Bosch LSU 4.9 Wideband Lambda Sensor (M18x1.5) – Discounted Test-Used Batch
Genuine Bosch LSU 4.9 wideband / UEGO oxygen sensor is the industry standard for tuning and measurement applications. It is suitable for gasoline, diesel and ethanol blends (E85), as well as methanol and gaseous fuels (LPG/CNG), depending on controller support.
NOTE: This product is a limited batch of discounted “test-used” sensors. The sensors have been used briefly for diagnostic testing or a short dyno run, but are effectively near-new. An excellent and cost-effective option when you want to replace a worn or aging sensor in your wideband system at a sensible price.
This product is supplied with a 12-month warranty.
Compatibility
- PLX Devices Wideband Gen4 and newer (e.g. PLX Gen4 widebands)
- Related part numbers: Bosch 0258017025, 0258017271, 0281004028, 0258017036
- Also cross-references: Walker 250-25036, 250-25075
Connector note
Please verify the connector / wiring harness type before ordering. Older wideband systems used a different connector type (e.g. PLX Gen2). If you are unsure, contact us and we’ll help you confirm the correct sensor.


