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Part #: 17259

Bosch 17259 Oxygen Sensor - Upstream

Actual OE Oxygen Sensor, Upstream
7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Upstream
Fitment: Ford, Fusion
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Overview of Bosch Actual OE Oxygen Sensor 17259

The Bosch Actual OE Oxygen Sensor 17259 is designed specifically for Ford Fusion models, providing precise air-fuel mixture readings to optimize engine performance and emissions control. This heated, wide-band oxygen sensor ensures accurate data transmission to your vehicle's engine control unit for efficient combustion management.

  • Heated oxygen sensor for faster response times
  • Specific fit for Ford Fusion vehicles
  • Wide-band sensor type for accurate air-fuel ratio measurement
  • 9.3-inch wiring harness length with 5 wires and 6 terminals
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Male oblong connector with included wiring harness
  • Durable metal housing with steel finish
  • Standard replacement grade for reliable performance

Detailed Product Description

The Bosch Actual OE Oxygen Sensor 17259 is engineered as a direct replacement part for Ford Fusion models, ensuring compatibility and ease of installation. Featuring a heated element, this sensor reaches operating temperature quickly, improving emission control and fuel efficiency. The wide-band sensor technology provides a broad measurement range of oxygen levels in the exhaust, allowing the engine control unit to adjust fuel delivery precisely. The sensor includes a 9.3-inch wiring harness with 5 wires and 6 terminals, terminating in a male oblong connector designed for a secure and specific fit. Its threaded mounting type with an 18 mm diameter and 22 mm hex size allows for straightforward installation using standard tools. The metal housing with a steel finish offers durability under high-temperature conditions typical of exhaust systems.

About the Bosch Actual OE Oxygen Sensor Product Line

The Actual OE Oxygen Sensor line by Bosch focuses on providing original equipment quality replacement sensors that meet or exceed factory specifications. This product line is designed to deliver reliable performance and fitment for specific vehicle applications, such as the Ford Fusion. By using genuine Bosch technology, the Actual OE Oxygen Sensor ensures consistent sensor response and durability, supporting proper engine management and emissions compliance.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for optimal fuel mixture
  • Resolves check engine light codes related to oxygen sensor failure
  • Improves fuel economy by enabling precise air-fuel adjustments
  • Reduces harmful emissions by maintaining proper combustion
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

  • Ensure vehicle compatibility: specifically designed for Ford Fusion models
  • Use a 22 mm oxygen sensor socket for removal and installation
  • Do not overtighten; torque to manufacturer specifications
  • Verify wiring harness connections match the male oblong connector
  • Inspect sensor threads and sealing surface before installation

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 17259 is manufactured to meet stringent quality standards, providing a standard replacement grade sensor with reliable performance. Bosch products typically come with a limited warranty covering defects in materials and workmanship; please refer to Bosch documentation for specific warranty details related to this oxygen sensor.

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2019FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2018FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2017FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2016FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2015FordFusion1.5LL4UpstreamActual OE Oxygen Sensor
2014FordFusion1.5LL4UpstreamActual OE 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.