Mazda 3 Oxygen Sensor

Replacement oxygen sensor — fitment, symptoms & live UK prices.

Fits Mazda 3 — check your reg/VIN to confirm
Mazda 3 Oxygen Sensor on eBay

From £11.88 · 6 live listings on eBay

View Oxygen Sensor on eBay
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O2 Lambda Oxygen Sensor 3921002640 For Hyundai Kia Landrover Lancia Mazda
O2 Lambda Oxygen Sensor 3921002640 For Hyundai Kia Landrover Lancia Mazda
New99.8% positive
£11.88View ›
Lambda Oxygen Sensor Front For Mazda 3 (2004-2009) 1.4 1.6
Lambda Oxygen Sensor Front For Mazda 3 (2004-2009) 1.4 1.6
New99.7% positive
£18.93View ›
FITS MAZDA 3 (2004-2009) 1.4 1.6 LAMBDA OXYGEN SENSOR FRONT
FITS MAZDA 3 (2004-2009) 1.4 1.6 LAMBDA OXYGEN SENSOR FRONT
New99.6% positive
£19.95View ›
Lambda Oxygen Sensor Front For Mazda 3 (2004-2009) 1.4 1.6
Lambda Oxygen Sensor Front For Mazda 3 (2004-2009) 1.4 1.6
New99.6% positive
£19.95View ›
Premier Fits Mazda 3 (2004-2009) 1.4 1.6 Lambda Oxygen Sensor Front
Premier Fits Mazda 3 (2004-2009) 1.4 1.6 Lambda Oxygen Sensor Front
New99.6% positive
£21.95View ›
Stallex Lambda Oxygen Sensor Front For Mazda 323 MX-5 MX-3 1.3 1.6 1.8
Stallex Lambda Oxygen Sensor Front For Mazda 323 MX-5 MX-3 1.3 1.6 1.8
New99.5% positive
£21.95View ›

Will it fit my Mazda 3?

Pre-cat (upstream) and post-cat (downstream) sensors are different parts — check which one your fault code points to, and how many your engine has.

Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.

Signs your Mazda 3 oxygen sensor needs replacing

Fitting it yourself

Usually a single plug and a thread into the exhaust — quick if it's not seized. Penetrating oil helps on an old sensor.

See Oxygen Sensor prices on eBay

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Live pricesFrom £11.88
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