The Walker Products Oxygen Sensor (part number 250-54129) is a direct-fit replacement for 2018-2025 Lexus vehicles with 3.5L engines. The oxygen sensor measures combustion efficiency based off the amount of oxygen in the exhaust gas.
Features:
- Determines the oxygen content of the exhaust gas, monitoring the air fuel ratio for combustion efficiency.
- Coated in with electrodes made of a gas-permeable platinum layer.
- 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.
Specifications:
| Sensor Type | Wide-Band |
| Number of Wires | 5 |
| Number of Terminals | 4 |
| Connector Type | Spade |
| Connector Shape | Square |
| Connector Gender | Male |
| Terminal Gender | Female |
| Thread Size | M18 - 1.5 |
| Hex Size (mm) | 22 mm |
| Heated | Yes |
| Fit Type | Direct Fit |
Fits: 2018-2025 Lexus models including LC500h and LS500h — 3.5L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
WARNING: This product can expose you to chemicals, including Nickel and Nickel Alloyed Stainless Steel, which are known to the State of California to cause cancer or birth defects or other reproductive harm.
