ACAUTO Oxygen O2 Sensor 2-Pack Upstream & Downstream — Direct-Fit, Fast-Heat Replacement for Honda/Acura

ACAUTO O2 Sensor 2-pack (234-4092 / 234-4123) is a direct-fit upstream and downstream replacement designed to restore accurate oxygen readings and emissions control on compatible Honda and Acura models.

If your vehicle is showing a check engine light related to the oxygen sensor, rough idle, or reduced fuel efficiency, this ACAUTO two-sensor set provides a direct, OE-style replacement for many late‑1990s and early‑2000s Honda and Acura engines. Built with durable materials and a rapid-heat element, these sensors are intended to reach operating temperature quickly and interface cleanly with factory wiring and connectors.

Which vehicles and engines will these sensors fit?

These two sensors cover multiple Honda and Acura applications across specific years and engine types. Check the engine code and OE number on your original sensor to confirm fitment before ordering.

• Compatible with Honda Civic L4 1.7 (2001–2005, D17A7).
• Fits Acura CL V6 3.2 (2001–2003), Acura TL V6 3.2 (2000–2003) and specific California-region models.
• Also fits NSX V6 3.2 (1997–2005 depending on model), Accord V6 3.0 (1998–2002), Odyssey L4/2.2/2.3 (1996–1998), Prelude L4 2.2 (1996–2001), and Isuzu Oasis L4.
• Verify against OE numbers 234-4092 and 234-4123 when matching your vehicle.

What OE numbers and part references does this ACAUTO set replace?

The ACAUTO pair is manufactured to replace a range of original equipment references so you can cross-check compatibility quickly. Use the OE references printed on your old sensor to be certain you’re ordering the correct item.

• Primary OE numbers: 234-4092 and 234-4123.
• Cross-references include 13363, ES20058, 24546, SG614, 24243, SG581, ES20063 and similar listings.
• Sold as an upstream and downstream pair for applications that require both positions to be replaced.

How are these sensors built and what performance features do they offer?

ACAUTO sensors are engineered from quality materials and include design features to improve longevity and response times. They are not aftermarket tuning devices but are made to provide reliable oxygen level feedback to your vehicle’s engine control unit.

• Constructed with platinum sensing elements and ceramic substrates for accurate readings.
• Stainless-steel 310S housings provide corrosion resistance in exhaust environments.
• Integrated fast-acting heater (for planar and wire thimble types) helps the sensor reach operating temperature within seconds.
• Threads and connectors arrive pre-coated with anti-seize to simplify installation and prevent galling.

How easy is installation and what should I expect during replacement?

These ACAUTO sensors are designed as direct-fit replacements that match original harness connections and thread sizes, minimizing modification. Basic mechanical tools and standard safety precautions are usually sufficient for swap-out; consider a vehicle lift or jack stands for easier underbody access.

• Direct-fit OE-style connectors for plug-and-play wiring installation.
• Anti-seize pre-applied on threads to simplify future removal.
• Sold as a two-pack to replace both upstream and downstream positions when required.
• Recommended to verify error codes and clear the ECU after replacement to confirm resolution.

Who is this for: This ACAUTO oxygen sensor 2-pack is suited for owners and technicians working on compatible late‑1990s to early‑2000s Honda and Acura models who need a dependable OE-style replacement. Choose this set if you require a direct-fit sensor with durable materials, fast heat-up capability, and pre-applied anti-seize for straightforward installation—especially when replacing both upstream and downstream sensors together.