DENSO Oxygen Sensor: 4 Wire, Direct Fit, Heated, Wire Length: 11.77", 234-8059
In stock
$102.99
Listed as compatible with this vehicle by the retailer feed.
Check price2018 Mazda CX-9 Oxygen Sensors
4 products listed as compatible with this vehicle by the retailer feed.
NTK Switching Oxygen Sensor: 4 Wire, 27.5" Long, Heated, Direct Fit, 24642
In stock
$129.99
Listed as compatible with this vehicle by the retailer feed.
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NTK Switching Oxygen Sensor: 4 Wire, 80.75" Long, Heated, Direct Fit, 27069
In stock
$199.99
Listed as compatible with this vehicle by the retailer feed.
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DENSO Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 10.63", 234-5733
In stock
$259.99
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.