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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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Genuine BMW I01 Safety Box
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Genuine BMW - Corporate Logo
T#:537679
Part#: 61278648904
Ships in 5 Business Days
3% off MSRP $ 1,069.99

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

$ 1,042.99 USD
Free Shipping
3% off MSRP
$ 1,069.99

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

$ 1,042.99 USD
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Enhance the safety of your BMW with the Genuine BMW I01 Safety Box. This essential safety component is designed to provide added protection and security for your vehicle.

  • Genuine OEM BMW part
  • Ensures optimal safety standards
  • Easy installation process
  • Compatible with BMW I01 models
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Genuine BMW Starter Motor
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Genuine BMW - Corporate Logo
T#:481060
Part#: 12411729981
Ships in 5 Business Days
8% off MSRP $ 1,116.99

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

$ 1,027.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 1,116.99

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

$ 1,027.99 USD
Free Shipping on orders $49 and up
Has your BMW starter not been cranking your engine like it used to or are you getting an intermittent clicking while attempting to start? There is a good chance your starter is beginning to fail. This replacement starter is brand new, so no core is required.
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OEM Bosch Remanufactured 180 Amp Alternator - E82/88 E9X E60/61 N54 ...
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Bosch - Corporate Logo
T#:373812
Part#: 12317558220KT1
Ships in 1 Business Day
$ 1,029.99

This product was last offered at the strikethrough price on
04-10-2026

$ 964.99 USD
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$ 964.99 USD
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Replace your dead alternator with this new unit and make sure your battery is being charged properly. 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. Includes a $195.00 core charge to be refunded after we receive your refundable core.
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Genuine BMW Remanufactured 170A Alternator - E90 335d
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Genuine BMW - Corporate Logo
T#:375910
Part#: 12317802929KT
Ships in 5 Business Days
$ 964.99 USD
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$ 964.99 USD
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This is a OEM BMW remanufactured 170 amp alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an Original Equipment Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

A $50 core charge is included in the price. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.  

This item fits the following BMWs:  
2006-2010  E90 BMW  335d M57
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Intensity Lithium-ION Battery - i34RX - 11.5lbs
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Braille - Corporate Logo
T#:54388454
Part#: I34RX
Ships in 6 Business Days
New Item
$ 949.99 USD
Free Shipping on orders $49 and up
Whether you're building a dedicated track weapon or upgrading your street machine for ultimate reliability, unsprung and upper-chassis weight is the enemy of performance. Positioned high up in the engine bay or rear corners, a heavy factory battery negatively impacts your car's center of gravity.
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Genuine BMW Remanfuactured Alternator - 170A - F25 X3 xDrive28i N52 3...
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Genuine BMW - Corporate Logo
T#:2706161
Part#: 12317591270KT
Ships in 8 Business Days
$ 925.99 USD
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$ 925.99 USD
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Includes a refundable $194 core charge

Genuine BMW Turn Signal, Cruise Control, Wiper Switch, Steering Angle...
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Genuine BMW - Corporate Logo
T#:143166
Part#: 61319164423
Ships in 2 Business Days
4% off MSRP $ 966.99

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

$ 923.99 USD
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4% off MSRP
$ 966.99

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

$ 923.99 USD
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Genuine BMW Switch Unit Steering Column -
This item fits the following BMW Chassis:
E70 X5

Genuine BMW engine wiring harness - Z3 M Roadster, Z3 M Coupe S54 ...
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Genuine BMW - Corporate Logo
T#:40035
Part#: 12517831637
Ships in 2 Business Days
3% off MSRP $ 941.99

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

$ 916.99 USD
Free Shipping
3% off MSRP
$ 941.99

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

$ 916.99 USD
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Genuine BMW ENGINE WIRING HARNESS, ENGIN
Fits BMW Engines including:
S54


TELEMATICS CONTROL UNIT - Genuine BMW
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Genuine BMW - Corporate Logo
T#:632359
Part#: 84109843931
Ships in 2 Business Days
2% off MSRP $ 913.99

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

$ 896.99 USD
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2% off MSRP
$ 913.99

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

$ 896.99 USD
Free Shipping

Discover the Turner Motorsport Genuine BMW Telematics Control Unit, a vital component for top-notch connectivity and functionality in your BMW. Carefully designed to seamlessly integrate into your vehicle's system, this unit guarantees optimal performance and compatibility, enhancing the overall driving experience.

  • Genuine BMW Telematics Control Unit for guaranteed quality.
  • Ensures top-notch connectivity for enhanced functionality.
  • Seamlessly integrates into your BMW's system.
  • Optimizes performance and compatibility.
  • Elevates the overall driving experience.

Upgrade your BMW's connectivity with the Turner Motorsport Genuine BMW Telematics Control Unit for a superior and integrated driving experience.

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Wiring Harness - Engine Module - E53
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Genuine BMW - Corporate Logo
T#:39797
Part#: 12517513340
Ships in 8 Business Days
4% off MSRP $ 934.99

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

$ 892.99 USD
Free Shipping
4% off MSRP
$ 934.99

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

$ 892.99 USD
Free Shipping


Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E53 X5

Fits BMW Engines including:
M62

Motiv ReFlex+ for BMW
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Motiv Motorsports - Corporate Logo
T#:17970629
Part#: RFXF02UI6
In Stock
$ 859.00 USD
Free Shipping on orders $49 and up
The MOTIV ReFlex+ is an Advanced I/O Integration module allowing a level of precise control of auxiliary components. In addition, the ReFlex can incorporate external data into the factory DME/ECU in parallel through optional CANbus integration. Utilizing the CANbus option, multiple digital and analog signals can be used by the DME/ECU for safety, data logging, or adaptive tuning features. It is unique in its ability to function as a separate standalone, as well as a parallel module in conjunction with the DME/ECU. The ReFlex provides the most accurate and precise supplementary sequential fuel injection with the ability to control other advanced features all in one place. It brings a new level of control, function, and versatility to tuning any modern-day vehicle. Preset crank and cam trigger for most modern-day BMW engines, as well as fully configurable triggers to be synched on any vehicle application. Configurable to operate on 4, 5, 6, and 8-cylinder engines. 3 Point MAP sensor calibration table makes it configurable for almost any MAP or TMAP sensor. Sequential Port Injection with the ability to sense individual injector failures on 4 to 8-cylinder engines. Built-in Ethanol Content Analyzer. The Re|Flex firmware and XDFs include ethanol compensation tables to scale properly for varying ethanol % based on real-time input from the sensor. 2x Additional Outputs. These outputs have 12x12 resolution tables for control in TunerPro R/T. These can be configured to run as on/off, digital, frequency (25hz), or PID. Boost Control WGDC Methanol Solenoid Control PWM (for use with valves such as the Aquamist FAV and the ProMeth Pulse Valve) Nitrous Solenoid Control PWM Auxiliary fuel pump relay trigger 2x Inputs Ethanol Content Sensor Fuel Pressure Sensor (0-10bar) Oil Pressure (0-10bar) Coolant Pressure (0-10bar) EGBP/EMAP (0-10bar) CANbus (not required) enabled communication for the transmission and receiving of digital signals for fully DME/ECU integrated control of external modifications. The CANbus communications also allow for data and errors to be transmitted to and from the vehicle's engine control computer in order to add safeguards and implement engine trips and fail safes. Logging via OBDII is still fully functional and is not affected at all by the communication with the Re|Flex. Some of the developments underway include: Error reporting to and from factory ECU for unparalleled safety Output WGDC by converting an EWG signal to a more conventional DC output for controlling standard 3port and 4port boost solenoids for use with external WG’s The ability to datalog non-factory parameters such as ethanol content, additional pressure sensor, PI IDC, and more! These features make the Re|Flex the most powerful and safest supplementary and auxiliary controller on the market. However, this is only the beginning. As flash platforms find the need for more accessories to control, the Re|Flex was designed to be updated easily by the end user in order to add functionality as it is developed.
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Motiv ReFlex+
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Motiv Motorsports - Corporate Logo
T#:29101668
Part#: 910.1001
Ships in 4 Business Days
$ 849.00 USD
Free Shipping on orders $49 and up
The MOTIV ReFlex+ is an Advanced I/O Integration module allowing a level of precise control of auxiliary components. In addition, the ReFlex can incorporate external data into the factory DME/ECU in parallel through optional CANbus integration. Utilizing the CANbus option, multiple digital and analog signals can be used by the DME/ECU for safety, data logging, or adaptive tuning features. It is unique in its ability to function as a separate standalone, as well as a parallel module in conjunction with the DME/ECU. The ReFlex provides the most accurate and precise supplementary sequential fuel injection with the ability to control other advanced features all in one place. It brings a new level of control, function, and versatility to tuning any modern-day vehicle. Preset crank and cam trigger for most modern-day BMW engines, as well as fully configurable triggers to be synched on any vehicle application. Configurable to operate on 4, 5, 6, and 8-cylinder engines. 3 Point MAP sensor calibration table makes it configurable for almost any MAP or TMAP sensor. Sequential Port Injection with the ability to sense individual injector failures on 4 to 8-cylinder engines. Built-in Ethanol Content Analyzer. The Re|Flex firmware and XDFs include ethanol compensation tables to scale properly for varying ethanol % based on real-time input from the sensor. 2x Additional Outputs. These outputs have 12x12 resolution tables for control in TunerPro R/T. These can be configured to run as on/off, digital, frequency (25hz), or PID. Boost Control WGDC Methanol Solenoid Control PWM (for use with valves such as the Aquamist FAV and the ProMeth Pulse Valve) Nitrous Solenoid Control PWM Auxiliary fuel pump relay trigger 2x Inputs Ethanol Content Sensor Fuel Pressure Sensor (0-10bar) Oil Pressure (0-10bar) Coolant Pressure (0-10bar) EGBP/EMAP (0-10bar) CANbus (not required) enabled communication for the transmission and receiving of digital signals for fully DME/ECU integrated control of external modifications. The CANbus communications also allow for data and errors to be transmitted to and from the vehicle's engine control computer in order to add safeguards and implement engine trips and fail safes. Logging via OBDII is still fully functional and is not affected at all by the communication with the Re|Flex. Some of the developments underway include: Error reporting to and from factory ECU for unparalleled safety Output WGDC by converting an EWG signal to a more conventional DC output for controlling standard 3port and 4port boost solenoids for use with external WG’s The ability to datalog non-factory parameters such as ethanol content, additional pressure sensor, PI IDC, and more! These features make the Re|Flex the most powerful and safest supplementary and auxiliary controller on the market. However, this is only the beginning. As flash platforms find the need for more accessories to control, the Re|Flex was designed to be updated easily by the end user in order to add functionality as it is developed.
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Bosch Alternator - 120 Amp - E46, E39, Z3 2001-2005 (with factory Val...
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Bosch - Corporate Logo
T#:386207
Part#: AL0703X
Ships on Aug 5, 2026
$ 844.99 USD
Free Shipping
$ 844.99 USD
Free Shipping
120 amp Bosch alternator for many BMW 6 cylinders (see list below). Replaces stock Valeo alternator with rectangular plug on the back. Bosch is an original equipment supplier to BMW, and is the finest and most recognized German brand of alternator available. Buy only the best alternator for your BMW -- buy a Bosch alternator. Same as BMW part#1231751599. 

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.

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 alternator has a rectagular connector on the back! Please check to ensure you are getting the correct alternator  

This Bosch Alternator fits the following BMWs:
1998-2000  E39 5 Series  528i
2001-2003  E39 5 Series  525i & 530i
2001-2005  E46 3 Series  325i, 325Ci, 325xi - only for cars with M54 engine
2001-2005  E46 3 Series  330i, 330Ci & 330xi
2001-2002  Z3 Roadster  Z3 2.5 liter 
2003-2005  Z4 Roadster/Coupe  Z4 2.5 liter & Z4 3.0 liter
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Genuine Mini Fuse Box Speg High - 61359813620
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Genuine MINI - Corporate Logo
T#:207472
Part#: 61359813620
Ships in 2 Business Days
2% off MSRP $ 862.31

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

$ 841.24 USD
Free Shipping
2% off MSRP
$ 862.31

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

$ 841.24 USD
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Enhance your BMW's electrical system with this comprehensive fuse set, featuring a main fuse panel equipped with both regular and mini fuses. This all-inclusive fuse kit ensures optimal functionality and compatibility for various BMW models. Keep your vehicle's electrical components protected and operating smoothly with this fuse set designed to accommodate diverse fuse types.

Benefits:

  • Comprehensive fuse set for BMW's electrical system
  • Includes main fuse panel with regular and mini fuses
  • Ensures optimal functionality and compatibility
  • Protects electrical components in your BMW
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Genuine MINI Fuse Box SPEG High - R61 R57 R56 R55
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Genuine MINI - Corporate Logo
T#:214114
Part#: 61353457582
Ships in 2 Business Days
7% off MSRP $ 892.99

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

$ 826.99 USD
Free Shipping
7% off MSRP
$ 892.99

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

$ 826.99 USD
Free Shipping


Genuine MINI Fuse Box Speg High

Enhance Your Mini's Electrical Protection with Main Fuse Panel

Upgrade your Mini's fuse panel with this versatile replacement including both regular and mini fuses. This main fuse panel ensures optimal electrical protection for your Mini, providing a convenient solution for fuse replacements.

  • Replacement main fuse panel for Mini vehicles
  • Includes regular and mini fuses for versatile compatibility
  • Ensures optimal electrical protection for your Mini
  • Convenient solution for fuse replacements
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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.

$ 821.99 USD
Free Shipping
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.

$ 821.99 USD
Free Shipping

Engine Wiring Harness - E70
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Genuine BMW - Corporate Logo
T#:40065
Part#: 12518510901
Ships in 2 Business Days
4% off MSRP $ 856.99

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

$ 818.99 USD
Free Shipping
4% off MSRP
$ 856.99

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

$ 818.99 USD
Free Shipping
Genuine BMW ENGINE WIRING HARNESS DDE
Fits BMW Engines including:
M57

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.

$ 802.00 USD
Free Shipping
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.

$ 802.00 USD
Free Shipping

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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Alternator - 220 Amp
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Valeo - Corporate Logo
T#:639716
Part#: 12317804266
In Stock at Vendor
$ 822.99

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

$ 799.99 USD
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$ 799.99 USD
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DeatschWerks X3 Series Fuel Pump Module - BMW G8X M3/M4/X3
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DeatschWerks - Corporate Logo
T#:53891657
Part#: 9-000-7080
Ships in 6 Business Days
New Item
$ 799.00 USD
Free Shipping on orders $49 and up
The DeatschWerks X3 Series Fuel Pump Module (9-000-7080) is the ultimate drop-in fuel system upgrade you need to unlock serious power.

ReFlex+ Plug-N-Play Harness Kit - Tensility Motorsport
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Motiv Motorsports - Corporate Logo
T#:29201085
Part#: 200.1058
Ships in 4 Business Days
$ 794.00 USD
Free Shipping on orders $49 and up
Tensility Motorsports has developed a plug and play kit for the ReFlex+ that was engineered to meet our high quality standards. TMS has been approved by MOTIV to manufacturer harnesses and they will not void your warranty on MOTIV ReFlex+ products. With attention to detail in the selection of wiring, production standards, and quality assurance, TMS plug and play harnesses ensure a consistent and reliable installation for a hassle-free experience. Each harness kit includes all the necessary components to install and run a ReFlex+ Advanced I/O Controller on the vehicle it was designed for. The harness is divided into a few separate pieces for ease of installation and a very clean finished look. Main Harness: This section of the TMS harness kit includes plug and play connections to the vehicles Cam, Crank, and TMAP sensors, 6 injector runs for port injection, the ethanol content sensor connector, and DTM connections for all of the auxiliary inputs and outputs. CAN+ Power Splitter: A clean over-molded compact harness that provides a plug and play connection to your vehicles Body Domain Controller. This section is where the kit will get power, ground, and connect to the CANbus network. Auxiliary Cable Pack: Four additional cables are included to simplify future expansions such as additional sensors, methanol, NOS, fuel pump relays, etc. These 8 ft. cables plug directly into the unused ReFlex+ harness auxiliary ports Aux Out 1/2/3 and Aux In 4 (PSI).
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Genuine BMW Front Right Repair Wiring Set - 61129315900
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Genuine BMW - Corporate Logo
T#:179171
Part#: 61129315900
Ships in 2 Business Days
2% off MSRP $ 809.99

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

$ 793.99 USD
Free Shipping
2% off MSRP
$ 809.99

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

$ 793.99 USD
Free Shipping
Genuine BMW Front Right Repair Wiring Set - Front right wiring repair harness located behind the front bumper
Alternator - 120A
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Genuine BMW - Corporate Logo
T#:6635769
Part#: 12317501690KT
Ships in 2 Business Days
$ 779.99 USD
Free Shipping
$ 779.99 USD
Free Shipping
STARTER
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Genuine BMW - Corporate Logo
T#:6699714
Part#: 12418515900
Ships in 5 Business Days
8% off MSRP $ 847.99

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

$ 775.99 USD
Free Shipping
8% off MSRP
$ 847.99

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

$ 775.99 USD
Free Shipping
Fits these models: E70/E71 40dXdrive 50dXdrive F01 730d 740d 740dX F16 30dx 40dx M50dx


Genuine BMW Starter - E9x M3
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Genuine BMW - Corporate Logo
T#:587726
Part#: 12417843526KT
Ships in 5 Business Days
$ 775.99 USD
Free Shipping
$ 775.99 USD
Free Shipping
Replace your faulty starter with this Genuine BMW starter. Genuine BMW starters are 100% factory tested to assure that it meets or exceeds original equipment specifications. 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: 2008-2011 E90 BMW M3 - Sedan 2008-2013 E92 BMW M3 - Coupe 2008-2013 E93 BMW M3 - Convertible
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Alternator
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We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594100
Part#: 12317561002
In Stock at Vendor
$ 794.99

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

$ 771.99 USD
Free Shipping
$ 771.99 USD
Free Shipping
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.
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Genuine BMW Engine Wiring Harness - E46 M3
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Genuine BMW - Corporate Logo
T#:13097
Part#: 12517831646
Ships in 5 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.

$ 762.99 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.

$ 762.99 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


Wiring Harness Engine Gearbox Module - E46
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Genuine BMW - Corporate Logo
T#:40049
Part#: 12517836378
Ships in 8 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.

$ 762.99 USD
Free Shipping
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.

$ 762.99 USD
Free Shipping


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

Fits BMW Engines including:
S54


Alternator - 150 Amp AL0888N
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:591981
Part#: 12317575873
In Stock at Vendor
$ 782.99

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

$ 760.99 USD
Free Shipping
$ 760.99 USD
Free Shipping
Wiring Harness - Engine Module - Z3
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Genuine BMW - Corporate Logo
T#:39587
Part#: 12511438514
Ships in 8 Business Days
3% off MSRP $ 767.99

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

$ 747.99 USD
Free Shipping
3% off MSRP
$ 767.99

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

$ 747.99 USD
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Genuine BMW ENGINE WIRING HARNESS, ENGIN
Fits BMW Engines including:
M52


Wiring Harness - Engine Module - E46
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Genuine BMW - Corporate Logo
T#:13092
Part#: 12511439991
Ships in 8 Business Days
3% 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.

$ 745.99 USD
Free Shipping
3% 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.

$ 745.99 USD
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Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52

Wiring Harness - Engine Module - E39
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Genuine BMW - Corporate Logo
T#:39592
Part#: 12511439175
Special Order: No Guaranteed ETA
3% 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.

$ 745.99 USD
Free Shipping
3% 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.

$ 745.99 USD
Free Shipping


Genuine BMW Engine Wiring Harness, Engine Module -
This item fits the following BMW Chassis:
E39

Fits BMW Engines including:
M52


Genuine MINI Fuse Box SPEG High - SZT
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Genuine MINI - Corporate Logo
T#:210706
Part#: 61359813622
Ships in 2 Business Days
7% off MSRP $ 796.99

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
7% off MSRP
$ 796.99

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

$ 738.99 USD
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Genuine BMW Fuse Box Speg High - Szt


Mass Air Flow Sensor (MAF)
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Genuine BMW - Corporate Logo
T#:367846
Part#: 13621702078
Ships in 2 Business Days
4% off MSRP $ 767.99

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

$ 733.99 USD
Free Shipping
4% off MSRP
$ 767.99

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

$ 733.99 USD
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The MAF (Mass Air Flow) sensor regulates the fuel flow through the injectors based on the intake air volume. If your vehicle displays a MAF code, it's crucial to replace it promptly to optimize gas mileage and performance. MAF failure often occurs gradually, leading to decreased fuel efficiency and compromised performance. When it fails completely, the vehicle may stutter and stall, entering a limp mode. A simple test involves unplugging the connector before starting the car. If the idle improves compared to previous poor idling, it's a sign that the MAF needs replacement. Neglecting this maintenance can lead to decreased fuel economy, as excessive fuel is injected into the engine without being efficiently burned. Opting for a genuine BMW replacement ensures stock-quality performance, offering your vehicle an efficiency boost.
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OEM Valeo New Alternator - 230amp
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We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:383432
Part#: 12317603782
Ships on Aug 4, 2026
$ 730.99 USD
Free Shipping
$ 730.99 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. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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OEM Valeo Alternator - 185 amp
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We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:376244
Part#: 12317525376
Ships in 1 Business Day
$ 730.23 USD
Free Shipping
$ 730.23 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. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Motiv ReFlex+ Control Unit
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Motiv Motorsports - Corporate Logo
T#:29101684
Part#: 900.1001
In Stock
$ 729.00 USD
Free Shipping on orders $49 and up
The motive ReFlex+ Control Unit is an advanced I/O integration module that allows precise control of aftermarket components and sends data to the factory DME (ECU) via CANbus communication, expanding performance tuning capabilities. This control unit allows for precise control of fuel pumps, methanol injection kits, nitrous kits, boost controllers, relay triggers, port injection systems, flex fuel systems, and more. Supporting sequential port injection for up to eight injectors and real-time monitoring of injectors, this unit is a great choice for precise control of fuel delivery to your engine.
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Genuine BMW Rep. Wiring Harness, Front S - 61129206219
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Genuine BMW - Corporate Logo
T#:139328
Part#: 61129206219
Ships in 8 Business Days
2% off MSRP $ 722.99

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

$ 708.99 USD
Free Shipping
2% off MSRP
$ 722.99

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

$ 708.99 USD
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Genuine BMW Rep. Wiring Harness, Front Sector, Right -
This item fits the following BMW Chassis:
E90,E92,E93

Throttle Position Switch - E34 M5 3.6
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Genuine BMW - Corporate Logo
T#:22440
Part#: 13541710560
Special Order: No Guaranteed ETA
3% off MSRP $ 730.99

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

$ 707.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 730.99

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

$ 707.99 USD
Free Shipping on orders $49 and up
This Genuine BMW throttle valve switch has the round connector. Please check yours to ensure you do not have the rectangular connector. The throttle position switch provides information to the ECU for proper fuel and ignition management for the US spec E34 M5 3.6 Liter.

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:
1991-1993 E34 BMW M5 3.6
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Compact Alternator - E60, E63, E64, E90
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Genuine BMW - Corporate Logo
T#:13088
Part#: 12317802929
Ships in 5 Business Days
8% off MSRP $ 737.99

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

$ 678.99 USD
Free Shipping
8% off MSRP
$ 737.99

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

$ 678.99 USD
Free Shipping


Genuine BMW At-Compact Alternator - 170A
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63,E90

Fits BMW Engines including:
M57,S85


Genuine BMW Battery Cable - Positive - Under-Floor Cable - E60 E61 ...
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Genuine BMW - Corporate Logo
T#:139524
Part#: 61129297278
Ships in 2 Business Days
3% off MSRP $ 700.99

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

$ 677.99 USD
Free Shipping
3% off MSRP
$ 700.99

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

$ 677.99 USD
Free Shipping


Genuine BMW Battery Cable, Positive, Below-Floor - 70 MM Cu

OEM Bosch Remanufactured Alternator - AL9456X - BMW E70 X5 xDrive48i ...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639740
Part#: 12317561002BKT
Ships on Aug 5, 2026
$ 691.99

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

$ 674.99 USD
Free Shipping on orders $49 and up
$ 674.99 USD
Free Shipping on orders $49 and up
*Price includes a refundable $80 Core Charge* 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. 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! ​ Bosch Part Numbers: AL9456X, 0986UR6293 Replaces the following BMW part numbers: 12317533469, 12317561002
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STARTER
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Genuine BMW - Corporate Logo
T#:27438866
Part#: 12415A7E948
Ships in 2 Business Days
8% off MSRP $ 736.99

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

$ 674.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 736.99

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

$ 674.99 USD
Free Shipping on orders $49 and up
Often times, your starter will fail without warning leaving you stranded and unable to start your vehicle. If this is the case, we have your solution.
Genuine BMW Fuse Box - 61148384629 - E85
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:141234
Part#: 61148384629
Ships in 4 Business Days
3% off MSRP $ 692.99

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

$ 669.99 USD
Free Shipping
3% off MSRP
$ 692.99

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

$ 669.99 USD
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Genuine BMW Fuse Box
This item fits the following BMW Chassis:
E85 Z4M,E85 Z4,E86 Z4


OEM Bosch Remanufactured Alternator - AL9445X - E70/71 F01/02 F07/10 ...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:639671
Part#: 12317603782BKT
In Stock at Vendor
$ 674.99

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

$ 657.99 USD
Free Shipping
$ 657.99 USD
Free Shipping
*Price includes a refundable $75 Core Charge* 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. 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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OEM Bosch Remanufactured 180A Alternator - E60 528i/xi, E82/88 128i, ...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:384253
Part#: 12317551256KT
Ships on Jul 28, 2026
$ 635.99

This product was last offered at the strikethrough price on
07-01-2026

$ 634.99 USD
Free Shipping
$ 634.99 USD
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This is a OEM Bosch remanufactured 180 amp alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Bosch Alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested prior to and during remanufacturing to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

A $84 core charge is included in the price. Upon receipt of your rebuildable alternator core, you will be refunded the core charge.  

This item fits the following BMWs:  
E60 BMW 528i/xi
E82/88 BMW 128i
E9X BMW 328i/xi
E70 BMW X5 N52 3.0L (without Adaptive Drive and Four-Zone Climate Control)
E83 BMW X3 N52 3.0L
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Genuine BMW Trunk Wiring Harness - Right - E34 525i M50 530i M60 ...
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Genuine BMW - Corporate Logo
T#:135881
Part#: 61108365702
Ships in 8 Business Days
5% off MSRP $ 653.99

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

$ 623.99 USD
Free Shipping
5% off MSRP
$ 653.99

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

$ 623.99 USD
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Genuine BMW Repair Wiring Set For Trunk Lid/Right -
This item fits the following BMW Chassis:
E34

ReFlex+ Plug-N-Play Harness Kit - Visconti Tuning
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Motiv Motorsports - Corporate Logo
T#:29201087
Part#: 200.1103
Ships in 4 Business Days
$ 615.00 USD
Free Shipping on orders $49 and up
Visconti Tuning teamed up with MOTIV as the first company to bring a plug-and-play harness to the community. After years of success and some of the fastest Supras and BMWs in the world using the harness, Visconti Tuning has improved upon an already fantastic offering.
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Genuine BMW E9X Rep. Wiring Harness, Strut S - 61129206018
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Genuine BMW - Corporate Logo
T#:139321
Part#: 61129206018
Ships in 8 Business Days
2% off MSRP $ 619.99

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

$ 607.99 USD
Free Shipping
2% off MSRP
$ 619.99

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

$ 607.99 USD
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Enhance the electrical system of your BMW with the Genuine BMW E9X Rep. Wiring Harness, Strut S - 61129206018. This genuine BMW part ensures optimal performance and reliability, providing a seamless replacement for your vehicle's wiring harness.

  • Genuine BMW part for guaranteed compatibility and reliability
  • Designed to meet BMW's strict quality standards
  • Ensures proper electrical connections and functionality
  • Easy installation with precise fitment


Genuine BMW Rep. Wiring Harness, Strut Sector, Left -
This item fits the following BMW Chassis:
E82,E90,E92,E93

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EV Charger Wallbox - i3, i8, iX
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:22295086
Part#: 61905A1E1B3
In Stock
1% off MSRP $ 600.00

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

$ 596.99 USD
1% off MSRP
$ 600.00

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

$ 596.99 USD