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O2 sensor

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4pcs upstream downstream - 4pcs, o2

4pcs upstream downstream - 4pcs, o2

$34.66
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Denso 234 4517 downstream - 234-4517,

Denso 234 4517 downstream - 234-4517,

$48.99
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234 4351 denso - 234-4351, o2

234 4351 denso - 234-4351, o2

$58.59
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Denso 234 9051 4260 down - denso, 234-9051/4260

Denso 234 9051 4260 down - denso, 234-9051/4260

$169.95
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Brand oem upstream - 4x,

Brand oem upstream - 4x,

$36.70
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Set 4pcs oxygen sensor - set,

Set 4pcs oxygen sensor - set,

$52.18
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Brand oem upstream - 2x,

Brand oem upstream - 2x,

$18.85
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4pcs oxygen sensors - sensors, oem

4pcs oxygen sensors - sensors, oem

$38.74
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Set ntk oxygen - ntk,

Set ntk oxygen - ntk,

$89.50
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4pcs brand oem upstream - 4pcs,

4pcs brand oem upstream - 4pcs,

$34.66
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Set motorcraft oxygen o2 - set,

Set motorcraft oxygen o2 - set,

$36.00
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Oem downstream oxygen - &,

Oem downstream oxygen - &,

$30.58
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Denso 234 9049 upstream oxygen - denso, 234-9049

Denso 234 9049 upstream oxygen - denso, 234-9049

$41.99
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Upstream downstream oxygen - 2x, upstream&downstream

Upstream downstream oxygen - 2x, upstream&downstream

$54.99
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2pcs downstream oxygen o2 - 2pcs,

2pcs downstream oxygen o2 - 2pcs,

$49.99
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2pcs oxygen sensor - 2pcs,

2pcs oxygen sensor - 2pcs,

$23.04
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Downstream oxygen sensor - downstream,

Downstream oxygen sensor - downstream,

$54.96
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Oem upstream downstream - 2x,

Oem upstream downstream - 2x,

$51.99
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Set delco oxygen o2 - ac,

Set delco oxygen o2 - ac,

$89.95
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2pcs oem upstream - oem,

2pcs oem upstream - oem,

$20.89
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234 4001 oem - 234-4001, downstream

234 4001 oem - 234-4001, downstream

$30.58
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Upstream downstream 02 - 2x, upstream+downstream

Upstream downstream 02 - 2x, upstream+downstream

$29.96
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4pcs brand oem - oem, o2

4pcs brand oem - oem, o2

$31.60
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2pcs oxygen sensor upstream - o2,

2pcs oxygen sensor upstream - o2,

$22.19
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2pcs oxygen sensor - 2pcs,

2pcs oxygen sensor - 2pcs,

$35.34
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Upstream downstream o2 - 4,

Upstream downstream o2 - 4,

$48.94
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Premium upstream - 2x, &

Premium upstream - 2x, &

$56.99
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Oem oxygen sensor for - oxygen,

Oem oxygen sensor for - oxygen,

$31.99
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Upstream denso oxygen - denso, o2

Upstream denso oxygen - denso, o2

$41.99
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4pcs brand oem - oem, downstream

4pcs brand oem - oem, downstream

$61.18
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4pcs oxygen sensor up - o2,

4pcs oxygen sensor up - o2,

$57.57
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Denso downstream oxygen - denso,

Denso downstream oxygen - denso,

$35.58
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2pc oxygen sensor down - oxygen, up+down

2pc oxygen sensor down - oxygen, up+down

$22.91
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2pcs oxygen sensor for - sensor,

2pcs oxygen sensor for - sensor,

$42.98
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Denso downstream front - front, o2

Denso downstream front - front, o2

$37.79
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Bosch 0258017025 lsu4 o2 - 0258017025, lsu4.9

Bosch 0258017025 lsu4 o2 - 0258017025, lsu4.9

$25.00
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4pcs oxygen sensor - ✅4pcs, o2

4pcs oxygen sensor - ✅4pcs, o2

$39.75
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Oxygen o2 sensor - 02,

Oxygen o2 sensor - 02,

$29.85
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2pcs sensor downstream - o2,

2pcs sensor downstream - o2,

$48.99
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2pcs upstream downstream 02 - upstream, &

2pcs upstream downstream 02 - upstream, &

$34.24
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Bosch wideband sensors - wideband, up

Bosch wideband sensors - wideband, up

$220.00
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Denso 234 4574 oxygen - denso, o2

Denso 234 4574 oxygen - denso, o2

$39.89
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Upstream downstream - &,

Upstream downstream - &,

$19.05
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Oem 36531 rca - oem, upstream

Oem 36531 rca - oem, upstream

$37.99
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Genuine motorcraft oxygen - genuine,

Genuine motorcraft oxygen - genuine,

$37.79
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Set ntk oxygen o2 sensor - set, 4

Set ntk oxygen o2 sensor - set, 4

$89.50
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New oxygen sensor - new,

New oxygen sensor - new,

$32.80
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Brand oem upstream - brand, 2x

Brand oem upstream - brand, 2x

$29.56
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Oem upstream downstream - upstream, &

Oem upstream downstream - upstream, &

$36.87
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Denso 234 9040 oxygen - 234-9040,

Denso 234 9040 oxygen - 234-9040,

$46.45
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Downstream sensor denso - o2, sensor-oe

Downstream sensor denso - o2, sensor-oe

$35.70
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Brand oem upstream - oem, &

Brand oem upstream - oem, &

$39.76
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Brand oem upstream - 4x,

Brand oem upstream - 4x,

$48.94
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Denso 234 9064 upstream - denso,

Denso 234 9064 upstream - denso,

$44.37
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Down oxygen o2 - oxygen,

Down oxygen o2 - oxygen,

$43.82
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Set new oxygen o2 sensor - of, 4

Set new oxygen o2 sensor - of, 4

$52.32
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4pcs oem upstream downstream - 4pcs,

4pcs oem upstream downstream - 4pcs,

$48.94
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2pcs upstream oxygen sensor - upstream,

2pcs upstream oxygen sensor - upstream,

$39.59
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2pcs downstream front rear - 2pcs, &

2pcs downstream front rear - 2pcs, &

$28.54
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New 4pcs oxygen sensor fits - 4pcs,

New 4pcs oxygen sensor fits - 4pcs,

$36.70
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Oem 2pcs downstream oxygen - 2pcs, up+downstream

Oem 2pcs downstream oxygen - 2pcs, up+downstream

$21.86
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Downstream o2 oxygen - 4x, up/downstream

Downstream o2 oxygen - 4x, up/downstream

$56.05
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Oem upstream downstream - oem, +

Oem upstream downstream - oem, +

$34.66
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For toyota tundra 2003 - 2003, v8

For toyota tundra 2003 - 2003, v8

$35.69
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4pcs downstream oxygen o2 - up+downstream,

4pcs downstream oxygen o2 - up+downstream,

$44.74
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4pcs for 2011 2014 - 4pcs, ford

4pcs for 2011 2014 - 4pcs, ford

$58.78
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2pcs upstream down - 2pcs, +

2pcs upstream down - 2pcs, +

$27.99
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Set new oxygen - oxygen, sensor

Set new oxygen - oxygen, sensor

$51.76
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4pcs brand oem - up, &

4pcs brand oem - up, &

$31.60
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4pcs brand oem upstream - brand, &

4pcs brand oem upstream - brand, &

$64.75
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Lsu4 uego wideband bosch - lsu4.9,

Lsu4 uego wideband bosch - lsu4.9,

$36.98
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Brand oem upstream - brand,

Brand oem upstream - brand,

$32.11
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4pcs downstream oxygen o2 - 4pcs,

4pcs downstream oxygen o2 - 4pcs,

$40.99
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4pcs oxygen sensor - 4pcs,

4pcs oxygen sensor - 4pcs,

$74.35
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Oxygen sensor for - 2x,

Oxygen sensor for - 2x,

$30.78
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Brand oem upstream - 2x,

Brand oem upstream - 2x,

$38.74
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Genuine motorcraft oxygen - oxygen, o2

Genuine motorcraft oxygen - oxygen, o2

$37.79
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Upstream downstream - ✅2, upstream+downstream

Upstream downstream - ✅2, upstream+downstream

$19.36
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2pcs oxygen sensor - 2pcs,

2pcs oxygen sensor - 2pcs,

$36.47
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Honda oem 2pcs upstream - oem, &

Honda oem 2pcs upstream - oem, &

$48.99
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2pcs oem upstream - oem, &

2pcs oem upstream - oem, &

$19.87
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Downstream denso oxygen - downstream, o2

Downstream denso oxygen - downstream, o2

$40.45
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2pcs upstream downstream - &,

2pcs upstream downstream - &,

$71.25
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Denso 234 9304 downstream - denso, 234-9304

Denso 234 9304 downstream - denso, 234-9304

$53.77
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4pcs air fuel ratio - 4pcs,

4pcs air fuel ratio - 4pcs,

$79.98
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Brand oem downstream - brand, up

Brand oem downstream - brand, up

$63.22
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Oxygen sensor upstream - oxygen,

Oxygen sensor upstream - oxygen,

$20.99
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2pcs oxygen sensor upstream - o2,

2pcs oxygen sensor upstream - o2,

$31.34
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1pcs oxygen sensor - sensor, for

1pcs oxygen sensor - sensor, for

$28.00
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Oxygen sensor upstream - sensor,

Oxygen sensor upstream - sensor,

$48.46
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Denso downstream oxygen - denso, o2

Denso downstream oxygen - denso, o2

$34.46
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2pcs oxygen sensor for - 2pcs,

2pcs oxygen sensor for - 2pcs,

$36.82
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4pcs for 2008 2012 - for, 2008-2012

4pcs for 2008 2012 - for, 2008-2012

$62.99
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Pair oxygen sensors for - oxygen, o2

Pair oxygen sensors for - oxygen, o2

$34.99
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Upstream downstream oxygen - 4x,

Upstream downstream oxygen - 4x,

$48.94
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Oem new downstream rear oxygen - downstream,

Oem new downstream rear oxygen - downstream,

$55.88
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📊96 listings · from $18.85 · avg $45.49

Browse 96 o2 sensor listings currently in our index. Prices range from $18.85 to $220, with an average of $45.49. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about o2 sensor →

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Everything you need to know about o2 sensor

Whether you are looking for a brand-new or second-hand o2 sensor, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $18.85, while premium listings can reach $220 — giving you a wide budget spread to work with. The average price of $45.49 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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