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Bosch 15175 Oxygen Sensor - Upstream
| Brand | Bosch 15175 |
|---|---|
| Position | Upstream |
| Product line | Actual OE Oxygen Sensor |
| Fits | Land Rover · 6 vehicles |
OE direct replacement. Standard replacement oxygen sensor with specific fit and threaded mounting.
Heated narrow-band design. Provides faster light-off and quicker closed-loop operation.
Advanced ceramic elements. Built for consistent performance under harsh heat and vibration.
Cross-references MHK100920 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Bosch OE Oxygen Sensor for Discovery
Bosch 15175 is a narrow-band heated oxygen sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for the 1999-2004 Land Rover Discovery, upstream applications.
Key Features
- Specific-fit oxygen sensor for direct application matching
- Narrow-band heated design for faster closed-loop operation
- 4-wire configuration with blade terminals and rectangular connector
- Threaded mounting with 18 mm thread diameter and 22 mm hex size
- 10.1 in wiring harness length with included harness
- Metal housing with high-temperature-resistant construction
- Fits 1999-2004 Land Rover Discovery, upstream
Product Details
This Bosch Actual OE Oxygen Sensor uses advanced ceramic sensing elements and optimized heater control to deliver consistent signal response across changing exhaust temperatures. Bosch’s OE development history includes early thimble-style sensors and later planar narrowband designs, and that engineering background is reflected in the sensor’s fast light-off behavior and accurate lambda feedback. Bosch 15175 is a direct replacement choice for Land Rover Discovery upstream service where precise oxygen sensing is required.
This part cross-references Monroe Shocks & Struts (e.g., MHK100920) for the same application.
Common Symptoms It Can Address
- Check engine light related to oxygen sensor performance
- Unstable idle or inconsistent air-fuel control
- Reduced fuel economy from inaccurate exhaust feedback
- Delayed closed-loop operation after startup
- Emissions test failure tied to upstream sensor readings
Installation Notes
Verify the upstream sensor location before installation and confirm the 18 mm threaded bung size matches the vehicle. Inspect the connector, harness routing, and exhaust threads for heat damage or corrosion before fitting Bosch 15175. Use proper oxygen sensor service tools to avoid damaging the sensor body or wiring.
Quality Assurance
Bosch supplies this Actual OE Oxygen Sensor with OE-proven engineering and durable materials developed for harsh thermal and vibration conditions. The design reflects Bosch’s long-standing oxygen sensor development for accurate, stable operation in aftermarket replacement service.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Land Rover | Discovery | — | 4.6L | V8 | Upstream | Actual OE Oxygen Sensor |
| 2003 | Land Rover | Discovery | — | 4.6L | V8 | Upstream | Actual OE Oxygen Sensor |
| 2002 | Land Rover | Discovery | — | 4.0L | V8 | Upstream | Actual OE Oxygen Sensor |
| 2001 | Land Rover | Discovery | — | 4.0L | V8 | Upstream | Actual OE Oxygen Sensor |
| 2000 | Land Rover | Discovery | — | 4.0L | V8 | Upstream | Actual OE Oxygen Sensor |
| 1999 | Land Rover | Discovery | Series II | 4.0L | V8 | Upstream | Actual OE Oxygen Sensor |
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