A-Premium Downstream O2 Oxygen Sensor for Honda & Acura — 4-Wire Heated, Female Connector

The A-Premium Downstream O2 Oxygen Sensor is a direct-fit, heated 4-wire replacement designed to restore accurate exhaust oxygen readings for many Honda and Acura models.

When your vehicle's downstream oxygen sensor fails or triggers a check-engine light, the engine computer can lose accurate data needed for emissions monitoring and fuel-trim diagnostics. This A-Premium sensor is built as a threaded, female-connector, boxed unit that matches OE-style specifications and targeted part numbers so it installs like the original equipment component. It’s made as a single-package replacement intended to suit a wide range of Honda and Acura engines across many model years, including both four-cylinder and V6 applications where specified.

Which vehicles will this A-Premium downstream O2 sensor fit?

This sensor covers a broad list of Honda and Acura fitments. It includes multiple downstream positions (rear, downstream front, left) depending on the model and engine. Verify the location required for your car before ordering.

• Honda Civic: 2012–2015 L4 1.5L/1.8L and 2014–2015 L4 1.8L
• Honda CR-V: 2010–2016 L4 2.4L; Accord: 2013–2017 L4 2.4L, 2014–2015 L4 2.0L
• Honda HR-V: 2016–2022 L4 1.8L; Crosstour: 2012–2015 L4 2.4L
• Acura ILX, TLX, MDX, RDX, RLX and select NSX and Pilot/Ridgeline V6 fitments (see product fitment list)

What are the technical specs and connector details?

This A-Premium unit is a heated oxygen sensor with a threaded mounting style and a female electrical connector, built to match common OE wiring conventions. It ships in a protective box and is provided as one sensor per package.

• Wire quantity: 4 (heated design)
• Sensor type: Heated O2 sensor for downstream use
• Mounting: Threaded to fit factory exhaust bung
• Connector gender: Female; package quantity: 1 sensor

How do I confirm compatibility and part numbers?

Before purchase, compare the part numbers and the physical connector on your vehicle to ensure match. This sensor references several common OEM and aftermarket numbers used by mechanics and parts suppliers.

• Reference numbers: 250-24917, 234-4442, 25024917, 2344442
• Other cross references: 18050, 24113, 36532REZA01
• Check your vehicle’s service manual or current sensor label to verify match

Are there any special notes for specific models?

Some trim levels and emission packages require specific downstream sensor locations; be sure to select the correct downstream position if your model uses a front, left, or rear downstream sensor. This product listing includes fitment notes for California and federal emissions where applicable.

• Special note: For 2013–2017 Honda Accord EX-L/Touring V6 3.5L — fits both California and Federal emissions
• Some Honda/Acura V6 models require a downstream front or left sensor—confirm position
• Installation may require an O2 sensor socket for removal/installation

Who this is for: This A-Premium downstream oxygen sensor is intended for DIY mechanics, service technicians, and car owners who need a direct-fit, heated 4-wire replacement for affected Honda and Acura models. It suits anyone replacing a failing downstream sensor to clear emissions-related diagnostic trouble codes, restore proper exhaust monitoring, or return a vehicle to compliance after a sensor fault. Confirm the exact fitment and connector style against your vehicle’s original part prior to installation to ensure compatibility.