[Part Number Replacement] The Oxygen Sensor replaces# Upstream & Downstream Oxygen Sensor: 250-54102 250-241104. [ ]The O2 Sensor Compatible with for V6 3.5L M35h 2012-2013, Q70 Hybrid 2014-2014 (To 11/2013). [ ]The O2 Sensor Compatible with for 1.6L L4 2012 1.6 S/1.6 SL/1.6 SV/Advance)Sense; 2014-2017 1.6 S/1.6 SL/1.6 SV/1.6 S Plus/Advance/Exclusive/Sense; 2018 1.6 S/1.6 SV/1.6 S Plus/SenseAdvance/Drive/Exclusive; 2019 S/SV/S Plus/Sense/Advance/Drive/Exclusive/GO Advance/GO Exclusive/GO Sense; 2014-2017 Note S/SL/SV/S Plus; 2015-2017 Note [Main Function] The Oxygen Sensor helps the engine control system adjust the ratio by monitoring and providing feedback on the oxygen content in the exhaust. This helps improve combustion efficiency and economy, ensuring the normal operation and performance output of the engine. Color: Black Material: ABS Package Contents: 2 x O2 Oxygen Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.