NGK 15-20 Subaru WRX / 14-18 Forester Direct Fit (B1S2) Oxygen Sensor - 24478

NTK is the world's largest supplier and manufacturer of OEM oxygen sensors. Oxygen sensors play a critical role as part of the vehicle's on-board diagnostic system in maintaining optimal engine performance, maximizing fuel efficiency and reducing harmful emissions. Providing constant closed loop feedback to the ECU, oxygen sensors help to control the air-fuel ratio while alerting OBDII systems of possible problems with fuel delivery or catalytic converter efficiency. A ceramics company at our core, NTK uses state-of-the art technology enabling control of the ceramic element used in our oxygen sensors from raw material to finished product. Trust The Sensor Specialist for full-line market support and OE application technology.

• ADVANCED CERAMIC SENSOR ELEMENT: 3-stage contaminant-resistant plasma jet and deposit trap overcoat protects against element poisoning

This Part Fits:

Year	Make	Model	Submodel
2014-2018	Subaru	Forester	2.0XT Premium
2014-2018	Subaru	Forester	2.0XT Touring
2015-2021	Subaru	WRX	Base
2015-2021	Subaru	WRX	Limited
2015-2021	Subaru	WRX	Premium