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Bosch 18169 Oxygen Sensor - Downstream Right
| Brand | Bosch 18169 |
|---|---|
| Position | Downstream Right |
| Wiring Harness Length | 23.3 |
| Terminal Type | Pin |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Standard replacement |
| Connector Shape | Rectangle |
| Terminal Quantity | 4 |
| Connector Gender | Female |
| Terminal Gender | Female |
| Overall Length | 26.6 |
| Mounting Type | Threaded |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.330693 lb |
| Heated (Oxygen Sensor) | Yes |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 25.4 in |
| Mounting Bracket Included | No |
| Oxygen Sensor Type | Narrow-band heated |
| Sensor Type | Narrow-band |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
| Product line | OE Quality Oxygen Sensor |
| Fits | Lexus and Toyota · 17 vehicles |
Specific-fit replacement. Built for direct application matching with a threaded mounting design.
Heated narrow-band design. Supports quicker closed-loop operation and accurate air-fuel feedback.
Bosch OE development. Backed by decades of sensor engineering for emission control systems.
Cross-references 894650E220 and 894650E230 for the same application. See all 2.
Bosch validated oxygen sensor
Bosch 18169 is a specific-fit, narrow-band heated oxygen sensor built for precise air-fuel ratio feedback and stable closed-loop control. It uses a threaded metal housing, a 4-wire layout, and a rectangular female connector for direct replacement applications.
Key features
- Specific-fit oxygen sensor for emission control applications
- Narrow-band heated design for quicker closed-loop operation
- Advanced ceramic sensing element with optimized heater control
- Threaded mounting with 18 mm thread size and 22 mm hex size
- 4-wire configuration with included wiring harness
- Metal housing built for high-temperature and vibration exposure
Detailed description
Bosch 18169 is part of the Bosch Validated Oxygen Sensor line, a product family backed by Bosch OE development experience and engineered for accurate lambda measurement. This sensor is designed to deliver consistent signal response under a wide range of operating conditions, helping the ECU maintain stable combustion control and lower emissions. It is a strong match for drivers searching for a Lexus RX350 oxygen sensor, Lexus RX450h downstream right oxygen sensor, or Toyota Highlander downstream right oxygen sensor replacement. This part cross-references 894650E220 and 894650E230 for the same application.
What it is used for
- Replacing a worn or slow-responding oxygen sensor
- Restoring accurate air-fuel ratio feedback to the ECU
- Addressing emission-related fault codes tied to sensor performance
- Correcting unstable closed-loop fuel control
- Supporting proper combustion monitoring in the exhaust stream
Installation notes and tips
Fits 2016-2022 Lexus RX450h, Downstream Right. Fits 2016-2018 Lexus RX350, Downstream Right. Fits 2019 Lexus RX350, Downstream Right. Fits 2020 Lexus RX350, Downstream Right. Fits 2021-2022 Lexus RX350, Downstream Right. Fits 2017-2019 Toyota Highlander, Downstream Right. Confirm connector shape, thread size, and harness length before installation. Use the vehicle’s service procedure for sensor removal and tightening.
Quality assurance
Bosch draws on more than five decades of OE sensor development, and this validated oxygen sensor line is built to the same standards used in original equipment applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2022 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2022 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2021 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2021 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2020 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | Except Japan Built; Bosch Validated Oxygen Sensor |
| 2020 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2019 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | Bosch Validated Oxygen Sensor |
| 2019 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2019 | Toyota | Highlander | 3.5L | V6 | GAS | Downstream Right | Bosch Validated Oxygen Sensor |
| 2018 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | Except Japan Built; Bosch Validated Oxygen Sensor |
| 2018 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2018 | Toyota | Highlander | 3.5L | V6 | GAS | Downstream Right | Bosch Validated Oxygen Sensor |
| 2017 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | Except Japan Built; Bosch Validated Oxygen Sensor |
| 2017 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
| 2017 | Toyota | Highlander | 3.5L | V6 | GAS | Downstream Right | Bosch Validated Oxygen Sensor |
| 2016 | Lexus | RX350 | 3.5L | V6 | — | Downstream Right | Except Japan Built; Bosch Validated Oxygen Sensor |
| 2016 | Lexus | RX450h | 3.5L | V6 | — | Downstream Right | OE Quality Oxygen Sensor |
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