Upstream Oxygen Sensor - Compatible with 2003 - 2006 Nissan Sentra 2004 2005

Upstream Oxygen Sensor - Compatible with 2003 - 2006 Nissan Sentra

Position: Upstream

Note: OE Base Sensor; B1S1

Sensor Type: Heated

Universal Or Specific Fit: Specific

Wire Quantity: 5

Features:
- Determines the oxygen content of the exhaust gas, monitoring the air fuel ratio for combustion efficiency.
- Monitors exhaust gases and reduces pollutants for a cleaner environment.
- Coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
- Measures oxygen levels to fine-tune air-fuel mixture, improving fuel economy and saving costs.
- Coated in with electrodes made of a gas-permeable platinum layer.

Compatible With or Fits:
Note: Calif-ESV
- 2003 Nissan Sentra 1.8L 4 Cyl QG18DE FI Naturally Aspirated GAS

Note: Non Calif-ESV
- 2004 Nissan Sentra 2.5L 4 Cyl QR25DE FI Naturally Aspirated GAS Automatic

Note: Non Calif-ESV, From 4/2003
- 2003 Nissan Sentra 1.8L 4 Cyl QG18DE FI Naturally Aspirated GAS

Note:
- 2005 - 2006 Nissan Sentra 2.5L 4 Cyl QR25DE FI Naturally Aspirated GAS
- 2004 - 2006 Nissan Sentra 1.8L 4 Cyl QG18DE FI Naturally Aspirated GAS

Fits Years: 2003 2004 2005 2006