Bosch 17465 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for Ford Fiesta

Bosch 17465 is an Actual OE Oxygen Sensor built for precise air-fuel ratio monitoring in wideband applications. It fits 2014-2019 Ford Fiesta, upstream, and is engineered for direct replacement service on vehicles that require a specific-fit, heated wideband sensor.

Key Features

• Wideband air-fuel ratio sensor for continuous lambda measurement
• Specific-fit design for 2014-2019 Ford Fiesta, upstream
• Heated sensor with optimized heater control for faster response
• 5-wire harness with included wiring harness and oblong male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing and ceramic sensor construction for durability in thermal cycling
• Bosch Actual OE Oxygen Sensor line built from OE development experience

Product Details

Bosch 17465 is a wide band oxygen sensor that provides the ECU with detailed air-fuel feedback across the full operating range, rather than the limited on/off signal of a traditional switching sensor. That level of measurement supports accurate mixture control during idle, acceleration, and load changes. For Ford Fiesta owners searching for an upstream oxygen sensor replacement, this Bosch unit matches the specific application and uses OE-style engineering for consistent signal quality.

The Bosch Actual OE Oxygen Sensor line focuses on OE-proven fit and function, with fast light-off characteristics and robust construction for demanding exhaust temperatures. This part cross-references Ford C1BZ9F472B for the same application.

Common Problems This Part Can Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn wideband sensor
• Rough idle or hesitation caused by inaccurate exhaust feedback
• Reduced fuel economy from poor mixture control
• Higher emissions from delayed or unstable sensor response

Installation Notes and Tips

Fits 2014-2019 Ford Fiesta, upstream. Confirm the connector shape, wire count, thread size, and sensor position before installation. Because this is a threaded exhaust sensor, proper removal tools and anti-seize practices should be used only as specified by the vehicle service procedure. Verify the harness routing and connector lock engagement after installation.

Quality Assurance

Bosch has more than five decades of OE development experience and supplies oxygen sensors to the aftermarket with OE-proven design standards. Bosch 17465 is built as a standard replacement wideband sensor for accurate signal delivery and dependable service in modern engine management systems.