BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E46 (1999-2005)

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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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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
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
Genuine BMW Socket repair kit
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Genuine BMW - Corporate Logo
T#:207094
Part#: 61132359996
In Stock
Sale - Save 8% $ 29.99

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

$ 27.74 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 29.99

This product was last offered at the strikethrough price on
06-15-2026

$ 27.74 USD
Free Shipping on orders $49 and up


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


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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Race German Fuse Replacement Kit
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Race German - Corporate Logo
T#:2602224
Part#: E46FUSEKIT
Ships in 1 Business Day
$ 47.99 USD
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Complete set of fuses from OE BMW supplier for direct replacement of blown or mismatched fuses. Kit includes A complete set of new OEM fuses Extra fuses Fuse puller
Genuine BMW Exhaust Camshaft Position Sensor - E46 M3, E39 M5, MZ3, M...
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Genuine BMW - Corporate Logo
T#:1445
Part#: 13627796054
Ships in 3 Business Days
7% 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.

$ 271.99 USD
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7% 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.

$ 271.99 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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E46 M3, MZ3 S54 Genuine BMW Alternator (Rebuilt)
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Genuine BMW - Corporate Logo
T#:373349
Part#: 12317831436KT
Ships in 3 Business Days
$ 1,497.99 USD
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$ 1,497.99 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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Genuine BMW Intake Camshaft Sensor - E46 M3, MZ3, Z4 M
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Genuine BMW - Corporate Logo
T#:351
Part#: 12147539171
Ships in 3 Business Days
6% off MSRP $ 247.99

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

$ 231.99 USD
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6% off MSRP
$ 247.99

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

$ 231.99 USD
Free Shipping
Sensor for: Intake. A common failure - 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.

Applications:
2001-2006 E46 M3, M3 CSL
2006-current E85 Z4 M Roadster, E86 Z4 M Coupe
2001-2002 MZ3 M Roadster, M Coupe (S54 engine only)
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Bass Tone Sports Horn Kit 400Hz + 500Hz, 115Db
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PIAA - Corporate Logo
T#:31589317
Part#: 85110
Ships in 7 Business Days
$ 77.99 USD
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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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OMP Battery Cut Off Switch / Kill Switch
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OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
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$ 65.00 USD
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OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
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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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OEM Bosch Remanufactured Alternator - 120amp -- E46, Z4
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Bosch - Corporate Logo
T#:373254
Part#: 12317519620KT
Ships on Jul 29, 2026
$ 380.99

This product was last offered at the strikethrough price on
05-06-2026

$ 335.00 USD
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$ 335.00 USD
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Please check the part number on the alternator to ensure that you are ordering the correct part - This alternator has an oval connector on the back! If your 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 # 12317519620 & 12317519618. 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 refundable $91.00 core charge must be applied to this alternator. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.
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Hella Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65, E...
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Hella - Corporate Logo
T#:302290
Part#: 12147518628H
In Stock
$ 72.99 USD
Free Shipping on orders $49 and up

Used to detect the position of the camshaft, this sensor allows the computer to adjust the ignition timing for optimal performanceand to prevent damage from early or late detonation. Hella replacement sensors will ensure long lasting reliability and will keep your engine running like new.

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!

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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
20% 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
20% 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


Febi Outdoor Temperature Sensor / Probe
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We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382731
Part#: 65816936953
Ships in 1 Business Day
$ 20.47 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings

Exhaust Camshaft Sensor - E46 E39 E38 E60 E63 E65 X3 X5 Z3 Z4 ...
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Packaged by Turner - Corporate Logo
T#:338260
Part#: 12147518628HK
In Stock
Starting at $ 79.98 USD
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Starting at $ 79.98 USD
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This is the exhaust cam position sensor for cars with M52, M54, N62 engines. Choose either Genuine BMW or Hella brand. Hella manufactures the highest quality parts and is an OEM supplier to BMW. Includes BMW part numbers 12147518628 and 12141748398. Replaces BMW part number 12141438082.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 545i
2004-2005 E63 BMW 645ci
2002-2005 E65 BMW 745i 745li
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2004-2006 E53 BMW X5 4.4i 4.8i
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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Precision Raceworks Ethanol Sensor Breakout Harness
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Precision Raceworks - Corporate Logo
T#:35559424
Part#: 201-0411
Ships in 6 Business Days
$ 35.99

This product was last offered at the strikethrough price on
01-22-2026

$ 34.99 USD
Free Shipping on orders $49 and up
$ 34.99 USD
Free Shipping on orders $49 and up
n Ethanol Sensor Breakout Harness provides a clean wiring solution by splitting the signal from your ethanol content sensor between two analyzers, such as an ECU/controller and a gauge or Bluetooth display, without modifying your existing harness.his setup enables real-time ethanol level monitoring and facilitates comprehensive DME/ECU adjustments for enhanced automotive performance.citeturn0search0
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BMW E46 E39 E53 Z3 OEM Bosch Alternator - 120amp
For vehicles that came with a 120A Valeo alternator
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
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
Free Shipping
$ 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
Free Shipping on orders $49 and up
$ 139.99 USD
Free Shipping on orders $49 and up
Get noticed with this air horn kit from Hella!

Braille Performance GreenLite Lithium-ION Battery - G30 - 5.5lbs ...
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Braille - Corporate Logo
T#:558046
Part#: G30
Ships in 7 Business Days
$ 522.99 USD
Free Shipping on orders $49 and up
The G30 lithium battery from Braille is designed for the Import Tuner market (4 and 6 cylinder) for track use and has enough power for small black V8 race cars and hot rods with light electrical demands/accessories and standard compression. The G30 comes in the popular ETX 30 Group size, just like the B3121 AGM, so it is small and light enough to mount in a variety of locations. Incorporated in this battery is the same technology used in their race winning batteries used by nearly every OEM developer in classes ranging from SCCA to Formula 1.
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Endurance Series AGM Battery - B48-H6-L3
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Braille - Corporate Logo
T#:36947237
Part#: B48-H6-L3
In Stock
$ 398.99 USD
$ 398.99 USD
AAF Jump Post Relocation Bracket - E46
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Advanced Auto Fabrication - Corporate Logo
T#:7608844
Part#: 11648
Ships in 3 Business Days
$ 28.99 USD
Free Shipping on orders $49 and up
Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. The AAF E46 Jump Post Relocation Bracket makes it easy to adjust camber/caster on your race car by getting the factory jump post out of the way! In race car applications, the desired camber and caster settings can cause the strut tops and shock adjusters to interfere with the factory jump post. This kit takes just a few minutes to install and makes using strut braces and adjusting camber plates just that much safer and faster.
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Genuine BMW Lower Alternator Cooling Duct - E46 325i 325xi 330i 330xi...
For vehicles with aerodynamics package
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13082
Part#: 12317503969
Ships in 3 Business Days
4% off MSRP $ 73.99

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

$ 70.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 73.99

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

$ 70.99 USD
Free Shipping on orders $49 and up


Genuine BMW Air Channel Lower -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54



Genuine BMW Adapter Lead
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Genuine BMW - Corporate Logo
T#:14857
Part#: 12514592703
In Stock
4% off MSRP $ 113.99

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
4% off MSRP
$ 113.99

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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Genuine BMW Adapter Lead -
This item fits the following BMW Chassis:
E36,E39,E46

Fits BMW Engines including:
M52,S52

Genuine BMW Oil Level Sensor
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Genuine BMW - Corporate Logo
T#:360718
Part#: 12617508003
Ships in 3 Business Days
6% 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.

$ 327.99 USD
Free Shipping
6% 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.

$ 327.99 USD
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Genuine BMW Multi Purpose Relay (6-Prong) (Pine Green) - E31 E32 E34 ...
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Genuine BMW - Corporate Logo
T#:144119
Part#: 61358350566
Ships in 3 Business Days
4% off MSRP $ 24.99

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

$ 23.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 24.99

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

$ 23.99 USD
Free Shipping on orders $49 and up


Genuine BMW Relay, Change-Over Contact, Pine Green
This item fits the following BMW Chassis:
E36 M3,E34 M5,E39 M5,E60 M5,E46 M3,E34,E36,E38,E39,E46


Genuine BMW Crank Shaft Speed Sensor - S54
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Genuine BMW - Corporate Logo
T#:14788
Part#: 12147830789
Ships in 3 Business Days
6% 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.

$ 273.99 USD
Free Shipping
6% 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.

$ 273.99 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 Alternator Air Duct - Upper - E46 323 325 328 330 ...
Used only on 120A alternators
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Genuine BMW - Corporate Logo
T#:38783
Part#: 12311432465
Ships in 3 Business Days
3% off MSRP $ 174.99

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

$ 168.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 174.99

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

$ 168.99 USD
Free Shipping on orders $49 and up


Genuine BMW Air Channel Upper -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52,M54

Alternator Pulley - D=55mm - E36 E46 E39 Z3
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Genuine BMW - Corporate Logo
T#:7128
Part#: 12311432988
Ships in 6 Business Days
3% off MSRP $ 122.99

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

$ 118.99 USD
Free Shipping
3% off MSRP
$ 122.99

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

$ 118.99 USD
Free Shipping
This is the Genuine BMW alternator pulley that mounts to the front of the alternator. It is 55mm in diameter and designed for use on Bosch alternators.

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:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2000 E46 BMW 323i 323ci 328i 328ci
1997-2000 E39 BMW 528i
1996-2000 Z3 BMW Z3 1.9 Z3 2.3 Z3 Z3 2.8
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Genuine BMW Battery Cable - Positive
For vehicles with production date from 09/1999
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:140321
Part#: 61136910539
Ships in 3 Business Days
3% off MSRP $ 123.99

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

$ 119.99 USD
Free Shipping
3% off MSRP
$ 123.99

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

$ 119.99 USD
Free Shipping


Genuine BMW Battery Cable (Plus Pole)
This item fits the following BMW Chassis:
E46 M3,E46,E83 X3

Battery Cable - Starter Positive - E46
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Genuine BMW - Corporate Logo
T#:39267
Part#: 12421436548
Ships in 3 Business Days
3% off MSRP $ 107.99

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

$ 104.99 USD
Free Shipping
3% off MSRP
$ 107.99

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

$ 104.99 USD
Free Shipping


Genuine BMW Cable Starter-Base B+ -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52,M54,M56


Genuine BMW Engine Wiring Harness - E46 M54 2.5L E46 M54 3.0L ...
For vehicles with production date up to 03/2003
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:25114
Part#: 12517513554
Ships in 3 Business Days
3% off MSRP $ 517.99

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

$ 499.99 USD
Free Shipping
3% off MSRP
$ 517.99

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

$ 499.99 USD
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Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54


Genuine BMW Engine Wiring Harness, Engine Module - 12517523220 - E46 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13093
Part#: 12517523220
Ships in 3 Business Days
3% off MSRP $ 517.99

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

$ 499.99 USD
Free Shipping
3% off MSRP
$ 517.99

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

$ 499.99 USD
Free Shipping


Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54

Genuine BMW Ping Sensor - 13627568422 - E39,E46,E53,E83,E85
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:14970
Part#: 13627568422
Ships in 6 Business Days
10% off MSRP $ 173.99

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

$ 156.99 USD
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10% off MSRP
$ 173.99

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

$ 156.99 USD
Free Shipping


Genuine BMW Ping Sensor -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M52,M54,M56

Cable Alternator-Starter - E46, E53, E60, E83, Z3, Z4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:39282
Part#: 12421439743
Ships in 3 Business Days
3% off MSRP $ 120.99

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

$ 116.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 120.99

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

$ 116.99 USD
Free Shipping on orders $49 and up


Genuine BMW Cable Alternator-Starter -
This item fits the following BMW Chassis:
E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M54,M56



Genuine BMW convertible Wiring Harness - Left - E46 323Ci 325Ci 328Ci...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:135477
Part#: 54348243267
Ships in 6 Business Days
4% off MSRP $ 549.99

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

$ 528.99 USD
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4% off MSRP
$ 549.99

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

$ 528.99 USD
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Genuine BMW Wiring Harness,Fully Autom.Fldng Top Lft
This item fits the following BMW Chassis:
E46 M3,E46

Genuine BMW Alternator Air Duct - Lower - E46 323i 325i 328i 330i ...
Used only on 120A alternators
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:12653
Part#: 12311706643
Ships in 6 Business Days
4% off MSRP $ 159.99

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

$ 153.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 159.99

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

$ 153.99 USD
Free Shipping on orders $49 and up


Genuine BMW Air Channel Lower -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52,M54

Genuine BMW E46 Wiring Harness, Engine Trans. Module - 12517506793 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:39786
Part#: 12517506793
Ships in 6 Business Days
4% off MSRP $ 477.99

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

$ 460.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 477.99

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

$ 460.99 USD
Free Shipping on orders $49 and up

Enhance the performance and reliability of your BMW E46 with the Genuine BMW E46 Wiring Harness, Engine Trans. Module - 12517506793. This genuine BMW wiring harness is designed to provide seamless integration and reliable electrical connectivity for your E46 model.

  • Genuine BMW part ensures quality and compatibility
  • Specifically designed for the E46 model for precise fit and function
  • Provides reliable electrical connections for engine and transmission modules
  • Helps maintain optimal performance and functionality of engine and transmission systems


Genuine BMW Wiring Harness, Engine Trans. Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54

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Genuine BMW Engine Wiring Harness - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13097
Part#: 12517831646
Ships in 6 Business Days
3% off MSRP $ 782.99

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

$ 755.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 782.99

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

$ 755.99 USD
Free Shipping on orders $49 and up


Genuine BMW Engine Wiring Harness, Engine Module
This item fits the following BMW Chassis:
E46 M3,E46

Fits BMW Engines including:
S54


Genuine BMW Earth Strap For Engine Hood - 65311437881 - E46,E85 ...
Convertible models only
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:154531
Part#: 65311437881
Ships in 9 Business Days
3% off MSRP $ 36.99

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

$ 35.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 36.99

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

$ 35.99 USD
Free Shipping on orders $49 and up


Genuine BMW Earth Strap For Engine Hood
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Genuine BMW Alternator Cap - Bosch 120 Amp
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:22415
Part#: 12317501755
Ships in 9 Business Days
5% off MSRP $ 82.99

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

$ 78.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 82.99

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

$ 78.99 USD
Free Shipping on orders $49 and up


Genuine BMW Cap -
This item fits the following BMW Chassis:
E39,E46,E53 X5

Fits BMW Engines including:
M54


Wiring Harness - Engine Module - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13092
Part#: 12511439991
Ships in 9 Business Days
4% off MSRP $ 765.99

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

$ 738.99 USD
Free Shipping
4% off MSRP
$ 765.99

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

$ 738.99 USD
Free Shipping


Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52

Wiring Harness Engine Gearbox Module - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:39821
Part#: 12517523229
Ships in 9 Business Days
4% off MSRP $ 477.99

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

$ 460.99 USD
Free Shipping
4% off MSRP
$ 477.99

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

$ 460.99 USD
Free Shipping


Genuine BMW Wiring Harness, Engine Trans. Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M54


Horn - Low Pitch - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:143901
Part#: 61337893139
Ships in 9 Business Days
5% off MSRP $ 58.99

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

$ 55.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 58.99

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

$ 55.99 USD
Free Shipping on orders $49 and up


Genuine BMW Horn, Low Pitch - Bosch 420Hz
This item fits the following BMW Chassis:
E46 M3,E46


OEM Bosch Remanufactured Starter - E30 E34 E46 E39 Z3
For vehicles with production date from 09/2002
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:373255
Part#: 12417578684KT
Ships in 5 Business Days
$ 307.99

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

$ 300.99 USD
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$ 300.99 USD
Free Shipping
Includes a $71.50 core charge to be refunded after we receive your refundable core If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high-quality replacement that will give you peace of mind thanks to its long life-span. 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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Knock Sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:35964551
Part#: 13627568422
In Stock
$ 75.99 USD
Free Shipping on orders $49 and up
This sensor detects engine knocking or pinging and adjusts the timing to ensure optimal engine performance and efficiency.
Genuine BMW Solenoid Switch - 12417832149 - E46,E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:13090
Part#: 12417832149
Special Order: No Guaranteed ETA
3% off MSRP $ 168.99

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

$ 163.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 168.99

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

$ 163.99 USD
Free Shipping on orders $49 and up

We recommend replacing this starter solenoid when installing a new starter, as a failed solenoid switch can cause even a new starter to go bad quickly.


Genuine BMW Solenoid Switch
This item fits the following BMW Chassis:
E46 M3,E46

Fits BMW Engines including:
S54
 

 

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Cable Alternator-Starter - E46
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:39266
Part#: 12421436547
Ships in 9 Business Days
2% off MSRP $ 50.99

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

$ 49.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 50.99

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

$ 49.99 USD
Free Shipping on orders $49 and up


Genuine BMW Cable Alternator-Starter -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52

OEM Bosch Alternator - 120 Amp - E46, E39, Z3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:359520
Part#: AL0738XKITKT
Ships on Jul 29, 2026
$ 307.00 USD
Free Shipping
$ 307.00 USD
Free Shipping

If your 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 # 12311432980 and 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!


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

This Bosch Alternator fits the following BMWs:
1997-2000 E39 5 Series 528i
2000 E46 3 Series 323i 323ci 328i 328ci
1997-2000 Z3 Roadster Z3 2.3 Z3 2.8

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