Bosch Oxygen Sensor P/N:16581

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$220.99
MPN: 16581
Item Package Quantity: 1
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Bosch Oxygen Sensor P/N:16581
Bosch Oxygen Sensor P/N:16581
$220.99

Keep the fuel system in accurate closed-loop control with the Bosch Oxygen Sensor 16581, a switching-type (narrowband) O2 sensor that measures exhaust oxygen and feeds air-fuel-ratio data to the ECU for stable combustion control. It installs as a direct-fit replacement for the 2018-2025 Honda Accord [L4-1.5L], 2022-2025 Honda Civic [L4-1.5L], 2023-2025 Acura Integra [L4-1.5L], 2023-2025 Honda CR-V [L4-1.5L], and 2024-2025 Acura Integra [L4-2.0L].

  • Switching-type feedback: supplies precise air-fuel-ratio measurements to the ECU, helping maintain quick closed-loop operation and lower emissions.
  • Integrated heater: a built-in heater element brings the sensor to operating temperature quickly (Bosch rates light-off in under 10 seconds) for faster cold-start closed-loop control.
  • Durable construction: steel housing, advanced ceramic element, and TSP coating designed to withstand exhaust streams up to 1,880°F along with vibration and corrosion.
  • Ready to install: threaded M18 x 1.5 body with a 22 mm hex and a square, blade-type male connector; a wiring harness is included and conductive anti-seize is pre-applied to the threads. No mounting bracket is included.

This is a standard-replacement-grade sensor backed by a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks. The listed applications each use one sensor, and it ships one per package. Country of origin: Japan.

Interchange: Manufacturer part number 16581.

Frequently Asked Questions

What type of oxygen sensor is the Bosch 16581?

It is a switching-type (narrowband) heated oxygen sensor that measures exhaust oxygen and reports air-fuel-ratio data to the ECU for closed-loop fuel control.

Which vehicles does the Bosch 16581 fit?

It's a direct-fit replacement for the 2018-2025 Honda Accord (L4-1.5L), 2022-2025 Honda Civic (L4-1.5L), 2023-2025 Acura Integra (L4-1.5L), 2023-2025 Honda CR-V (L4-1.5L), and 2024-2025 Acura Integra (L4-2.0L).

Is a wiring harness or anti-seize included?

Yes. A wiring harness is included and conductive anti-seize comes pre-applied on the threads. A mounting bracket is not included.

What are signs the oxygen sensor may need replacing?

Common signs include an illuminated check engine light, reduced fuel economy, or a failed emissions test. Have the cause diagnosed first, since these symptoms can have other causes.

Is the Bosch 16581 a heated sensor?

Yes, it has an integrated heater element that brings it to operating temperature quickly for faster closed-loop control after a cold start.