🔧 234‑4621 Downstream Oxygen (O2) Sensor – Heated | Direct Replacement
Fits Honda & Acura Models | Improves Fuel Efficiency | OE‑Grade Quality
This brand‑new downstream heated oxygen sensor replaces worn or failing units to restore proper air‑fuel ratio readings, improve fuel economy, and reduce emissions. Built to OE‑level durability with high‑grade materials and strict quality control.
⭐ Key Features
🛠️ Direct Replacement
- Installs in the downstream (after catalytic converter) position
- Plug‑and‑play fitment with OEM‑style connector
- 100% factory tested for performance and reliability
⚡ Heated Sensor Design
- Faster warm‑up time
- More accurate readings
- Improved engine efficiency and smoother operation
💪 Built for Long‑Term Durability
- High‑quality core components
- Double protective cover
- Designed to meet or exceed OE performance
🔧 OEM Equivalent Part Numbers
- 234‑4621
- 36532P8CL21, 36532P8CL01, 36532P8CL02
- 36532P8DJ01, 36542PR7A51
🚗 Vehicle Compatibility
Honda
- Accord 3.0L (California Only): 1998–1999
- Accord 3.0L: 2000–2002
- Accord 2.3L: 1998–2002
- Civic 1.7L EX (D17A2 engine only): 2001–2003
- Civic 1.7L SI (D17A2 engine only): 2002–2003
Acura
- NSX 3.0L / 3.2L: 2000–2005 (Downstream Rear B1S2)
- TL 3.2L (California Only): 1999
- TL 3.2L: 2000–2003
- EL 1.7L: 2001–2003
- CL 3.2L: 2001–2003
📦 Package Includes
- 1× Downstream Heated Oxygen Sensor (234‑4621)
🧰 Why Replace Your O2 Sensor?
A failing downstream O2 sensor can cause:
- Poor fuel economy
- Rough idle or hesitation
- Check Engine Light
- Failed emissions testing
Replacing it restores proper air‑fuel ratio monitoring and engine efficiency.
⚠️ Important Fitment Note
Always match the part number and compare the connector and sensor body with your original part. Review all photos and verify compatibility with your vehicle.
⚠️ Disclaimer
We are not an authorized dealer of this product. Any manufacturer warranty may not be honored.
We source factory closeouts, overstock, salvage, lost freight, and store returns.
All items are sold “AS IS” — no warranty or liability is expressed or implied.