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Bosch 18181 Oxygen Sensor - Downstream or Upstream
Reliable Oxygen Sensor for Mitsubishi Lancer and Outlander Models
The Bosch Validated Oxygen Sensor 18181 is designed specifically for select Mitsubishi vehicles, including the Lancer, Outlander, Outlander Sport, and RVR. This oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.
Key Features of Bosch Oxygen Sensor 18181
- Specific fit for Mitsubishi Lancer, Outlander, Outlander Sport, and RVR models
- Heated wide band oxygen sensor for precise emissions monitoring
- Threaded mounting type with 18 mm thread diameter and 22 mm hex size
- 5-wire design with 6 blade terminals and a male rectangular connector
- Durable metal housing finished in steel for long-lasting performance
- Wiring harness included with a length of 38.2 inches and overall length of 41.7 inches
Detailed Description of Bosch Validated Oxygen Sensor
The Bosch Validated Oxygen Sensor 18181 is a standard replacement part engineered to meet the exact specifications of Mitsubishi vehicles such as the Lancer and Outlander series. Featuring a heated wide band sensor type, it provides accurate and responsive oxygen level readings to the engine control unit. The sensor’s threaded mounting type with an 18 mm diameter and 22 mm hex size allows for secure installation. Its 5-wire configuration with 6 blade terminals and a male rectangular connector ensures reliable electrical connections. The sensor is constructed with a metal housing finished in steel, offering durability under high-temperature conditions. The included wiring harness measures 38.2 inches, with an overall length of 41.7 inches, facilitating proper fitment and ease of installation.
Common Applications and Issues Addressed
- Helps maintain proper air-fuel ratio for efficient combustion
- Reduces harmful emissions by providing accurate oxygen readings
- Prevents engine performance issues related to faulty sensors
- Resolves check engine light triggers caused by oxygen sensor faults
- Supports optimal fuel economy in Mitsubishi Lancer and Outlander models
Installation Notes and Tips
When installing the Bosch oxygen sensor 18181, ensure the threaded mounting hole is clean and free of debris. Use a 22 mm wrench or socket for proper tightening without over-torquing. The sensor’s wiring harness and connector are designed for specific fitment, so verify compatibility with your Mitsubishi Lancer, Outlander, Outlander Sport, or RVR before installation. Avoid damaging the wiring during installation to maintain sensor functionality.
Quality Assurance and Warranty
The Bosch Validated Oxygen Sensor 18181 is manufactured to meet OEM standards for fit, form, and function. Bosch’s product line is known for rigorous validation processes to ensure reliable performance and durability. This oxygen sensor is a standard replacement part designed to restore proper emissions control and engine operation. Warranty details are provided by Bosch and should be confirmed at the time of purchase.
| Brand | Bosch |
| Part Number | 18181 |
| Position | Bosch Validated Oxygen Sensor, Upstream and Downstream |
| Wiring Harness Length | 38.2 |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Standard replacement |
| Connector Shape | Rectangle |
| Terminal Quantity | 6 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Overall Length | 41.7 |
| 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) | 40.6 in |
| Mounting Bracket Included | No |
| Oxygen Sensor Type | Wide band |
| Sensor Type | Narrow-band |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
This part fits 17 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Mitsubishi | Outlander Sport | 4WD | 2.0L | L4 | Upstream | Bosch Validated Oxygen Sensor |
| 2018 | Mitsubishi | Outlander Sport | 2.4L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2017 | Mitsubishi | Outlander Sport | 2.4L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2017 | Mitsubishi | Outlander Sport | 2.0L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2016 | Mitsubishi | Lancer | 2.4L | L4 | Upstream | OE Quality Oxygen Sensor | |
| 2016 | Mitsubishi | Outlander Sport | 2.4L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2016 | Mitsubishi | Outlander Sport | 2.0L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2015 | Mitsubishi | Lancer | 2.4L | L4 | Upstream | OE Quality Oxygen Sensor | |
| 2015 | Mitsubishi | Outlander Sport | 2.4L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2013 | Mitsubishi | Lancer | 2.4L | L4 | Upstream | OE Quality Oxygen Sensor | |
| 2013 | Mitsubishi | Outlander | 2.4L | L4 | Upstream | OE Quality Oxygen Sensor | |
| 2012 | Mitsubishi | Outlander | 2.4L | L4 | Downstream | Bosch Validated Oxygen Sensor | |
| 2011 | Mitsubishi | Lancer | 2.0L | L4 | Upstream | without California Emission System; Bosch Validated Oxygen Sensor | |
| 2011 | Mitsubishi | Lancer | 2.4L | L4 | Upstream | without California Emission System; Bosch Validated Oxygen Sensor | |
| 2011 | Mitsubishi | Outlander | 2.4L | L4 | Upstream | Bosch Validated Oxygen Sensor | |
| 2011 | Mitsubishi | Outlander Sport | 2.0L | L4 | Upstream | without California Emission System; Bosch Validated Oxygen Sensor | |
| 2011 | Mitsubishi | RVR | 2.0L | L4 | Upstream | Bosch Validated Oxygen Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.