This is the OEM Skinny Oxygen Sensor for your S13 or S14 equipped with the SR20DET.

For S13 models, there's 2 type of O2 sensor. FAT (Blacktop) and SKINNY (Redtop) type, both of which are 3 wire O2 sensor. To be safe, please look at your O2 sensor to determine which type you have and order accordingly.

Highlights:

• Recommended replacement part for those doing JDM Engine Swaps.
• For SR20DET SKINNY TYPE SENSOR.
• Improves gas milage and running condition when its changed out.
• Genuine Nissan Parts direct from Nissan Japan!