J Replace - OE Replacement Nissan SR20DET O2 Sensor - FAT

J Replace - O2 sensor are a great replacement for the worn out ones that often comes with the used SR20DET motors. Its always best to replace it to improve your gas mileage. For S13 Black top Sr20det utilize the FAT type 3 wire plug O2 sensors, also S14 SR20DET's also use the Fat type Sensor. To be safe, please look at your O2 sensor to determine which type you have and order accordingly.

We know the Nissan OEM FAT O2 sensor is discontinued. So this is a go to replacement for this specific part. They make for a great replacement for the factory part on many used SR20DET engines for S13 and S14 chassis. 

Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.