0258017025 – Bosch LSU 4.9 Wideband Oxygen (Lambda) Sensor, In Stock
Buy the Bosch 0258017025, an LSU 4.9 wideband oxygen (lambda) sensor with vehicle-specific connector, for precise air-fuel ratio measurement in the exhaust system. In stock and available for fast shipping. Get a quote today.
Key Technical Specifications
- Product Type: Wideband oxygen (lambda) sensor
- Part Number: 0258017025
- Sensor Type: LSU 4.9 (planar wideband design)
- Connector: Vehicle-specific plug connector, ready-to-fit
- Wire Count: 5-wire configuration
- Function: Measures oxygen content in exhaust gas for air-fuel ratio (AFR) control
- Engine Compatibility: All engine types, including diesel
- Common Aftermarket Cross-References: Compatible with wideband controllers such as AEM (30-2004, 30-0300, 30-0310, 30-4110) and PLX Devices
Design and Performance
Precise Wideband Air-Fuel Ratio Measurement
By measuring the amount of oxygen in the exhaust gas and sending the resulting signal to the ECU, this LSU 4.9 sensor enables the engine control unit to adjust the air-fuel mixture ratio precisely in the combustion chamber, supporting emission compliance and combustion efficiency.
Reliable Performance Across All Engine Types
Engineered through continuous innovation, this Bosch wideband lambda sensor supports powerful, efficient engine combustion across all engine types, including diesel applications, making it a versatile choice for both OEM replacement and aftermarket tuning setups.
Ready-to-Fit, Easy Installation
Supplied with a vehicle-specific connector, this sensor is ready-to-fit and easy to install, simplifying replacement without requiring connector modification or splicing in most OEM applications.
Popular Choice for Aftermarket Wideband Controllers
Widely used as a genuine sensor option or replacement for aftermarket wideband air-fuel ratio gauges and controllers (such as AEM X-Series and PLX Devices units), this sensor supports both stock ECU tuning and performance monitoring applications.
Genuine Bosch Engineering for Long-Term Reliability
As a factory Bosch oxygen sensor, the 0258017025 delivers the accuracy, durability, and consistent signal output expected of genuine OEM-grade automotive sensors, supporting reliable long-term operation in demanding exhaust environments.
Why Buy the 0258017025 From Us
- In stock and ready for immediate dispatch
- Fast shipping on every order
- Commercial advisory support to help you confirm compatibility with your vehicle or wideband controller
- Competitive pricing — get a quote in minutes
