygen sensors: The system typically includes two upstream and two downstream oxygen sensors (one set per bank) to monitor catalytic performance.
In short, the standard MDX dual-exhaust setup yields two catalytic converters, aligned with the two banks of the V6 engine.
Variations and how to confirm for your model
While two catalytic converters are the norm, there can be exceptions depending on model year, trim, or hybrid configuration. If you want to confirm for your exact vehicle, follow these steps:
- Inspect the exhaust system: Trace from the engine toward the rear and look for two distinct catalytic converter housings on each exhaust leg.
- Check official documentation: The owner’s manual or dealer service information for your year will specify the number and placement.
- Ask a professional: A mechanic or parts specialist can verify by inspecting your VIN or the vehicle in person.
For most gasoline MDX models with the current dual-exhaust layout, expect two catalytic converters. If you drive the MDX Sport Hybrid or a region-specific variant, verify with documentation or a technician to be certain.
How to identify on your vehicle
Look beneath the car on both sides of the midsection to see two large catalytic converter housings along the exhaust pipes. The presence of two distinct converter units is the telltale sign of the typical MDX setup.
Summary
Across its gasoline MDX lineup, Acura generally deploys two catalytic converters—one per bank of the V6 engine—forming a standard dual-cat exhaust arrangement. Always check VIN-specific documentation or consult a technician if you need to confirm for a particular year or hybrid variant.
