Keep your engine's fuel trims dialed in with the DENSO Oxygen Sensor 234-8027. This 4-wire, heated, narrow-band sensor is a direct-fit, application-specific replacement for the 2016-2021 Honda Civic (L4-1.5L) and 2017-2022 Honda CR-V (L4-1.5L). It mounts in the downstream position, where it reads the oxygen content of the exhaust after the catalytic converter so the ECU can monitor converter efficiency.
If a failed downstream oxygen sensor is the cause of your check-engine light or a converter-efficiency code, this DENSO unit replaces it. Made in the United States.
Interchange: 365325AAA01 · 365325AAA51 · 24485 · 250-241208 · 250241208 · 350-341077 · 350341077
Manufacturer part number 234-8027 (also 2348027)
This part cross-references / interchanges with the following part numbers:
What vehicles does the DENSO 234-8027 fit?
It's a direct-fit replacement for the 2016-2021 Honda Civic (L4-1.5L) and 2017-2022 Honda CR-V (L4-1.5L). Check the Buyer's Guide tab to confirm your vehicle.
Is this an upstream or downstream sensor?
It's cataloged for the downstream position, reading exhaust oxygen after the catalytic converter so the ECU can monitor converter efficiency.
What type of oxygen sensor is this?
It's a 4-wire, heated, narrow-band oxygen sensor with a female connector and threaded mounting.
What does the aluminum oxide trap layer do?
DENSO's aluminum oxide trap layer is designed to help protect the ceramic element from silicone and lead contamination during operation.
What are the sensor's basic specifications?
It has four wires, a 0.701 in thread diameter, a 16.38 in wiring harness, and a threaded mount. Country of origin is the United States.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
