FuelTech Bosch LSU 4.2 Wideband O2 Sensor - 3022000965
Accurate Wideband AFR Monitoring for Performance Engines
The FuelTech Bosch LSU 4.2 Wideband O2 Sensor is a critical component for precise air-fuel ratio monitoring, delivering real-time lambda data essential for tuning and engine protection. Designed for high-performance applications, this sensor provides fast, accurate feedback to help optimize fuel delivery and maximize engine efficiency.
Whether you're tuning for power, efficiency, or reliability, the LSU 4.2 sensor ensures consistent AFR data across a wide range of operating conditions.
Wide Fuel Compatibility for Versatile Applications
The Bosch LSU 4.2 sensor is engineered to operate across multiple fuel types, making it a versatile choice for a wide range of builds. From street performance to motorsports, it supports common fuel blends while maintaining accurate readings.
- Compatible with unleaded gasoline
- Supports ethanol gasoline blends
- Suitable for methanol applications
- Works with diesel engines
- Not recommended for prolonged use with leaded fuels or 2-stroke engines due to reduced lifespan
Optimized for Use with Wideband Controllers
To function correctly, this sensor must be paired with a wideband O2 controller or signal conditioner. When used with a FuelTech wideband controller, calibration is handled automatically for a simplified setup and reliable operation.
- Requires wideband O2 controller for operation
- Automatic calibration when used with FuelTech controllers
- Ideal for integration with standalone ECU systems
Standard Thread Size for Easy Installation
The LSU 4.2 features a standard M18 x 1.5 thread size, ensuring compatibility with most aftermarket exhaust bungs and wideband sensor installations.
- M18 x 1.5 thread size for universal fitment
- Simple installation in standard O2 sensor bungs
- Common sizing for performance exhaust systems
Built for Integration with FuelTech Systems
This sensor is commonly used with FuelTech wideband solutions such as the WB-O2 Nano and NanoPRO, allowing for advanced AFR monitoring, CAN communication, and expanded tuning capabilities.
- Compatible with FuelTech WB-O2 Nano controller
- Works with NanoPRO multi-function controller
- Supports advanced ECU data logging and tuning strategies
Important Usage Notes
- Handle sensor carefully to avoid damage
- Do not disconnect the sensor while in operation
- Sensor lifespan may be reduced with leaded fuels, diesel, or 2-stroke engines
Features
- Genuine Bosch LSU 4.2 wideband O2 sensor
- Provides real-time lambda and AFR data
- Compatible with multiple fuel types including gasoline, ethanol, methanol, and diesel
- Requires wideband O2 controller for operation
- Automatic calibration with FuelTech controllers
- Standard M18 x 1.5 thread size
- Ideal for performance tuning and data logging
Quick Specs
- Brand: FuelTech / Bosch
- Product Type: Wideband O2 Sensor
- Sensor Type: Bosch LSU 4.2
- Thread Size: M18 x 1.5
- Fuel Compatibility: Gasoline, Ethanol Blends, Methanol, Diesel
- Controller Requirement: Wideband O2 Controller Required
- Bosch Part Number: 0 258 007 057
- VW Cross Reference: 021-906-262-B
- Application: Air-fuel ratio monitoring and tuning
- Part Number: 3022000965
FAQs
Do I need a controller to use this sensor?
Yes. The LSU 4.2 requires a wideband O2 controller or conditioner to function and provide accurate AFR data.
Can this sensor be used with alcohol fuels?
Yes. It is compatible with ethanol blends and methanol, but sensor lifespan may be reduced depending on fuel type and operating conditions.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for FuelTech sensors, wideband systems, and high-performance tuning components. We help builders and racers get accurate data and dependable performance.
From daily drivers to full race cars, our team provides expert support, fast shipping, and real-world experience to help you get the job done right.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

