Genuine Bosch 17025 LSU 4.9 Wideband Oxygen Sensor – Delivers high-precision air/fuel ratio readings critical for engine tuning, emissions control, and performance calibration in a wide range of applications.
Trusted Sensor for Wideband Controllers & Tuning Devices – Compatible with popular wideband systems including AEM, Innovate, Holley Terminator X and Sniper EFI, and more, making it a go-to choice for tuners and shops.
Advanced LSU 4.9 Sensor Design for Faster Response & Longevity – Built with Bosch’s latest wideband technology, the LSU 4.9 offers enhanced accuracy, stability, and long service life, even under high-heat, high-load conditions.
38" Length
Ideal for EFI, Dyno Calibration & Performance Builds – Whether you're dialing in AFR on the dyno or logging data on the street, this sensor ensures precise AFR control for optimal combustion and power.