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BMW Electrical Sensors, Switches, & Relays

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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Meyle Crankshaft Pulse Sensor - BMW EXX, FXX
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Meyle - Corporate Logo
T#:52762518
Part#: 314810014
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New Item
$ 19.99 USD
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Revitalize your vehicle’s performance and reliability with the MEYLE Crankshaft Pulse Sensor.
MEYLE Crank Position Sensor - BMW E46, E90
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Meyle - Corporate Logo
T#:52621846
Part#: MPS0126
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New Item
$ 29.99 USD
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The Meyle MPS0126 Crankshaft Position Sensor is a robust replacement for aging or failing factory sensors that often trigger P0335 or P0339 trouble codes.
Coolant Temperature Sensor
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Meyle - Corporate Logo
T#:5958757
Part#: 12621747281
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$ 12.99 USD
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MEYLE-ORIGINAL: True to OE coolant temperature sensor. Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. Comparable OE Cross Reference - 12621747281 12621710535
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Meyle Camshaft Position Sensor - BMW i3
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Meyle - Corporate Logo
T#:52762526
Part#: 3148100005
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New Item
$ 30.99 USD
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The MEYLE Camshaft Position Sensor restores the "timing" of your engine, ensuring your fuel is injected at the perfect millisecond.

Batteryclamp Positive - E36
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Genuine BMW - Corporate Logo
T#:39330
Part#: 12421724568
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9% 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.

$ 19.99 USD
Free Shipping on orders $49 and up
9% 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.

$ 19.99 USD
Free Shipping on orders $49 and up


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

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

FAE Oil Pressure Switch - M12x1.5
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FAE - Corporate Logo
T#:377029
Part#: 12612367061
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$ 5.99 USD
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Leaking or malfunctioning oil pressure switches can be disastrous

URO - Camshaft Position Sensor - E46 323Ci, E46 325i, E39 528i, Z3 2....
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URO - Corporate Logo
T#:33679726
Part#: 12147539165
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$ 18.99 USD
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URO Camshaft Position Sensor is a premium replacement component specifically designed for BMW vehicles, ensuring optimal engine performance and reliability. Manufactured by Turner Motorsport, this camshaft position sensor plays a crucial role in maintaining accurate timing and enhancing overall engine efficiency. By upgrading to the URO Camshaft Position Sensor, BMW owners can expect improved engine responsiveness and a significant reduction in potential diagnostic trouble codes.

  • Enhanced Engine Performance: Ensures precise timing and efficient engine operation, contributing to superior overall performance.
  • Durable Construction: Crafted from high-quality materials that withstand extreme conditions for long-lasting durability.
  • Easy Installation: Designed for a direct fit, facilitating straightforward installation for both professionals and DIY enthusiasts.
  • Reliable OEM Replacement: Matches OEM specifications, providing peace of mind and preserving the integrity of the vehicle.
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Starter Mounting Hardware
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Rein - Corporate Logo
T#:594380
Part#: 12410392577
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$ 10.99 USD
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Modern starter and water pump fasteners are torque-to-yield, meaning they stretch and can only be safely used once. Replace your hardware for peace of mind.

17 X 23 X 3 / FPM RD
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Elring - Corporate Logo
T#:15015283
Part#: 13627792257
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$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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Replacement camshaft position sensor o-ring for N57/N57/M57 Diesels

Vemo Crankshaft Position Sensor - BMW N20 N26 2.0L
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Vemo - Corporate Logo
T#:48815478
Part#: 13627595860
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New Item
$ 24.99 USD
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This is the crankshaft 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 Hitachi sensor to restore peak performance.
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Cover Electronics Box - Z4
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Genuine BMW - Corporate Logo
T#:187300
Part#: 12907578120
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4% off MSRP $ 51.99

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

$ 49.99 USD
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4% off MSRP
$ 51.99

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 Cover For E-Module -
This item fits the following BMW Chassis:
E89 Z4

Fits BMW Engines including:
N20,N52N,N54,N54T

Meyle Outdoor Temperature Sensor / Probe
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Meyle - Corporate Logo
T#:579266
Part#: 3009190001
Special Order: No Guaranteed ETA
$ 44.99 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings


URO Multi Purpose Relay - 61368384505
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URO - Corporate Logo
T#:37858387
Part#: 61368384505
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$ 30.99 USD
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URO Multi Purpose Relay - 61368384505

URO Multi Purpose Relay - 61368384505 is the perfect replacement for a failed relay, restoring the proper electrical circuit performance in BMW vehicles. Designed as a direct-fit OE reproduction, this relay ensures a seamless plug-and-play installation, ensuring optimal function and reliability.

  • Replaces failed relays to restore proper electrical circuit operation
  • Direct-fit OE reproduction design for easy installation and compatibility
  • Manufactured using high-quality materials to resist heat, cold, and condensation
  • Modern electronics protect against electrical arcing and burnout for long-term durability
  • Factory tested to ensure proper performance and functionality
  • Backed by a 24-month unlimited mileage warranty

The URO Multi Purpose Relay is an essential component for maintaining the smooth electrical performance of BMW vehicles, ensuring long-lasting reliability and performance.

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FAE Oil Pressure Switch - M12x1.5
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FAE - Corporate Logo
T#:374049
Part#: 12617568480
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$ 7.99 USD
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Leaking or malfunctioning oil pressure switches can be disastrous
Oil Level Sensor
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Vitesco Technologies - Corporate Logo
T#:39329321
Part#: 12615A740A2
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$ 225.99 USD
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$ 225.99 USD
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Crankshaft Position Sensor
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URO - Corporate Logo
T#:35863159
Part#: 13627525015
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$ 28.49 USD
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Having a crank but no starting issue? This sensor is often the culprit

ReFlex Lite: Advanced Sequential Injector Controller - Inline-4 ...
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Motiv Motorsports - Corporate Logo
T#:29234292
Part#: 910.1010
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$ 469.00 USD
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The ReFlex LITE is a simple yet elegant fueling solution for direct injected vehicles that need to add more fuel by installing a port injection system to keep up with their modifications to the vehicle. Using the same precise form of sequential fuel injection as the ReFlex+, the ReFlex LITE brings a more affordable fuel controller without the additional features of the ReFlex+. Sequential port fuel injection for inline-4 engines Firmware and maps are available for multiple vehicles FREE on our website High resolution calibration tables 24x24 cell RPM vs MAP 0-48psi MAP pressure range 250RPM increments up to 8500RPM High resolution datalogging Fault detection status available to monitor in TunerPRO RT Compact in size Universal fitment Simple installation Please Note: The ReFlex LITE does NOT have the ability to analyze and transmit ethanol content to an ECU.
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Genuine BMW Remanufactured 180 Amp Alternator - E82/88 E9X E60/61 N54...
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Genuine BMW - Corporate Logo
T#:373810
Part#: 12317558220KT
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$ 1,193.99 USD
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$ 1,193.99 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. Includes a $432.00 core charge to be refunded after we receive your refundable core.
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Flywheel Pickup - Mounts In Bell Housing - 2 Per Car - Sold Individua...
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FAE - Corporate Logo
T#:578903
Part#: 12141710668A
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$ 43.99 USD
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Re-manufactured Starter Motor - Priced Each
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Bosch - Corporate Logo
T#:3471789
Part#: 124123547095KT
Back Ordered
$ 346.99

This product was last offered at the strikethrough price on
04-09-2026

$ 327.99 USD
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$ 327.99 USD
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Price Included a $40.00 Core Charge

Mass Air Flow Sensor (MAF) 0280218266
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URO - Corporate Logo
T#:48125822
Part#: 13627602038
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New Item
$ 90.99 USD
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Oil Level Sensor
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URO - Corporate Logo
T#:8246791
Part#: 12617501786
Ships in 1 Business Day
$ 59.99 USD
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Replace your faulty sensor when the oil level light is on, but oils are at correct levels. Direct-fit OE replacement design restores factory oil level sensor function Easy plug-and-play connection Includes gasket
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URO - Crankshaft Position Sensor with Seal - E60 545i, E63 650i, E64 ...
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URO - Corporate Logo
T#:33713099
Part#: 13627639278
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$ 22.99 USD
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URO - Crankshaft Position Sensor for BMW vehicles is an essential component for maintaining peak engine performance. Available at Turner Motorsport, this high-quality sensor accurately monitors the position of the crankshaft, enabling the ECU to fine-tune ignition timing and fuel injection. Designed to match OEM specifications, the URO - Crankshaft Position Sensor offers superior reliability and compatibility with various BMW models.

  • Optimized Engine Timing: Delivers precise data to the ECU for better ignition timing and overall engine efficiency.
  • High-Quality Manufacturing: Crafted to meet or exceed OEM standards, ensuring durability and consistent performance.
  • Improved Fuel Economy: Accurate crankshaft data helps maintain optimal engine conditions, reducing fuel consumption.
  • Wide Compatibility: Compatible with a range of BMW models, making it an ideal replacement sensor.
  • Reliable Performance: Built to resist wear and tear, ensuring long-term, dependable engine operation.
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Hitachi Crankshaft Position Sensor - BMW M52 S52 M54
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Hitachi - Corporate Logo
T#:48815470
Part#: 12141709616
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$ 32.99 USD
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NOTE: Does not include o-ring seal - see BMW # 12141748398 This is the crankshaft 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 Hitachi sensor to restore peak performance.
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Hitachi Crankshaft Position Sensor - BMW N20 N26 2.0L
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Hitachi - Corporate Logo
T#:48815475
Part#: 13627595860
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New Item
$ 68.99 USD
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This is the crankshaft 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 Hitachi sensor to restore peak performance.
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OEM Bosch Remanufactured Alternator - AL9453X - F10 528i, F25 2.8i N...
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Bosch - Corporate Logo
T#:639658
Part#: 12317591271KTKT
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$ 555.99 USD
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$ 555.99 USD
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*Price includes a refundable $65 Core Charge* If your car won't turn over, there is a good chance your starter is shot. Bosch's OEM starter is a high-quality replacement that will give you peace of mind thanks to its long life-span. Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products. As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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Oil Pressure Switch
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URO - Corporate Logo
T#:373035
Part#: 61311354274
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$ 3.99 USD
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Make sure your vehicle is reading its oil pressure correctly with a new oil pressure switch.

Genuine BMW Battery Cable (Plus Pole) Sbk - 61126928990 - E63,E63 M6 ...
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Genuine BMW - Corporate Logo
T#:138283
Part#: 61126928990
Back Ordered
3% off MSRP $ 374.99

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

$ 361.99 USD
Free Shipping
3% off MSRP
$ 374.99

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

$ 361.99 USD
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Genuine BMW Battery Cable (Plus Pole) - Sbk
This item fits the following BMW Chassis:
E63 M6,E63


Bosch Starter Motor - E23 E24 E28
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Bosch - Corporate Logo
T#:224639
Part#: SR442X
Back Ordered
$ 222.99

This product was last offered at the strikethrough price on
04-15-2026

$ 160.00 USD
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$ 160.00 USD
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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 exacting assembly process and high level of durability you can expect a long service life from all Bosch products.

This genuine Bosch Starter fits the following BMWs:
1988 E28 5 Series 528e M5
1988-1989 E24 6 Series M6
1984-1987 E23 7 Series 735i
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Bosch Remanufactured Alternator - 150amp
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Bosch - Corporate Logo
T#:371081
Part#: 12317508054BOSKT
Back Ordered
$ 1,177.99

This product was last offered at the strikethrough price on
12-25-2025

$ 1,103.99 USD
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$ 1,103.99 USD
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Includes a $100.00 refundable core charge

Crankshaft Position Sensor
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Bosch - Corporate Logo
T#:594976
Part#: 12141721504
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$ 88.34 USD
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$ 88.34 USD
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Alternator - 105 Amp Compact
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Genuine MINI - Corporate Logo
T#:568371
Part#: 12317515030KT2KT
Back Ordered
$ 1,211.99

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

$ 1,203.99 USD
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$ 1,203.99 USD
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includes a $192.50 core charge

URO Crankshaft Position Sensor - BMW E46
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URO - Corporate Logo
T#:37858384
Part#: 13627548994
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$ 19.99 USD
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URO Crankshaft Position Sensor - BMW E46

URO Crankshaft Position Sensor - BMW E46 is a premium replacement designed to restore precise engine timing and eliminate performance issues caused by a faulty sensor. This direct-fit OE replacement ensures accurate crankshaft position readings for smooth engine operation and reliable performance.

  • Direct-fit OE replacement restores proper engine timing and functionality
  • Eliminates check engine lights and trouble codes caused by a failed sensor
  • High-quality polymer and metal construction withstands extreme engine temperatures
  • Alloy conductors minimize electrical resistance for precise signal transmission at any RPM
  • Ensures optimal fuel efficiency and engine performance
  • Backed by a 24-month unlimited mileage warranty

Compatible with BMW E46 models, this URO Crankshaft Position Sensor delivers long-lasting reliability and smooth engine operation.

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Oil Pressure Switch
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URO - Corporate Logo
T#:591879
Part#: 12611277642
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$ 1.99 USD
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Your vehicle is equipped with numerous gauges to allow you to have a better idea of what is going on under the hood. By monitoring these gauges, you can prevent premature engine damage due to low oil pressure or high coolant temperatures. If one isn't functional though, you are in the dark as far as that system goes. One of the most vital is the oil pressure. Replace the sensor to get your gauge working properly again.
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Battery Charge Module - F15
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Genuine BMW - Corporate Logo
T#:533968
Part#: 61426817834
Back Ordered
6% off MSRP $ 871.99

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

$ 815.99 USD
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6% off MSRP
$ 871.99

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

$ 815.99 USD
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OEM INA Alternator Pulley - Overrunning Type - E82, E88, E9x, F10, F2...
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Ina - Corporate Logo
T#:42167226
Part#: EA0141
Back Ordered
$ 67.99 USD
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$ 67.99 USD
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Whether you're replacing a failing alternator pulley or performing preventive maintenance, this Alternator Pulley ensures your BMW continues to perform with factory precision and reliability.


Hitachi Voltage Regulator - BMW E36 Z3 E34
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Hitachi - Corporate Logo
T#:48850070
Part#: 12321739435
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New Item
$ 60.99 USD
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$ 60.99 USD
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Alternator voltage regulators are a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to keep vehicle voltage within a safe range, protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator
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Alternator - 210A
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Denso - Corporate Logo
T#:17140151
Part#: 12317616126
Back Ordered
$ 521.99

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

$ 506.99 USD
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$ 506.99 USD
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No core charge required!
OEM INA Alternator Pulley - E60, E90
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Ina - Corporate Logo
T#:42167235
Part#: EA0202
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$ 46.99 USD
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$ 46.99 USD
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Whether you have a failing component or are performing preventive maintenance, this INA Alternator Pulley from Turner Motorsport is the perfect choice to keep your BMW’s electrical and accessory systems operating at peak performance.
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OEM Bosch Crankshaft Sensor - E70 E90 M57 3.0L
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Bosch - Corporate Logo
T#:639133
Part#: 13627809334
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$ 120.99 USD
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$ 120.99 USD
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The crankshaft position sensor measures the speed at which the crank is turning and adjusts fueling via the ECU to match. If it fails, your computer will not know the speed and will fuel it improperly. Replace yours with a Bosch unit to get your computer reading everything properly again. Installs exactly in the place of your old sensor and will eliminate your car's idle, performance, and misfiring problems.
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Alternator
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Valeo - Corporate Logo
T#:594102
Part#: 12311247288
Back Ordered
$ 547.99

This product was last offered at the strikethrough price on
05-08-2026

$ 532.99 USD
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$ 532.99 USD
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Replacement Alternator from Valeo
Accessory Drive Belt Kit - E34, E83
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Ina - Corporate Logo
T#:42167237
Part#: FB0198K
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$ 145.99 USD
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Ideal for scheduled maintenance or as a preventive repair, the Accessory Drive Belt Kit offers dependable performance and peace of mind for BMW owners looking to maintain factory-quality operation and longevity
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Genuine BMW Engine Wiring Harness
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Genuine BMW - Corporate Logo
T#:572317
Part#: 12517857116
Back Ordered
5% off MSRP $ 839.99

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

$ 796.99 USD
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5% off MSRP
$ 839.99

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

$ 796.99 USD
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Genuine BMW Engine Wiring Harness

An essential component for maintaining optimal performance and electrical reliability in your BMW vehicle. Crafted to BMW's exacting standards, this engine wiring harness ensures proper connectivity and functionality of various engine components. Its durable construction and precise engineering guarantee long-lasting durability, while its seamless integration with the engine system ensures proper function. Trust Genuine BMW parts to keep your BMW running smoothly.

  • Maintains optimal performance and electrical reliability
  • Ensures proper connectivity of engine components
  • Durable construction for long-lasting durability
  • Precise engineering for proper function
  • Seamless integration with engine system
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Remanufactured Alternator - 105A - E36 M3 S50 Euro Only
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For European models only
Genuine BMW - Corporate Logo
T#:378167
Part#: 12311403936KT
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$ 1,465.16 USD
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$ 1,465.16 USD
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Remanufactured Genuine BMW 105 Amp Alternator Note: This product includes a $200 core charge to be refunded once we receive your rebuildable core.