BMW Oxygen Sensor – Bosch 11781720860

BMW Oxygen Sensor – Bosch 11781720860

Restore proper fuel efficiency and engine performance with this high-quality Bosch oxygen sensor. The O2 sensor measures the amount of unburned fuel in the exhaust, allowing the ECU to adjust air/fuel ratios for lower emissions, improved MPG, and smoother operation.

When oxygen sensors fail, performance and mileage drop gradually. Replacing yours is straightforward and ensures your BMW runs at its best.

Key Features

Genuine Bosch Part – OEM supplier for BMW.

Restores Fuel Economy – Ensures proper combustion efficiency.

Direct Replacement – Precision fit for listed BMW models.

Durable Construction – Withstands high heat and exhaust conditions.

Easy Installation – Apply anti-seize to threads for trouble-free service.

Specifications

Type: Oxygen Sensor (Pre-Catalytic Converter)

Brand: Bosch

BMW OEM Part Number: 11-78-1-720-860

Fits These Cars

BMW E30 325i – M20 2.5L (1987–1991)
BMW E30 325is – M20 2.5L (1987–1991)
BMW E30 325ix – M20 2.5L (1988–1991)
BMW E31 850CSi – S70 5.6L V12 (1994–1995)