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BMW Oxygen Sensor - O2 Sensors for BMW 5 Series E39 (1996-2003)

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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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Walker Oxygen Sensor - E36, E39, Z3

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T#:1195903

Part#: 11781427884

In Stock at Vendor

$ 167.99

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04-13-2026

$ 142.99 USD

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$ 142.99 USD

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If your engine is tossing you an oxygen sensor check engine light, replace it with this unit from Bosch. The O2 sensor measures the amount of unburned fuel in the exhaust pipe to adjust fuel mapping for less emissions and better fuel economy. When malfunctioning, your MPG and performance can suffer. Replaced fairly easily, you can restore your performance and mileage quickly. Put some anti seize on the threads to prevent it from becoming a permanent part of the exhaust. Regularly scheduled maintenance as these tend to fail slowly.

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OEM Bosch Oxygen Sensor - mounts before catalytic converter - E46 E39...

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T#:2998

Part#: 11781742050

In Stock

$ 96.08

This product was last offered at the strikethrough price on
05-29-2026

$ 90.99 USD

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$ 90.99 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8

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Schwaben 7/8"(22mm) Flexible Oxygen Sensor Wrench

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T#:368923

Part#: FO-78

In Stock

Sale - Save 25% $ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD

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$ 48.99

This product was last offered at the strikethrough price on
05-02-2026

$ 36.74 USD

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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.

Bosch Oxygen Sensor - mounts after catalytic converter - E46 E39 X3 X...

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T#:2118

Part#: 11781433940

In Stock at Vendor

$ 147.99

This product was last offered at the strikethrough price on
06-12-2026

$ 122.99 USD

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This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. Bosch # 15 109.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi
2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine
1999-2003 E39 BMW 528i 525i 530i
2004-2006 E83 BMW X3 2.5 - Bank 1 Only
2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Oxygen Sensor - Priced Each

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T#:35863157

Part#: 11781742050

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$ 49.99 USD

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This direct fit oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8

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Bav Auto Oxygen Sensor Tool - Angled Handle - 7/8"

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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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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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Slotted, pivoting head has both hexagon and double hexagon drive. Angled handle reaches around obstructions. Fits all Oxygen sensors with 7/8in (22mm) hex.

OEM Pierburg Oxygen Sensor - BMW M52 S52

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T#:47164963

Part#: 11781427884

In Stock

$ 283.99

This product was last offered at the strikethrough price on
01-05-2026

$ 210.20 USD

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$ 210.20 USD

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A new oxygen sensor set can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensors provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary. Sold separately, but four sensors are required. Fits E36 front and rear, M Roadster / Coupe front to 2000. Bosch Part # 13 884. Also replaces 11781437943. This item fits the following BMWs: 1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3 1997-1998 E39 BMW 528i 1998-2002 Z3 BMW Z3 M Roadster M coupe

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Bav Auto Extra Long Oxygen Sensor Tool - 1/2" Drive, 7/8" x 6" ...

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T#:580383

Part#: B8800067

Ships on Aug 10, 2026

Sale - Save 20% $ 29.99

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

$ 23.99 USD

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Sale - Save 20%

$ 29.99

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

$ 23.99 USD

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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

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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.

OEM Bosch Oxygen Sensor - mounts after catalytic converter - E39 540i...

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T#:12647

Part#: 11781742051

In Stock at Vendor

$ 128.99 USD

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$ 128.99 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the post-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Bosch # 13475.

This item fits the following BMWs:
1997-2003 E39 BMW 540i M5
1996-2001 E38 BMW 740i 740il 750il

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Oxygen Sensor - Priced Each - E36 / E39

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T#:367739

Part#: 11781437943

Ships in 2 Business Days

7% off MSRP $ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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7% off MSRP

$ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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Upgrade Your Engine with an Efficient O2 Sensor Replacement

If your engine is triggering an oxygen sensor check engine light, it's time to consider a replacement with this high-performance unit. The O2 sensor is a critical component that measures unburned fuel in the exhaust pipe, enabling precise fuel mapping adjustments for reduced emissions and improved fuel economy.

When the O2 sensor malfunctions, your vehicle's MPG and overall performance can suffer. The good news is that replacing this unit is a straightforward process that can quickly restore your engine's performance and mileage. To ensure easy removal in the future, apply some anti-seize on the threads.

Regular, scheduled maintenance should include the O2 sensor replacement, as these sensors have a tendency to degrade slowly over time.

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Bosch Oxygen Sensor - Mounts Before Catalytic - E36 Z3 M44, E31, E38,...

For vehicles with production date up to 09/1998

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T#:13046

Part#: 11781247406

Ships on Dec 24, 2026

$ 83.99 USD

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$ 83.99 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Bosch part number 13559.

This is the pre-catalytic converter oxygen sensor

This item fits the following BMWs:
1996-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1998 Z3 BMW Z3 1.9

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Dual Drive Oxygen Sensor Wrench

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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.

Genuine BMW Oxygen Sensor

For vehicles with production date up to 4/1998. 2 used in the exhaust manifold, 2 locat...

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T#:367737

Part#: 11781427884

Ships in 2 Business Days

7% off MSRP $ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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7% off MSRP

$ 445.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 415.99 USD

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Oxygen Sensor Thread Chaser

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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

Thin Wall Oxygen Sensor Socket

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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.

Stainless Steel Weld-In Oxygen Sensor Bung - M18x1.5mm

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T#:587345

Part#: TMS02BUNGKT

In Stock

Sale - Save 25% $ 3.99

This product was last offered at the strikethrough price on
06-14-2026

$ 2.99 USD

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Sale - Save 25%

$ 3.99

This product was last offered at the strikethrough price on
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$ 2.99 USD

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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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Oxygen Sensor Socket - 22mm

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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.

Oxygen Sensor - Priced Each

For vehicles with production date up to 09/1998

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T#:367733

Part#: 11781247406

Ships in 2 Business Days

7% off MSRP $ 404.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 377.99 USD

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7% off MSRP

$ 404.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 377.99 USD

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Meyle Oxygen Sensor - Post-Cat - E46 E39 X3 X5 Z3 Z4

For vehicles with production date from 09/1998

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T#:5944219

Part#: 11781433940

Special Order: No Guaranteed ETA

$ 78.99 USD

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$ 78.99 USD

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This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. This item fits the following BMWs: 1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi 2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine 1999-2003 E39 BMW 528i 525i 530i 2004-2006 E83 BMW X3 2.5 - Bank 1 Only 2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only 2000-2006 E53 BMW X5 3.0i 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Oxygen Sensor - Priced Each

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T#:22064620

Part#: 11781247406

Special Order: No Guaranteed ETA

$ 55.99 USD

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$ 55.99 USD

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Meyle Oxygen Sensor - Pre-Cat - E36 Z3 M44, E31, E38, E39 M62 (97-98)...

For vehicles with production date up to 09/1998

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T#:5944214

Part#: 11781247406

Special Order: No Guaranteed ETA

$ 57.99 USD

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$ 57.99 USD

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This direct-fit Meyle oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing is required. A new oxygen sensor can improve driveability and lengthen engine life. This is the pre-catalytic converter oxygen sensor

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Offset Oxygen Sensor Wrench- Extended

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T#:640929

Part#: CTA2065

Back Ordered

$ 19.99 USD

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$ 19.99 USD

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Extra length is needed sometimes

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