Oxygen sensors for an Acura MDX typically cost about $60 to $250 per sensor for the part, with installed prices usually $150 to $350 per sensor. For a typical MDX with four sensors, you’re looking at roughly $600 to $1,400 in total for parts and labor, though exact quotes vary by year, sensor type, and local shop rates.
MDX models use multiple oxygen sensors to monitor exhaust gas and help control the fuel-air mixture. The price you pay depends on whether you’re replacing one sensor or all of them, as well as whether you choose OEM parts from Acura or aftermarket equivalents, and how much labor your shop charges. Below is a detailed look at the factors and typical costs as of 2026.
What affects the price
Several factors determine how much you’ll pay for an oxygen sensor replacement on an Acura MDX. Here is a concise breakdown of the main influences.
- Number of sensors in your MDX: Some models use four sensors (two upstream, two downstream); older configurations may differ.
- Sensor type: Upstream (pre-cat) vs downstream (post-cat) sensors, and whether the sensor is narrowband or wideband. Wideband sensors are typically more expensive.
- Brand and quality: OEM Acura parts tend to be pricier than aftermarket Denso/Bosch equivalents, and premium aftermarket sensors can vary in price.
- Where you buy the part: Dealer/authorized retailers vs independent auto parts stores vs online retailers—prices vary accordingly.
- Labor rates and time: Local labor rates and how long the job takes (often about 0.5–1.5 hours per sensor, depending on access).
In practice, these factors combine to produce a wide range of quotes. Always get a written estimate that itemizes parts and labor before work begins, and ask if replacing all sensors at once offers a labor-saving advantage.
Cost estimates by sensor and full set
Here are typical price ranges for MDX oxygen sensors as of 2026, broken down by part type and the all-in cost for a single sensor.
- Part price per sensor
- OEM Acura (original equipment): $120–$180
- Aftermarket (common brands like Denso or Bosch): $60–$120
- Premium aftermarket: $140–$250
- Labor to replace a single sensor
- Typical shop rate: $80–$120 per hour
- Replacement time: ~0.5–1.5 hours per sensor
- All-in installed price per sensor
- Estimated range: $100–$350 per sensor (parts + labor)
Conclusion: For a single sensor, you’ll generally pay between about $100 and $350 installed, depending on parts and labor. Replacing all four sensors at once typically runs about $400–$1,280 for parts plus labor, depending on the exact configuration and local rates.
Where to buy and save money
Choosing where to buy and having the work done can influence total costs significantly. Here are common options and what to expect from each.
- OEM Acura parts from a dealership or authorized retailer: Higher upfront cost, but guaranteed compatibility and warranty.
- Auto parts stores (in-person or online): Moderate prices, convenient availability, and frequent promotions.
- Online marketplaces and auto parts aggregators: Often the lowest listed prices, but check shipping, returns, and compatibility with your MDX year and engine type.
- Independent shops vs dealership service: Independent shops generally charge lower labor rates; dealerships may provide OEM-only service with higher labor costs.
Tip: Always verify compatibility with your MDX’s exact year and engine code, and ask for a warranty on both parts and labor. If you’re replacing multiple sensors, getting a bundled quote from a shop (parts + labor for all four) can yield savings on labor.
Summary
Oxygen sensor costs for an Acura MDX depend on how many sensors you’re replacing, the sensor type, and the part brand. Part prices typically range from $60 to $250 per sensor, with installed costs generally $100 to $350 per sensor. Replacing all four sensors usually totals about $600 to $1,400 (parts and labor), though regional rates and the choice between OEM and aftermarket parts can widen that range. Always obtain a clear, written estimate that specifies parts and labor, and consider whether replacing all sensors at once offers best value. For the most accurate quote, consult a trusted local shop or your Acura dealer with your vehicle’s year and engine details.