Oxygen Sensor Air-Fuel Ratio Lambda for Mitsubishi Lancer Diamante Eclipse
Upgrade your Mitsubishi’s fuel management with this Oxygen Sensor Lambda designed for the Lancer, Diamante, and Eclipse. This heated, piezoelectric sensor provides precise oxygen readings to the engine control unit, helping your car maintain an optimal air–fuel ratio. By delivering accurate feedback from the exhaust stream, it supports smoother idling, better throttle response, and improved fuel efficiency while reducing emissions. The sensor is built as a direct replacement for common configurations, covering a range of engines from 2.0L L4 to 3.5L V6 and years spanning the early 1990s to mid-2000s. Depending on your model, it functions as either upstream (pre-cat) or downstream (post-cat) sensing to keep your exhaust system running clean and efficiently tuned. OEM reference 234-4642 is among the many compatible part numbers listed for this sensor, ensuring a solid match for your vehicle.
Warranty and certifications
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. This item carries a 1-year warranty (Replacement Warranty) as listed.
Benefits & Tips
- Restore precise air–fuel control to improve idle stability, throttle response, and overall driving efficiency.
- Use as a direct replacement to minimize diagnostic time and ensure compatibility with a broad range of Mitsubishi models listed in the descriptions.
- Double-check fitment before purchase to ensure correct upstream or downstream placement for your engine configuration; when in doubt, contact us prior to ordering to avoid mismatches.
Product specifications
- Brand: IWOKPHD
- Sensor Type: Piezoelectric
- Heating: Heating Type
- Measuring Range: Upstream Front Probe Air Fuel Ratio Lambda
- OEM No.: 234-4642
- Origin: Mainland China
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Application (selected):
- For Mitsubishi Lancer 2.0L L4 SOHC 2002-2006 Downstream
- For Mitsubishi Lancer 2.0L L4 Turbo 2003 Downstream
- For Mitsubishi Diamante 3.0L V6 DOHC 1992-1993 Upstream
- For Mitsubishi Diamante 3.0L V6 SOHC 1992-1993 Upstream
- For Mitsubishi Diamante 3.5L V6 1997-1998 Downstream
- For Mitsubishi Diamante 3.5L V6 1999-2000 Downstream (Excl. Calif.)
- For Mitsubishi Eclipse 2.4L L4 2000 Downstream (Excl. Calif.)
- For Mitsubishi Eclipse 3.0L V6 2000 Upstream (Excl. Calif.)
- Part Numbers: 234-4642, 2131222, 2133071, 2134353, 13805, 15360, 15587, 15592, 24629, 2344642, MD170618, MD177968, MD180618, MD319787, MD357266, MN158773, MR507854, MR578532
Package includes
- 1 x Oxygen Sensor
Warnings / Reminders
- Please check the product picture and fitment before you order.
- If you are not sure about compatibility, feel free to contact us before you order.
- Otherwise, refunds may not be issued for incorrect orders.
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