Bosch 15385 Oxygen Sensor - Downstream Right

Bosch OE Oxygen Sensor for Infiniti Q45

Bosch Part Number 15385 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It is a narrow-band heated sensor with a threaded mounting design, made for stable closed-loop control and consistent emissions monitoring on the 1996 Infiniti Q45, downstream right.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Narrow-band heated sensor design
• Specific fit for the 1996 Infiniti Q45, downstream right
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• 4-wire harness with round connector and included wiring harness
• Metal housing for high-temperature and vibration resistance
• 23.3 in wiring harness length and 24 in sealing-surface-to-connector length

Product Details

Bosch 15385 uses a switching-type oxygen sensing element to measure exhaust oxygen content and send accurate signals to the ECU. Bosch developed this sensor line from its original oxygen sensor designs and later planar narrowband technology, focusing on faster light-off, quicker closed-loop operation, and improved lambda accuracy. For drivers servicing a 1996 Infiniti Q45, Bosch 15385 supports precise fuel control in the downstream right position while maintaining OE-style fit and signal behavior.

This part cross-references 226A067U06 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Unstable air-fuel ratio feedback
• Delayed closed-loop fuel control
• Inaccurate emissions monitoring
• Rough combustion control caused by a worn downstream sensor

Installation Notes

Confirm the downstream right location before ordering, since this Bosch 15385 application is specific to the 1996 Infiniti Q45. The sensor uses a threaded mount with an 18 mm thread size and 22 mm hex, so the correct oxygen sensor socket or wrench is recommended. Inspect the connector shape, wire count, and harness routing against the original sensor before installation.

Quality Assurance

Bosch backs this oxygen sensor line with more than five decades of OE development and aftermarket supply experience. The design uses advanced ceramic elements, optimized heater control, and high-temperature-resistant materials to maintain consistent operation under thermal and vibration load.