Bosch 18222 Oxygen Sensor - Upstream Left or Upstream Right

Bosch Wideband O2 Sensor for OE-Style Control

Bosch Part Number 18222 is an OE Quality Oxygen Sensor built for precise air-fuel ratio monitoring in modern engine management systems. This wideband A/F oxygen sensor delivers continuous lambda feedback for accurate mixture control, helping the ECU respond quickly across changing load and temperature conditions.

Compatible With 2020-2025 Ford Explorer, 2021-2025 Ford E-350 Super Duty, and 2021-2024 Ford F-150 in the listed upstream positions, Bosch 18222 is a direct-fit replacement for vehicles that require a 5-wire wide band sensor with a threaded mount and included wiring harness.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement
• Heated design for faster sensor warm-up and stable operation
• Specific-fit replacement with oblong female connector
• 5-wire configuration with pin terminals and included wiring harness
• Threaded 18 mm mounting with 22 mm hex size
• Robust metal housing for OE-style durability
• Overall length: 31.9 in; sealing surface to connector end: 30.7 in

Product Details

Bosch OE Quality Oxygen Sensor 18222 uses wideband sensor technology to provide the ECU with more detailed feedback than a traditional switching sensor. Bosch pioneered the first wideband A/F oxygen sensor and continues to supply OE-proven sensor designs for modern emissions and fuel-control systems. This part number 18222 is engineered for upstream left or upstream right applications where precise mixture control matters for drivability, fuel efficiency, and emissions performance.

This part cross-references Ford OE numbers L1MZ9F472C and L1MZ9F472D for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings
• Rough idle or inconsistent engine response
• Reduced fuel economy caused by inaccurate sensor feedback
• Emissions test failures tied to sensor degradation

Installation Notes

Verify the connector shape, 5-wire terminal layout, thread size, and upstream position before installation. This Bosch 18222 sensor is a specific-fit replacement, so matching the vehicle application and sensor location is important for proper operation. Use the existing threaded mounting point and confirm the harness routing clears heat sources and moving components.

Quality Assurance

Bosch backs this OE Quality Oxygen Sensor with more than five decades of OE development in emissions and engine-management technology. The sensor uses a ceramic construction and optimized heater control to support reliable performance through rapid load changes and repeated thermal cycling.