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Bosch 18179 Oxygen Sensor - Downstream
Reliable Oxygen Sensor for Volkswagen Jetta
The Bosch Validated Oxygen Sensor 18179 is designed specifically for Volkswagen Jetta models, providing accurate air-fuel mixture readings to optimize engine performance and emissions control. This narrow-band heated oxygen sensor ensures precise monitoring for efficient combustion and reduced emissions.
Key Features of Bosch Oxygen Sensor 18179
- Specific fit for Volkswagen Jetta vehicles
- Narrow-band heated oxygen sensor type for accurate readings
- Threaded mounting type with 18 mm thread diameter and 22 mm hex size
- Includes a 35.6-inch wiring harness with 4 wires and blade terminals
- Oblong male connector with 4 male terminals for secure connection
- Durable metal housing finished in steel for long-lasting use
- Overall length of 39 inches and wiring harness length of 35.6 inches
About the Bosch Validated Oxygen Sensor Line
The Bosch Validated Oxygen Sensor product line focuses on delivering reliable emission control components that meet or exceed OEM specifications. The 18179 sensor is engineered to provide consistent performance and durability, ensuring compatibility and proper function within Volkswagen Jetta emission systems.
Detailed Product Description
This Bosch oxygen sensor 18179 is a standard replacement part designed to maintain optimal engine efficiency and emissions compliance in Volkswagen Jetta models. Featuring a narrow-band heated sensor element, it quickly reaches operating temperature for accurate oxygen level detection. The sensor’s threaded mounting and 18 mm thread size allow for straightforward installation, while the 4-wire harness with blade terminals and oblong male connector ensures a secure electrical connection. Constructed with a metal housing and finished in steel, this sensor withstands harsh engine conditions and contributes to reliable vehicle operation.
Common Applications and Issues Addressed
- Restores proper air-fuel ratio monitoring in Volkswagen Jetta engines
- Helps resolve rough idling and engine hesitation caused by faulty sensors
- Reduces increased emissions and failed emissions tests
- Improves fuel economy by providing accurate oxygen readings
- Prevents check engine light triggers related to oxygen sensor faults
Installation Notes and Tips
When installing the Bosch oxygen sensor 18179, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length of 35.6 inches is sufficient for your vehicle’s routing. Confirm the male oblong connector aligns properly with the vehicle’s wiring harness to avoid connection issues. Do not overtighten the sensor; torque to manufacturer specifications to prevent damage.
Quality Assurance and Warranty
Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Bosch Validated Oxygen Sensor 18179 undergoes rigorous testing to comply with OEM requirements. While specific warranty details are not provided here, Bosch typically offers coverage against defects in materials and workmanship for their emission control sensors.
| Brand | Bosch |
| Part Number | 18179 |
| Position | Bosch Validated Oxygen Sensor, Downstream |
| Wiring Harness Length | 35.6 |
| Terminal Type | Blade |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Standard replacement |
| Connector Shape | Oblong |
| Terminal Quantity | 4 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Overall Length | 39 |
| 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) | 37.8 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 |
This part fits 3 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2018 | Volkswagen | Jetta | 1.4L | L4 | Downstream | Bosch Validated Oxygen Sensor | |
| 2017 | Volkswagen | Jetta | 1.4L | L4 | Downstream | Bosch Validated Oxygen Sensor | |
| 2016 | Volkswagen | Jetta | 1.4L | L4 | GAS | Downstream | 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.