HomeEmission Control > SensorsBosch 13250 Oxygen Sensor - Downstream or Upstream
Part #: 13250

Bosch 13250 Oxygen Sensor - Downstream or Upstream

Actual OE Oxygen Sensor, Downstream
⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Actual OE Oxygen Sensor, Downstream
🚗Fitment: Subaru, Forester, Impreza, SVX, and Legacy
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Bosch Actual OE Oxygen Sensor 13250

The Bosch Actual OE Oxygen Sensor 13250 is designed specifically for Subaru Forester, Impreza, and Legacy models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

  • Specific fit for Subaru Forester, Impreza, and Legacy
  • Heated narrow-band oxygen sensor for precise readings
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Includes 15.2-inch wiring harness with 4-pin female connector
  • Durable metal housing with steel finish for long-lasting use

Detailed Features and Specifications

This Bosch oxygen sensor features a 4-wire configuration with a 4-pin female connector in a square shape, ensuring secure and reliable electrical connections. The wiring harness length is 15.2 inches, with an overall length of 18.9 inches and a sealing surface to connector length of 17.7 inches, providing ample reach for installation. The sensor is threaded with an 18 mm diameter and 18 mm thread size, designed for a threaded mounting type without a mounting bracket. The sensor housing is made of metal with a steel finish, weighing approximately 0.26 lbs. This narrow-band heated oxygen sensor is engineered as a standard replacement part, maintaining the original equipment specifications for emission control systems.

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is developed to meet original equipment standards, providing reliable and precise sensor performance. This product line focuses on delivering sensors that match the exact fit and function of factory-installed parts, ensuring compatibility and durability for specific vehicle applications like the Subaru Forester, Impreza, and Legacy. The 13250 part number is part of this line, offering a direct replacement solution for emission control sensors.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for proper air-fuel mixture
  • Helps resolve engine performance issues such as rough idling or hesitation
  • Reduces emissions by ensuring proper catalytic converter function
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves fuel efficiency by maintaining optimal combustion

Installation Notes and Tips

When installing the Bosch 13250 oxygen sensor, ensure the vehicle is compatible with this specific fit for Subaru Forester, Impreza, and Legacy models. Use a 22 mm wrench or socket for the threaded installation. Verify the wiring harness and connector orientation before securing the sensor to avoid damage. The sensor includes a wiring harness with a female 4-pin connector, so confirm proper connection to the vehicle’s wiring system. Avoid overtightening to prevent thread damage.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 13250 is a standard replacement part designed to match original equipment specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors to cover defects in materials and workmanship.

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998SubaruForester2.5LH4DownstreamActual OE Oxygen Sensor
1998SubaruImpreza2.2LH4DownstreamActual OE Oxygen Sensor
1998SubaruImpreza2.5LH4DownstreamActual OE Oxygen Sensor
1995SubaruImpreza1.8LH4UpstreamActual OE Oxygen Sensor
1994SubaruImpreza1.8LH4UpstreamActual OE Oxygen Sensor
1994SubaruLegacy2.2LH4UpstreamActual OE Oxygen Sensor
1993SubaruImpreza1.8LH4UpstreamActual OE Oxygen Sensor
1993SubaruLegacy2.2LH4UpstreamActual OE Oxygen Sensor
1992SubaruLegacy2.2LH4UpstreamActual OE Oxygen Sensor
1991SubaruLegacy2.2LH4UpstreamActual OE Oxygen Sensor
1990SubaruLegacy2.2LH4UpstreamActual 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.