BMW Electrical Sensors, Switches, & Relays for BMW Z3 (1996-2002)

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Electrical gremlins can be very frustrating. Luckily your BMW's electrical system is better than most, even if it's 25 years old. Here you will find electrical relays, sensors, switches, and modules for the engine, camshaft, and crankshaft. Our parts are OEM, Genuine BMW, or approved aftermarket brands that we have an excellent track record with. There is no middle ground with electrical parts - it either works perfectly or not. And there's nothing more frustrating than a new part that fails right out of the box. So it's important to choose quality replacement parts over a cheap but faulty piece.

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OEM VDO Camshaft Reference Sensor -- M52/S52
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Continental - Corporate Logo
T#:1110
Part#: 12141703221
In Stock
$ 67.99 USD
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$ 67.99 USD
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This is a common failure item which can cause a check engine light, and rough engine running on the M52/S52 engines (328, M3, 528 thru 98, Z3 2.8, & M Roadster/Coupe thru 2000). If you have received an engine fault code suggesting "cam shaft reference sensor" or similar, this is most likely the cuprit. Once replaced, you will need to clear the fault code. We recommend replacing the cam position sensor o-ring at the same time.

OEM VDO is one of the largest OE providers in the world, supplying numerous vehicle brands, including BMW, with many of their genuine parts that build the vehicle before they ever reach the car lot. Entrusted by many of the top names in automotives and with their proven history of reliability, it makes all of us here at Turner confident that their line of OEM replacement parts are a perfect option to restore your vehicles original operation and performance. The same great quality or higher than Genuine BMW parts at a lower cost.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform

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Oil Level Sensor - E46 E39 E60 E38 X3 X5 Z3 Z4 Z8
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Bremmen Parts - Corporate Logo
T#:395203
Part#: 12617508003
In Stock
Sale - Save 15% $ 62.99

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

$ 53.54 USD
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Sale - Save 15%
$ 62.99

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

$ 53.54 USD
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This is the oil level sensor / sender for BMW E46 E39 E60 E38 X3 X5 Z3 Z4 Z8.When this part fails it will illuminate a check light on the dash which indicates it needs to be replaced. Includes o-ring. This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi M3 2008+ E90 BMW 335d 1999-2003 E39 BMW 528i 525i 530i M5 1998-2003 E39 BMW 540i 2004-2005 E60 BMW 525i 530i 1998-2001 E38 BMW 740i 740il 750il 2004-2006 E85 BMW X3 2.5i X3 3.0i 2000-2006 E53 BMW X5 3.0i 2000-2003 E53 BMW X5 4.4i X5 4.6is 1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i 2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe 2003-2006 Z4 BMW Z4 2.5i Z4 3.0i 2000-2003 E52 BMW Z8
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Main / ECU Relay - White - E30 E36 E39 E38 X5
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Genuine BMW - Corporate Logo
T#:10642
Part#: 61361729004
In Stock
4% off MSRP $ 25.01

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

$ 23.99 USD
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4% off MSRP
$ 25.01

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

$ 23.99 USD
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This is a Genuine BMW main relay for a variety of BMW models. The main relay powers vital systems in the car when the key is turned to the Start position. Things like the ECU and fuel pump require power from the main relay before they can work. The main relay is constantly powered so checking for power is easy with a test light. It should also make a 'click' sound when the ignition switch is turned. Note: relays look similar but can perform different functions, and electrical parts are non-returnable, so make sure you confirm this is the relay you need.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Genuine BMW 5 Prong Salmon Relay - Multiple BMWs
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Genuine BMW - Corporate Logo
T#:5390
Part#: 12631742690
In Stock
7% off MSRP $ 24.65

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

$ 22.99 USD
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7% off MSRP
$ 24.65

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

$ 22.99 USD
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This relay is used for the SMG system on the E46 M3 and various applications including secondary air systems on other BMW's. If you find that your SMG-equipped E46 M3 is not starting, this is one of the first places to check as it controls power to the hydraulic unit (the car will not start without hydraulics). Buy one to fix the issue and buy a second so you're not stranded in the future!
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Genuine BMW White Green Relay - Multiple BMWs
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Genuine BMW - Corporate Logo
T#:11798
Part#: 61368373700
In Stock
4% off MSRP $ 24.65

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

$ 23.59 USD
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4% off MSRP
$ 24.65

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

$ 23.59 USD
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This relay is often the fuel pump relay for many BMW models. To ensure the relay is correct for your car please check the pin locations.
Genuine BMW Temperature Sensor
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Genuine BMW - Corporate Logo
T#:367843
Part#: 13621433076
In Stock
16% off MSRP $ 66.05

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

$ 55.45 USD
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16% off MSRP
$ 66.05

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

$ 55.45 USD
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Genuine BMW Oil Pressure Switch - M12x1.5
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Genuine BMW - Corporate Logo
T#:183226
Part#: 12618611273
In Stock
17% off MSRP $ 34.59

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

$ 28.79 USD
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17% off MSRP
$ 34.59

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

$ 28.79 USD
Free Shipping on orders $49 and up


Genuine BMW Oil Pressure Switch - M12X1,5
This item fits the following BMW Chassis:
E39 M5,E46 M3,E82 1M Coupe,E85 Z4M,E53 48IS,E36,E38,E39,E46,E53 X5,E63,E65,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F25 X3,F30,F31,i3

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OEM Starter Motor - E46 M3 2001-2006
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Valeo - Corporate Logo
T#:2988
Part#: 12417835735
In Stock
$ 400.99

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

$ 293.99 USD
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$ 293.99 USD
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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
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Bremmen Crankshaft Position Sensor - E36 E46 E39 E60 X3 X5 Z3 Z4 ...
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Bremmen Parts - Corporate Logo
T#:640146
Part#: 12141709616
In Stock
Sale - Save 11% $ 39.99

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

$ 35.79 USD
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Sale - Save 11%
$ 39.99

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

$ 35.79 USD
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This is the crank shaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Bremmen sensor to restore peak performance.
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OEM Bosch Voltage Regulator (90amp/120amp) -- E46 E39 E53 Z3 ...
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Bosch - Corporate Logo
T#:373840
Part#: 12317559183
In Stock
$ 37.99

This product was last offered at the strikethrough price on
04-13-2026

$ 37.36 USD
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$ 37.36 USD
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Ensure the correct voltage is being sent to/from the alternator, keep you electrical system safe from excessive voltage peaks that could cause damage to sensitive electronics and blow out fuses. Bosch's high quality unit will give you peace of mind knowing the electrical system will be safe and the voltage will remain steady. OEM replacement for BMW part # 12317559183 and 12317501752.

Cars that have oval or D shaped connector use BMW part # 12317515319

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Hella Crankshaft Position Sensor - E36, E39, E46, E53, E60, E83, Z3, ...
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Hella - Corporate Logo
T#:388896
Part#: 12141709616
In Stock
$ 40.99 USD
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Faulty crankshaft position sensors can cause issues with proper ignition timing and adjustment leading to rough idle, stalling, and potential engine damage. A high quality OEM Hella replacement will have your BMW running smoothly for much less than the cost of a Genuine BMW sensor.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Fits BMW models with the following engines: M52 S52 M54 M56

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Camshaft Position Sensor - E46 M3, Z4M, Z3M S54
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Bremmen Parts - Corporate Logo
T#:36913379
Part#: 12147539171
Ships on Aug 10, 2026
Sale - Save 20% $ 89.99

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

$ 71.80 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 89.99

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

$ 71.80 USD
Free Shipping on orders $49 and up

The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance.

Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.

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OEM Oil Level Sensor - E46 E39 E60 E38 X3 X5 Z3 Z4 Z8
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Hella - Corporate Logo
T#:2123
Part#: 12617508003
Back Ordered
$ 82.89 USD
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$ 82.89 USD
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This is the oil level sensor / sender for BMW E46 E39 E60 E38 X3 X5 Z3 Z4 Z8.When this part fails it will illuminate a check light on the dash which indicates it needs to be replaced. Includes o-ring.Manufactured by Hella.

Hella is a premium manufacturer that supplies automotive lighting products for numerous car brands around the world. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW bright and visible for many years to come.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi M3
2008+ E90 BMW 335d
1999-2003 E39 BMW 528i 525i 530i M5
1998-2003 E39 BMW 540i
2004-2005 E60 BMW 525i 530i
1998-2001 E38 BMW 740i 740il 750il
2004-2006 E85 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i X5 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2003-2006 Z4 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8
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OEM Bosch Alternator - E46 M3, Z3 S54
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Bosch - Corporate Logo
T#:370775
Part#: 12317831436
In Stock
$ 512.99

This product was last offered at the strikethrough price on
03-30-2026

$ 322.99 USD
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$ 322.99 USD
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A replacement Bosch alternator for the 2001-2006 M3. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. The Original BMW alternator sells for over double! Buy only the best alternator for your BMW -- buy a Bosch alternator. This is an OEM replacement for BMW part # 12317831436.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

A $80.00 refundable core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge. 

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible
2001-2002 Z3 BMW M Roadster M Coupe

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BMW M52 Engine Crankshaft Position Sensor
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Delphi - Corporate Logo
T#:373958
Part#: 12141709616
In Stock
$ 97.99

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

$ 94.99 USD
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$ 94.99 USD
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OEM Bosch Alternator AL0703N - 120A - E38 E39 E46 E53 Z3
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Bosch - Corporate Logo
T#:583735
Part#: 12317501690
In Stock
$ 526.99

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

$ 415.99 USD
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$ 415.99 USD
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If your car has died on the side of the road from a dead battery and you notice flickering or low powered headlights, it's likely your alternator failing. To be sure you are getting a high-quality part with a long life-span, choose this OEM Bosch Alternator. This is a brand new OEM replacement for BMW part # 12317501690.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Genuine BMW Battery Hold Down - Multiple BMWs
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Genuine BMW - Corporate Logo
T#:186551
Part#: 61217631587
In Stock
$ 25.88 USD
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$ 25.88 USD
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The hold down bracket secures the battery in the battery tray to keep it from sliding around.
Febi Camshaft Position Sensor - Intake - E39 E46 E53 E60 E83 Z3 Z4 ...
Includes o-ring.
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Febi - Corporate Logo
T#:591868
Part#: 12147539165
In Stock
$ 31.99 USD
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$ 31.99 USD
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DSC Pressure Sensor
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URO - Corporate Logo
T#:567281
Part#: 34521164458
Ships in 1 Business Day
$ 152.99 USD
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$ 152.99 USD
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This sensor is attached to the brake master cylinder
Genuine BMW Ground Cable
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Genuine BMW - Corporate Logo
T#:39357
Part#: 12421737755
In Stock
5% off MSRP $ 42.99

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

$ 40.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 42.99

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

$ 40.99 USD
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Genuine BMW Ground Cable - L=380Mm
This item fits the following BMW Chassis:
E36 M3,E46 M3,E85 Z4M,E30,E34,E36,E38,E39,E46,E85 Z4,E86 Z4


Meyle Crankshaft Position Sensor - E36, E39, E46, E53, E60, E83, Z3, ...
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Meyle - Corporate Logo
T#:369703
Part#: 12141709616
In Stock
$ 47.37

This product was last offered at the strikethrough price on
12-29-2025

$ 46.99 USD
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$ 46.99 USD
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Does not include O-ring

Camshaft Position Sensor - S54, S62
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URO - Corporate Logo
T#:44461483
Part#: 13627796054
In Stock
$ 40.99 USD
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Provides dependable performance, reliability, and value in one essential component.
Camshaft Position Sensor - Intake
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Bremi - Corporate Logo
T#:34683819
Part#: 12147539165
In Stock
$ 113.99

This product was last offered at the strikethrough price on
12-15-2025

$ 48.99 USD
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$ 48.99 USD
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Bremi Camshaft Position Sensor - Intake is an essential component for optimizing your BMW’s engine timing and performance. Manufactured by Bremi and available through Turner Motorsport, this high-quality intake camshaft position sensor precisely monitors the camshaft’s rotation and communicates critical data to the engine control unit. By ensuring accurate timing for the intake valves, this sensor helps maintain optimal fuel efficiency, smooth idling, and reduces emissions. Replacing a faulty camshaft position sensor can prevent common engine issues such as misfires, stalling, or rough idling.

The Bremi Camshaft Position Sensor - Intake meets OEM specifications, providing a reliable, durable solution that’s designed to withstand high temperatures and vibration for long-lasting performance.

Benefits:

Improves Engine Timing: Provides precise timing data for smooth, responsive engine performance Enhances Fuel Efficiency: Optimizes fuel use, saving on fuel costs and reducing environmental impact Reduces Emissions: Helps maintain cleaner combustion and lowers vehicle emissions Prevents Engine Issues: Minimizes risk of misfires, rough idling, and stalling, prolonging engine life Easy to Install: Direct fit for BMW models, making replacement quick and hassle-free Bremi Camshaft Position Sensor - Intake is the perfect choice to maintain your BMW’s high performance and reliability.

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Comfort Relay - Blue - 5 Prong - E36, E38, Z3
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Genuine BMW - Corporate Logo
T#:11920
Part#: 61358364690
Ships in 1 day
5% off MSRP $ 115.99

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

$ 109.99 USD
Free Shipping
5% off MSRP
$ 115.99

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

$ 109.99 USD
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When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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FAE Exhaust Camshaft Position Sensor
Sensor for the exhaust camshaft
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FAE - Corporate Logo
T#:1196088
Part#: 13627796054
Ships in 1 Business Day
$ 74.99 USD
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$ 74.99 USD
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Located on rear of the cylinder head, sensing the exhaust cam
Genuine BMW Relay In Zinc Yellow - 61361389105 - E34,E36,E46,E83 ...
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Genuine BMW - Corporate Logo
T#:10639
Part#: 61361389105
In Stock
4% off MSRP $ 22.99

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

$ 21.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 22.99

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

$ 21.99 USD
Free Shipping on orders $49 and up

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.


Genuine BMW Relay In Zinc Yellow
This item fits the following BMW Chassis:
E36 M3,E34 M5,E46 M3,E34,E36,E46,E83 X3
 

 

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Camshaft Position Sensor, Intake Camshaft 12147539165
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Genuine BMW - Corporate Logo
T#:12480
Part#: 12147539165
In Stock
9% off MSRP $ 228.86

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

$ 208.24 USD
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9% off MSRP
$ 228.86

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

$ 208.24 USD
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Located on the intake side of the cylinder head, this sensor relays the position of the camshaft to the computer in order to determine proper ignition timing. When this sensor fails the engine will generally log a fault code and may place the vehicle into "limp" mode. When this happens it is advised to stop driving the vehicle and address the issue immediately as premature wear or long term damage to the engine is possible.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

OE BMW reference number: 12147539165
 

We also carry a this sensor with the required o ring Here

This part fits the following BMWs:
1998 - 2004 E39 Touring 525i 528i 
1996 - 2004 E39 Sedan 525i 528i 530i  
1999 - 2006 E46  323i 323ci 325i 325ci 325xi 328i 328ci 328xi 330i 330ci 330xi 

 

 

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Genuine BMW Camshaft Position Sensor
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Genuine BMW - Corporate Logo
T#:348239
Part#: 12147518628
In Stock
17% off MSRP $ 166.83

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

$ 138.98 USD
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17% off MSRP
$ 166.83

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

$ 138.98 USD
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Battery Hold Down - E60, E61, E63, E64, E82, E90, E91, E92, Z3 ...
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Genuine BMW - Corporate Logo
T#:141373
Part#: 61217566618
Ships in 1 day
4% off MSRP $ 47.99

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

$ 45.99 USD
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4% off MSRP
$ 47.99

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

$ 45.99 USD
Free Shipping on orders $49 and up


Genuine BMW Battery Hold Down
This item fits the following BMW Chassis:
E60 M5,E63 M6,E82 1M Coupe,E63,E82,E90,E92

Bosch Remanufactured Starter - E46 M3, S54
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Bosch - Corporate Logo
T#:373451
Part#: 12417835735KTBOS
Ships in 6 Business Days
$ 366.99 USD
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$ 366.99 USD
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This starter offers reliable performance at a fraction of the cost of a new unit, providing peace of mind and ensuring your BMW starts smoothly every time. This remanufactured starter from Bosch will allow your car to start like it is new. Includes $70 core charge. 
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Genuine BMW Positive Battery Terminal Cover - E36, Z3
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Genuine BMW - Corporate Logo
T#:7151
Part#: 12421730712
In Stock
5% off MSRP $ 21.99

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

$ 20.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 21.99

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

$ 20.99 USD
Free Shipping on orders $49 and up


Genuine BMW Cover
This item fits the following BMW Chassis:
E36 M3,E36

Fits BMW Engines including:
M42,M44,M50,M52,S50,S52

Genuine BMW Socket repair kit
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Genuine BMW - Corporate Logo
T#:207094
Part#: 61132359996
In Stock
$ 29.99 USD
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Genuine BMW Rep. Kit For Socket Housing - 4 Pol.
This item fits the following BMW Chassis:
E46 M3,E46,E85 Z4,E90,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83


Genuine BMW Exhaust Camshaft Position Sensor - E46 M3, E39 M5, MZ3, M...
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Genuine BMW - Corporate Logo
T#:1445
Part#: 13627796054
In Stock
9% off MSRP $ 290.99

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

$ 265.99 USD
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9% off MSRP
$ 290.99

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

$ 265.99 USD
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Sensor for: Exhaust. One weak point on BMW engines for years has been the cam position reference sensor. On the S54 engine in the E46 M3, M Roadster, and Z4M, there is one sensor for each cam. The sensor tells the computer the position of the cam on cylinder #1. The computer relies on the sensor's information to set injection timing and VAN0S control. When a sensor goes bad, the computer loses track of what position the cam is in. While the engine will continue to run (taking its measurements from the crank position sensor), the entire system is thrown off. The engine may stumble or run rough, but not misfire, and there will be a loss of performance. Each cam sensor also doubles as a sensor for the VAN0S. So when the sensor goes bad, the VAN0S will revert to a safe mode and will not advance.

While the engine will still run with a faulty cam position sensor, it's not running in its finest tune. The DME will have fault codes related to the cam sensor or for the VAN0S. This is the Original BMW sensor with a new o-ring.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2001-2006 E46 BMW M3
1997-2003 E39 BMW M5
2001-2002 Z3 BMW M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe
2000-2003 E52 BMW Z8 Roadster
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Oil Level Sensor
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URO - Corporate Logo
T#:590151
Part#: 12617508003
Ships in 1 Business Day
$ 63.99 USD
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$ 63.99 USD
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E46 M3, MZ3 S54 OEM Valeo Alternator (New)
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Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock at Vendor
$ 508.99

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

$ 494.99 USD
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$ 494.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4
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Bremmen Parts - Corporate Logo
T#:640145
Part#: 12147518628
In Stock
Sale - Save 16% $ 31.99

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

$ 26.87 USD
Free Shipping on orders $49 and up
Sale - Save 16%
$ 31.99

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

$ 26.87 USD
Free Shipping on orders $49 and up
A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivability issues


Genuine BMW Battery Tray
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Genuine BMW - Corporate Logo
T#:70584
Part#: 41128197890
Ships in 1 day
6% off MSRP $ 34.99

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

$ 32.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 34.99

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

$ 32.99 USD
Free Shipping on orders $49 and up


Genuine BMW Battery Tray
This item fits the following BMW Chassis:
E36 M3,E36

E46 M3, MZ3 S54 Genuine BMW Alternator (Rebuilt)
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Genuine BMW - Corporate Logo
T#:373349
Part#: 12317831436KT
Ships in 1 day
$ 1,481.99 USD
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$ 1,481.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This is a remanufactured alternator that includes a $50.00 refundable core charge.

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Flasher/Hazard Light Relay
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Wehrle - Corporate Logo
T#:31125654
Part#: 61361388533
Ships on Nov 24, 2026
$ 33.99 USD
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Genuine BMW Intake Camshaft Sensor - E46 E39 E60 X3 X5 Z3 Z4 ...
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Genuine BMW - Corporate Logo
T#:2915
Part#: 12147539165K
In Stock
$ 209.25 USD
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$ 209.25 USD
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This is a Genuine BMW Intake cam position sensor that fits BMW M52 M54 6 cylinder E46 E39 E60 X3 X5 Z3 Z4 models. This item is a common failure item and often triggers the following fault code "CAMSHAFT ANGLE PULSE GENERATOR". Price includes 12147539165 and required o-ring #12141748398.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.​

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
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 Z4 BMW Z4 2.5i Z4 3.0i
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Genuine BMW Crank Shaft Speed Sensor - S54
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Genuine BMW - Corporate Logo
T#:14788
Part#: 12147830789
In Stock
9% off MSRP $ 292.99

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

$ 267.99 USD
Free Shipping
9% off MSRP
$ 292.99

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

$ 267.99 USD
Free Shipping


Genuine BMW Speed Sensor
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
S54

Genuine BMW Starter Solenoid Switch
For vehicles with production date from 09/2002
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Genuine BMW - Corporate Logo
T#:39196
Part#: 12417515393
In Stock
19% off MSRP $ 132.99

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

$ 107.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
19% off MSRP
$ 132.99

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

$ 107.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up


Genuine BMW Solenoid Switch - Bosch
This item fits the following BMW Chassis:
E39,E46,E83 X3,E85

Fits BMW Engines including:
M54,M56


Hella Hella Horn - High Tone
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Hella - Corporate Logo
T#:592707
Part#: 2768551
In Stock
$ 30.99 USD
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Disc Type High-Tone, 12 V, 400 Hz with Bracket
URO Camshaft Position Sensor - BMW E36 Z3 M42 M44
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URO - Corporate Logo
T#:591864
Part#: 12141743072
In Stock
$ 36.99 USD
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URO Camshaft Position Sensor - BMW E36 Z3 M42 M44

The URO Camshaft Position Sensor - BMW E36 Z3 M42 M44 is an essential component for precise engine timing and efficient performance. Also known as the pulse generator, this sensor mounts to the side of the cylinder head and detects the camshaft’s position to optimize fuel injection and ignition timing. A failing sensor can trigger engine fault codes, cause rough idling, misfires, or poor fuel economy. Replacing a faulty camshaft position sensor restores accurate timing, ensuring smooth operation and peak efficiency for your BMW E36, Z3, M42, or M44 engine.

  • Direct replacement for BMW E36, Z3, M42, and M44 engines
  • Detects camshaft position for precise engine timing
  • Helps optimize fuel injection and ignition performance
  • Eliminates rough idling, misfires, and poor fuel economy
  • Designed for durability and long-lasting performance
  • Restores smooth operation and prevents engine fault codes
  • OE-style fitment for easy installation
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Hella Hella Horn - Low Tone
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Hella - Corporate Logo
T#:590880
Part#: 2768082
In Stock
$ 36.99 USD
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Disc Type Low-Tone, 12 V, 335 Hz with Bracket

BMW E46 E39 E53 Z3 OEM Bosch Alternator - 120amp
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Bosch - Corporate Logo
T#:373543
Part#: 12317501599
In Stock at Vendor
$ 526.99

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

$ 511.99 USD
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$ 511.99 USD
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If you car has died on the side of the road from a dead battery and you notice flickering or low powered head lights, it's likely your alternator failing. To be sure you are getting a high quality part with a long life-span, choose this OEM Bosch Alternator. This is an OEM replacement for BMW part # 12317501599.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

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Hella Air Horn Kit
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Hella - Corporate Logo
T#:592708
Part#: 3001651
In Stock at Vendor
$ 143.99

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

$ 139.99 USD
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$ 139.99 USD
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Get noticed with this air horn kit from Hella!
Genuine BMW Camshaft Position Sensor - E36 318is 318ti 318i, Z3 1.9 ...
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Genuine BMW - Corporate Logo
T#:367792
Part#: 12141743072
In Stock at Vendor
$ 539.99

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

$ 435.99 USD
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$ 435.99 USD
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Genuine BMW Underhood Battery Connection
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Genuine BMW - Corporate Logo
T#:39260
Part#: 12421433232
Ships in 1 day
6% off MSRP $ 65.99

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

$ 61.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 65.99

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

$ 61.99 USD
Free Shipping on orders $49 and up


Genuine BMW Base B+
This item fits the following BMW Chassis:
E36 M3,E36

Fits BMW Engines including:
M42,M44,M50,M52,S50,S52

Genuine BMW Oil Level Sensor
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Genuine BMW - Corporate Logo
T#:360718
Part#: 12617508003
Ships in 1 day
9% off MSRP $ 349.99

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

$ 319.99 USD
Free Shipping
9% off MSRP
$ 349.99

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

$ 319.99 USD
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