BMW Oxygen Sensor - O2 Sensors for BMW E21 320i M10 1.8L

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Every new BMW, and all BMW cars made from 1980 on, have an oxygen sensor, often called an "O2 sensor". The oxygen sensor is part of your BMW's emissions control system and feeds data to BMW engine management computer. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The goal of the oxygen sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to by simply changing your oxygen sensor today. We carry Bosch oxygen sensors, and in some cases Genuine BMW oxygen sensors or OEM oxygen sensors.
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Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench
Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench
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Schwaben - Corporate Logo
T#:368923
Part#: FO-78
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05-02-2026

$ 36.74 USD
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$ 48.99

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The Schwaben oxygen sensor wrench has a six-point pivot head to provide a secure grip on stubbornly tight oxygen sensors located in awkward, inaccessible locations.
Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"
Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"
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Bav Auto Tools - Corporate Logo
T#:580382
Part#: B8800066
Ships on Aug 10, 2026
Sale - Save 25% $ 49.99

This product was last offered at the strikethrough price on
05-03-2026

$ 37.49 USD
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$ 49.99

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Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. Fits all Oxygen sensors with 7/8in (22mm) hex.
Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6"
Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6" ...
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Bav Auto Tools - Corporate Logo
T#:580383
Part#: B8800067
Ships on Aug 10, 2026
Sale - Save 20% $ 29.99

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$ 23.99 USD
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$ 29.99

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This 1/2" Drive, 7/8" x 6" Extra Long O2 sensor tool is used to remove difficult to reach oxygen sensors.
3 Pc. OXygen Sensor Wrench Set
3 Pc. OXygen Sensor Wrench Set
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CTA Tools - Corporate Logo
T#:2393414
Part#: CTA2073
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$ 50.01 USD
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$ 50.01 USD
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Get the complete set.
Dual Drive Oxygen Sensor Wrench
Dual Drive Oxygen Sensor Wrench
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Lisle - Corporate Logo
T#:641698
Part#: LIS12390
Ships in 6 Business Days
$ 59.99 USD
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$ 59.99 USD
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Tool comes with both 1/2" and 3/8" drive.
OEM Bosch Oxygen Sensor - 11761466063 - E21 E28 E30 E24
OEM Bosch Oxygen Sensor - 11761466063 - E21 E28 E30 E24
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Bosch - Corporate Logo
T#:37575
Part#: 11761466063
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$ 67.99 USD
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Bosch OXYGEN SENSOR 11032

Fits BMW Engines including:
M10,M20,M30
 

1980+ E21 BMW 320i M10 1.8L
Up to 03/1987 E28 BMW 528e M20 2.7L
E28 BMW 533i M30 3.2L
up to 12/1984 E30 BMW 318i M10 1.8L
09/1981+ E24 BMW M30 3.2L

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Bosch Oxygen Sensor - Front Position
Bosch Oxygen Sensor - Front Position
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591271
Part#: 11761277565
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$ 90.99 USD
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$ 90.99 USD
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Oxygen Sensor Thread Chaser
Oxygen Sensor Thread Chaser
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CTA Tools - Corporate Logo
T#:3729697
Part#: CTA2068
In Stock
$ 11.41 USD
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$ 11.41 USD
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Remove rust and dirt for easy installation with this tool
Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm
Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm
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Turner Motorsport - Corporate Logo
T#:587345
Part#: TMS02BUNGKT
In Stock
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This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD
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$ 3.99

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Finish your custom exhaust with this T304 stainless steel weld-in oxygen sensor bung. PART DESIGN CNC-cut from T304 Stainless Steel for corrosion resistance Radiused to match 2.50"-3.00" OD tubing for ease of welding Threaded for M18x1.5mm RH oxygen sensors INSTALLATION AND SUPPORT These are universal parts, meaning they have no direct fitment to any particular vehicle. Custom welding and fabrication is required. Special prep/clean procedures must be adhered to for proper welding.
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Thin Wall Oxygen Sensor Socket
Thin Wall Oxygen Sensor Socket
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CTA Tools - Corporate Logo
T#:640932
Part#: CTA2064
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$ 17.85 USD
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$ 17.85 USD
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Out of space? Use this thin wall socket.
Oxygen Sensor Socket - 22mm
Oxygen Sensor Socket - 22mm
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Hazet - Corporate Logo
T#:6181663
Part#: 4680-1
Ships in 1 Business Day
$ 118.99

This product was last offered at the strikethrough price on
05-07-2026

$ 115.99 USD
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$ 115.99 USD
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Properly remove stubborn o2 sensors.
Denso Oxygen Sensor - E21, E28, E30
Denso Oxygen Sensor - E21, E28, E30
Up to production date 3/1987
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Denso - Corporate Logo
T#:369420
Part#: 11761466063
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$ 49.99 USD
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Restore MPG, Clear Check Engine Lights.
Offset Oxygen Sensor Wrench- Extended
Offset Oxygen Sensor Wrench- Extended
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CTA Tools - Corporate Logo
T#:640929
Part#: CTA2065
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$ 19.99 USD
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$ 19.99 USD
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Extra length is needed sometimes

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