Bosch 18068 Oxygen Sensor - Downstream

Bosch OE Oxygen Sensor for Ford E-350 Super Duty

Bosch Part Number 18068 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It is a narrow-band heated downstream sensor for specific applications, including 2011-2015 Ford E-350 Super Duty models with the Ambulance Package.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Part Number 18068
• Narrow-band heated sensor design for stable closed-loop operation
• Specific fit with threaded mounting
• 4-wire configuration with included wiring harness
• Round male connector with blade terminals
• 22 mm hex size and 18 mm thread diameter
• Steel finish with metal housing for underbody service conditions

Product Details

Bosch 18068 uses a switching-type oxygen sensing element to measure exhaust oxygen content and send accurate feedback to the engine control unit. Bosch developed this sensor line from its OE oxygen sensor experience, including narrowband planar designs that improve response time and closed-loop transition. For Ford E-350 Super Duty downstream service, this sensor supports consistent combustion control and emissions monitoring across changing thermal and vibration loads.

This part is a direct-fit replacement for 2011-2015 Ford E-350 Super Duty, downstream, with Ambulance Package. The Bosch Actual OE Oxygen Sensor line is built around OE-proven ceramic elements, controlled heater operation, and high-temperature-resistant materials for dependable sensor output in demanding exhaust environments. Part Number 18068 is a practical choice when restoring accurate downstream oxygen sensor readings on the Ford E-350 Super Duty.

Common Issues This Sensor Can Address

• Fault codes related to downstream oxygen sensor performance
• Unstable air-fuel feedback from a worn narrow-band sensor
• Delayed closed-loop operation after sensor aging
• Emissions test failures tied to inaccurate exhaust oxygen readings
• Rough combustion control caused by degraded sensor response

Installation Notes

Verify the downstream location, threaded mounting, 4-wire connector style, and 18 mm thread size before installation. The sensor includes a wiring harness and uses a round male connector with blade terminals, so match the connector and harness routing to the original layout on the Ford E-350 Super Duty. Inspect the exhaust bung threads and surrounding wiring for heat damage before installing Bosch 18068.

Quality Assurance

Bosch backs this oxygen sensor line with more than five decades of OE development and aftermarket supply experience. The Actual OE Oxygen Sensor series is engineered to deliver OE-level fit and sensor behavior for applications such as the Ford E-350 Super Duty.