Bosch 15745 Oxygen Sensor - Downstream or Downstream Right

Bosch OE Quality Wideband O2 Sensor

Bosch 15745 is a specific-fit wideband air-fuel oxygen sensor built for precise mixture monitoring in modern engine management systems. It provides continuous lambda-range feedback to the ECU, helping maintain accurate fuel control in demanding driving conditions.

Compatible With 2019-2025 Jeep Wrangler, downstream; 2019-2024 Ram 1500, downstream right; 2022-2023 Chrysler 300, downstream right; 2022-2023 Dodge Challenger, downstream right; 2021-2023 Dodge Charger, downstream right; 2022-2023 Jeep Grand Wagoneer, downstream right; and 2022-2023 Jeep Wagoneer, downstream right.

• Wide band sensor type for detailed air-fuel ratio measurement
• Heated design for faster sensor warm-up and stable operation
• Specific fit with 4-wire harness and included wiring harness
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Oblong female connector with female terminals
• Metal housing and mounting bracket included
• Overall length: 15.2 in; harness length: 11.7 in

OE Quality Sensor Line

Bosch’s OE Quality Oxygen Sensor line draws on more than five decades of original-equipment development. Bosch pioneered the wideband A/F oxygen sensor design used in modern engine control, and this part reflects that OE-focused engineering with fast light-off, controlled heater performance, and durable ceramic construction. Bosch 15745 is a direct replacement choice for vehicles that rely on accurate downstream oxygen sensor feedback, including Jeep Wrangler, Ram 1500, and select Dodge and Jeep applications.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn downstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Rougher engine operation from poor mixture control
• Emissions test failures tied to sensor degradation

Installation Notes and Tips

Verify the connector shape, wire count, and downstream position before installation. This Bosch 15745 sensor uses a threaded mount and a specific-fit harness, so matching the original routing and connector orientation is important for proper installation. Confirm the vehicle application by year, make, model, and sensor position before ordering.

Quality Assurance

Bosch OE Quality Oxygen Sensor parts are built to OE-level specifications and backed by Bosch’s long history in engine management sensor development. This part cross-references Mopar 68291046AA for the same application.