Bosch 13951 – Oxygen Sensor (Downstream)

Description

Bosch Oxygen Sensor 13951 – For BMW Vehicles

Manufacturer Part Number: 13951

Product Description

The Bosch Oxygen Sensor 13951 is a premium-grade rear oxygen sensor designed specifically for BMW models, ensuring optimal performance and emissions control. This sensor is engineered to OEM standards, providing reliable feedback on the exhaust concentration of oxygen, which is crucial for monitoring the air-to-fuel mixture in your vehicle’s engine. By accurately assessing whether your engine is running rich or lean, this oxygen sensor not only helps reduce harmful emissions but also enhances overall engine efficiency.

With a length of 935mm and equipped with an OE plug, the Bosch 13951 is a perfect fit for various BMW models. It is designed for use in cylinders 4-6, making it essential for maintaining your vehicle’s performance. The typical lifespan of an oxygen sensor is around 100,000 miles, but factors like catalyst depletion can lead to failure. Regular replacement of your oxygen sensor will ensure your engine runs smoothly and efficiently.

Vehicle Compatibility

This part fits some of the popular models below. For Fitment Confidence, please use the vehicle selector tool above to verify exact compatibility.

• BMW Z4 M Roadster / 3.2L6, 2001-2008
• BMW Z4 M Coupe / 3.2L6, 2001-2008
• BMW M3 Base / 3.2L6, 2001-2006
• BMW Z3 M Coupe / 3.2L6, 2002
• BMW Z3 M Roadster / 3.2L6, 2001-2002

Cross Reference Numbers

• 11 78 1 406 622
• 11781406622

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• Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
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• Established Trust: Serving the European auto community since 2000.

Frequently Asked Questions

What does this part do?

The Bosch Oxygen Sensor measures the concentration of oxygen in the exhaust gases of your vehicle. This information is used by the engine control unit to adjust the air-fuel mixture for optimal combustion, which improves fuel efficiency and reduces emissions.

What vehicles is this part compatible with?

This oxygen sensor is compatible with various BMW models, including the Z4 and M3 series from 2001 to 2008. For precise fitment, please use the vehicle selector tool.

What are common signs this part may need replacement?

Key symptoms indicating that the oxygen sensor may require replacement include poor fuel economy, rough engine performance, illuminated check engine light, and increased emissions. If you notice these signs, it is advisable to inspect your oxygen sensor.

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Specification

• • eEuroparts SKU : 235806
  • Weight : 0.366 lbs
  • Dimensions (L x W x H) : 2.2047 x 1.9685 x 5.8268 in
  • Barcode : 00028851139519
  • Manufacturer Part # : 13951
• Brand : Bosch
• Manufacturer : Bosch
• MPN : 13951
• Part Type : Oxygen Sensor
• Position : Downstream
• OE Part Numbers : 11781406622
• Features : Automotive Color / Finish : Steel
  Automotive Item Weight (lbs) : 0.326284 lb
  Connector Gender : Female
  Connector Shape : Round
  Grade Type : Regular
  Heated (Oxygen Sensor) : Yes
  Hex Size (Oxygen Sensor) : 22 mm
  Housing Material : Metal
  Length (Sealing Surface To End Of Connector) : 35.6299212598425 in
  Mounting Bracket Included : No
  Mounting Type : Threaded
  Overall Length : 36.8110236220472
  Oxygen Sensor Type : Narrow-band heated
  Prop 65 Warning Label Required? : No
  Sensor Type : Heated
  Terminal Gender : Female
  Terminal Quantity : 4
  Terminal Type : Pin
  Thread Diameter : 18
  Thread Size : 18
  Universal Or Specific Fit : Specific
  Wire Quantity : 4
  Wiring Harness Included : Yes
  Wiring Harness Length : 33.1102362204724

• Fitment
  • Fitment Type : Vehicle Specific