A-Premium Downstream Heated O2 Oxygen Sensor for Honda & Acura — 4-Wire Threaded Direct-Fit (Boxed)

If an illuminated check engine light or poor fuel trim readings point to a failing downstream O2 sensor, this A-Premium replacement is built to match factory fit and function for a wide range of Honda and Acura vehicles. It’s a threaded, 4-wire heated sensor supplied in a box and cross-referenced to multiple OEM numbers for confident installation. The description below explains fitment, wiring, and what to expect during installation and operation.

Which vehicles does this downstream oxygen sensor fit?

This sensor covers many late-model Honda and Acura cars and SUVs in both 4-cylinder and V6 applications. Fitment is split by downstream location and vehicle engine to ensure you order the correct unit for your exhaust layout.

• Honda Civic: 2012–2015 L4 1.5L/1.8L and 2014–2015 L4 1.8L
• CR-V: 2010–2016 L4 2.4L; Accord: 2013–2017 L4 2.4L and 2014–2015 L4 2.0L
• HR-V: 2016–2022 L4 1.8L; Crosstour: 2012–2015 L4 2.4L
• Acura ILX, TLX, MDX, RDX, RLX and select Honda Pilot, Ridgeline and NSX applications (see fitment details)

How is this sensor specified and wired?

The A-Premium downstream O2 is a heated, 4-wire sensor with a threaded mounting and a female connector. It uses four conductors to supply the heater circuit and transmit the oxygen voltage signal to the vehicle’s ECU.

• Wire quantity: 4 — two heater wires and two signal/ground wires
• Sensor type: Heated oxygen sensor for faster warm-up and stable readings
• Mounting: Threaded for direct replacement into factory bung
• Connector: Female, designed to mate with OEM harness

What reference numbers and quality cues should I check?

Cross-referencing helps confirm compatibility with your vehicle; this sensor lists several OEM and aftermarket reference numbers. A boxed package and clear part numbers reduce the chance of ordering the wrong item.

• Cross-reference numbers: 250-24917, 234-4442, 25024917, 2344442
• Additional references: 18050, 24113, 36532REZA01 for verification
• Packaging: Single sensor per box for protection during shipping and storage

Are there fitment caveats or special notes I should know?

Some models and emission specifications require attention when selecting the downstream sensor. Check engine configuration and emissions designation (California vs Federal) to ensure a correct match.

• Special note: For 2013–2017 Honda Accord EX-L and Touring V6 3.5L, fits both California and Federal emissions versions
• Downstream location variants exist (front/left) for specific V6 or performance models like NSX
• Always verify engine code and model year before installation

Who is this for? If you’re servicing a Honda or Acura with a downstream O2 fault code, monitoring poor fuel trim, or replacing a sensor after exhaust work, the A-Premium downstream heated oxygen sensor is made for DIY mechanics and professional technicians who need a direct-fit, 4-wire replacement. It’s especially suited to owners of Civics, Accords, CR-Vs, HR-Vs, Crosstour, and compatible Acura models who require a reliable post-catalyst reading and an easy plug-and-play swap.