Oxygen Sensor Downstream for Lexus IS250/IS350 2006-2013
Main Description
The Oxygen Sensor Downstream for Lexus IS250/IS350 (2006-2013) from IWOKPHD is a precise, direct-fit replacement designed to monitor exhaust gas after the catalytic converter. This downstream O2 sensor helps your vehicle maintain the optimal air-fuel balance, supporting smoother engine performance, stronger emissions compliance, and improved fuel efficiency. Built to match the original specifications, it fits securely in the downstream position on Lexus IS250 models from 2006–2013 and IS350 models from 2011–2013, delivering reliable, long-lasting monitoring where it matters most.
Manufactured to the exacting standards expected by European buyers, this sensor carries CE certification and comes with a two-year warranty. Rest easy knowing you’re purchasing a quality component that aligns with modern automotive expectations. The part numbers 234-4518 (OEM: 234-4518) and 89465-53230 ensure you’re selecting a proven replacement that fits the intended Lexus applications.
Originating from Mainland China, this oxygen sensor is a practical and affordable upgrade or replacement part that keeps your engine management system in sync with your vehicle’s exhaust stream. Remember to verify the part number against your vehicle’s specification before purchasing to ensure proper fitment.
Since 2002, intercyprus.com has stood for reliability and quality, offering trusted parts to vehicle owners across the EU.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Benefits & Tips
- Keep your exhaust readings accurate: a fresh downstream O2 sensor helps your ECU fine-tune fuel delivery, supporting smoother idle and better throttle response.
- Protect your catalytic converter: by providing correct post-cat oxygen measurements, this sensor helps minimize excess emissions and reduces strain on the exhaust system.
- Peace of mind during maintenance: use this replacement part to maintain reliable engine performance while you address check engine light codes related to oxygen sensor readings.
Product Specifications
- Brand: IWOKPHD
- Part Number: 234-4518 (also listed as 234 4518, 2344518)
- OEM No.: 234-4518
- Alternate codes: 89465-53230
- Application: Lexus IS250 (2006-2013); Lexus IS350 (2011-2013)
- Sensor Type: Oxygen Sensor (downstream position)
- Origin: Mainland China
- Warranty: 2 years
- Package Includes: 1 x Oxygen Sensor Downstream
Package includes
- 1 x Oxygen Sensor Downstream for Lexus IS250/IS350 (2006-2013)
Warnings / Reminders
- Please check the part number before purchasing replacements to ensure correct fitment.
- If you’re unsure about compatibility, provide your VIN, year, and model to confirm fitment with our team.
- If parts arrive damaged or are faulty, contact our Customer Service with a problem description and photos to resolve the issue quickly.