Oxygen sensor replacement cost

Oxygen sensor replacement cost varies based on whether the sensor is actually an old style oxygen sensor or actually air/fuel ratio sensor. Many people mistakenly call and air/fuel ratio sensor, an oxygen sensor. While an older oxygen sensor costs around $80, it’s not uncommon for an air/fuel ratio sensor to cost almost $400 for the part alone. To learn more about the difference between an O2 sensor and an air/fuel ratio sensor, see this post.

The sensor replacement cost also varies by its location. Upstream sensors can be mounted in the exhaust manifold and accessed right out in the open. But others are located below the engine and can be very hard to access.

Typical oxygen sensor labor cost

Once the diagnostic is complete, the labor to replace an oxygen sensor is usually a maximum of 1 hour, with many sensors taking a half hour or less. For traditional oxygen sensors, that brings the total oxygen sensor replacement cost to $$275 to $390 including the part. However, when you add in the diagnostic charge, the total approaches $500.

Typical air/fuel ratio sensor replacement cost

The labor to replace an air/fuel ratio sensor is about the same as for a traditional oxygen sensor. However, because the part if more expensive, plan on spending around $500 plus the cost of the diagnostic charge.

The sensor itself may look like an oxygen sensor, but an air/fuel ratio sensor costs a lot more

©, 2023 Rick Muscoplat

Posted on December 5, 2023 by Rick Muscoplat