item(s) totaling $
See if this part fits a specific vehicle.
|This product doesnt fit any of your saved vehicles||Check Fit for another vehicle|
|Connector Type:||Direct fit|
|Length (Sealing Surface To End Of Connector):||13.82 in|
|Thread Size:||P=44 mm|
Do you have questions about this product?
Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.
Q:What is the difference between upstream and downstream as far as the basic fit to the Catalytic Converter?
A:With reference to your inquiry on the Denso Oxygen Sensor Direct Fit - Part No. 234-1051, the upstream is before the catalytic converter, the downstream is after. The upstream sensor tells, how the engine runs whereas the downstream sensor only tells if the catalytic converter is going bad. For compatibility with your vehicle, please provide the year, make, model and engine size of your vehicle and for any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.