Bosch 18200 Oxygen Sensor - Upstream or Upstream Left

Bosch Wideband Oxygen Sensor for Honda

Bosch Validated Oxygen Sensor 18200 is a specific-fit, heated wideband A/F oxygen sensor built for precise air-fuel ratio feedback in modern Honda engine management systems. It delivers fast response and stable readings across the full lambda range for accurate control in Honda Odyssey, Passport, Ridgeline, Insight, Pilot, and Clarity applications.

Key Features

• Wide-band sensor design for continuous air-fuel ratio measurement
• Heated construction for faster light-off and stable operation
• Specific-fit replacement with 5-wire harness and included wiring harness
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with square male connector and blade terminals
• Bosch Validated Oxygen Sensor line backed by Bosch OE development experience

Product Line Details

The Bosch Validated Oxygen Sensor line brings OE-focused engineering to the aftermarket. Bosch pioneered the wideband planar pump-cell design used in modern engine control, and this sensor follows that approach with optimized heater control and durable ceramic construction for consistent signal quality under changing load and temperature conditions.

Detailed Description

Bosch 18200 is a wide-band heated oxygen sensor for upstream monitoring on select Honda models. It provides the ECU with detailed air-fuel ratio data, helping maintain accurate mixture control during idle, acceleration, and steady cruising. This part cross-references Honda OE numbers 365315MRA01 and 365315WJ004 for the same application. Fits 2021-2025 Honda Odyssey, Upstream Left; Fits 2021-2025 Honda Passport, Upstream Left; Fits 2021-2025 Honda Ridgeline, Upstream Left; Fits 2019-2022 Honda Insight, Upstream; Fits 2020-2022 Honda Pilot, Upstream Left; Fits 2018-2021 Honda Clarity, Upstream; Fits 2018-2020 Honda Odyssey, Upstream Left; Fits 2019-2020 Honda Passport, Upstream Left; Fits 2020 Honda Ridgeline, Upstream Left; Fits 2019 Honda Pilot, Upstream Left.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough idle or inconsistent fuel control from a failing upstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emissions test failures tied to sensor response or signal quality

Installation Notes and Tips

Confirm the connector shape, terminal count, thread size, and upstream left or upstream position before installation. This Bosch 18200 uses a square male connector, 6 terminals, and an 18 mm threaded mount. Verify harness routing and sensor location against the vehicle application before replacing the original unit.

Quality Assurance

Bosch has more than five decades of OE development experience in oxygen sensor technology. The Bosch Validated Oxygen Sensor 18200 is built to OE-style specifications for accurate signal output, thermal durability, and dependable operation in Honda engine management systems.