Oxygen (O2) sensor for Harley-Davidson Iron 883 XL883N (2014-2022), Forty-Eight XL1200X (2014-2018), Seventy-Two XL1200V (2014-2016), 1200 Custom XL1200C (2014-2019), and SuperLow XL883L / XL1200T (2014-2020). Monitors exhaust oxygen for air-fuel control. Verify sensor specification, connector and model/year before ordering.