Oxygen Sensor Upstream Lambda O2 for Mitsubishi Lancer 234-5049
The Oxygen Sensor Upstream Lambda O2 for Mitsubishi Lancer 234-5049 is a heated, upstream oxygen sensor designed to deliver precise exhaust readings for your Mitsubishi. This OEM-referenced sensor (OE: 1588A221) continuously monitors the air–fuel ratio (lambda) and sends real-time data to the engine control unit (ECU). With a built-in heating element for rapid warm-up, it provides faster, more accurate lambda measurements, helping your engine optimize combustion, improve fuel efficiency, and reduce emissions from cold starts. Built to match the original electrical connections and mounting style, this sensor helps protect your catalytic converter and maintain smooth engine performance over time.
Key benefits include improved idle stability, quicker response after startup, and more consistent fuel trimming under varying driving conditions. By keeping the air–fuel ratio close to the ideal, it supports better torque delivery and smoother acceleration while lowering operating costs through better mileage. This sensor is a robust, reliable option when you need an OE-equivalent upstream O2 sensor for long-term reliability.
Benefits & Tips
- Fast response at engine start thanks to the heating element, reducing cold-start emissions and protecting the catalytic converter.
- Accurate lambda readings improve ECU fuel trimming, delivering steadier performance and better fuel economy.
- Ideal for owners of Mitsubishi Lancer (2011–2016), Outlander (2010–2015), Outlander Sport (2011–2015), and RVR (2011–2012) seeking a direct-fit replacement.
Product specifications
- Brand: IWOKPHD
- Sensor type: Upstream oxygen sensor (Lambda/O2)
- Sensor construction: Piezoelectric
- Heating: Yes (Heating Type) for rapid warm-up
- OE / Part numbers: 1588A221, 234-5049, 2345049, 234 5049, 24398, 18180, 250-25084, 25025084
- Applications: For MITSUBISHI LANCER 2011–2016; For MITSUBISHI OUTLANDER 2010–2015; For MITSUBISHI OUTLANDER SPORT 2011–2015; For MITSUBISHI RVR 2011–2012
- Origin: Mainland China
Package includes:
- 1 pcs
Warnings / Reminders
- Please verify the part number carefully to ensure fitment with your vehicle.
- If you are unsure which item fits your car, please send the Part Number or the original product photos to confirm before ordering.
- The only way to be 100% sure the part will fit is to check your original sensor; we can check fitment for you and reply within 24 hours.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
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