BMW Electrical Sensors, Switches, & Relays

ReFlex Lite: Advanced Sequential Injector Controller - V8

T#:29234300

Part#: 910.1012

Ships in 4 Business Days

$ 499.00 USD

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$ 499.00 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 v-8 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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Alternator - 150 Amp AL0888N

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

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

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$ 760.99 USD

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ReFlex Lite Injector Harness - V8

T#:29234314

Part#: 900.1014

Ships in 4 Business Days

$ 295.00 USD

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$ 295.00 USD

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Required when installing a Motiv ReFlex Lite to your V8 powered BMW! Includes x8 injector leads and direct, plug-in adapter to the ReFlex Lite Control Unit!

Crankshaft Sensor O-Ring (18 X 1.2 Mm)

T#:13233505

Part#: 12141402705

In Stock at Vendor

$ 1.49 USD

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$ 1.49 USD

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This O-Ring can sometimes leak at the bottom of your engine and need to be replaced. Fits around the head of the lower crankshaft sensor and provides a connection point.

Brake Switch - 4 Prong

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:373217

Part#: 61318360417

Back Ordered

$ 15.52 USD

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$ 15.52 USD

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Located on the brake pedal, this switch is vital to your brake light function. In the event that your vehicle's brake lights are not working and simultaneously showing a "brake light circuit failure", you should replace this part.

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URO Coolant Level Sensor - E24 E30 E32 E34

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:593414

Part#: 61311378320

Ships in 1 Business Day

$ 17.99 USD

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$ 17.99 USD

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This sensor is critical in keeping tabs of your cooling system's health.

Hella Crankshaft Position Sensor - E36

T#:14747

Part#: 12141247259

In Stock at Vendor

$ 89.99

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

$ 87.99 USD

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$ 87.99 USD

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OEM BMW PULSE GENERATOR

Genuine BMW Knock Sensor - S54 3.2L

T#:38666

Part#: 12147839167

In Stock at Vendor

$ 149.99

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

$ 89.99 USD

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$ 89.99 USD

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

Fits BMW Engines including:
S54

URO Camshaft Position Sensor - E90, E70 - M57

T#:55821688

Part#: 13627792256

Ships in 1 Business Day

$ 17.99 USD

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$ 17.99 USD

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This URO sensor is built to withstand the intense heat cycles of the BMW engine bay, offering a dependable, budget-friendly solution to restore peak engine efficiency. Designed as a direct swap for the factory unit

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BMW Alternator - SEG Automotive 0121.715.118

T#:54851991

Part#: 12317560985

In Stock at Vendor

$ 1,049.99

This product was last offered at the strikethrough price on
07-16-2026

$ 949.99 USD

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$ 949.99 USD

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Battery Tender Plus Advanced Battery Charging System

T#:49892371

Part#: BTT0210128

Back Ordered

$ 69.99 USD

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$ 69.99 USD

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Oil Level Sensor

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:37858361

Part#: 12611406609

Ships in 1 Business Day

$ 124.99 USD

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$ 124.99 USD

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Is your oil level light on even though the oil level is fine? The issue may be a faulty oil level sensor, which monitors your engine’s oil level.

Alternator Bracket Bushing - Priced Each

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:592985

Part#: 12311715491

Ships in 1 Business Day

$ 2.99 USD

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$ 2.99 USD

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Rubber bushing, placed in the top portion of the alternator support bracket. Each vehicle requires two.

URO Camshaft Position Sensor - BMW E38 E39 E53 E52 M62 4.4L 4.6L 4.8L...

2X Entries For Our G87 M2 Sweepstakes!

T#:43446144

Part#: 12147539166

Ships in 1 Business Day

$ 19.99 USD

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$ 19.99 USD

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When this sensor fails, it will become impossible to start your car, leaving you stranded. Get your BMW back up and running with this brand sensor from URO.

AUTOTECKNIC Dry Carbon Fiber Battery Terminal Cover - G87 M2 ...

T#:21012623

Part#: ATK-BM-0420-G87

Ships in 7 Business Days

$ 495.00 USD

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$ 495.00 USD

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The boldly styled G87 already touts carbon features but carbon fiber is not very often displayed in the engine bay. If you are looking to give your engine bay some carbon spark, AUTOTECKNIC introduces you to their dry carbon battery terminal cover to beautify your engine bay and bring a smile to your face every time you open the hood of your S58 monster! Made from high-quality carbon, this product is sure to stand the test of time!

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ReFlex+ Plug-N-Play Harness Kit - Visconti Tuning

T#:29201087

Part#: 200.1103

Ships in 4 Business Days

$ 615.00 USD

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$ 615.00 USD

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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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Alternator

We Price Match - Give Us A Call or Chat!

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

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$ 771.99 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.

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OEM Bosch Starter Relay - E21 320i

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T#:583822

Part#: 61311243207

In Stock at Vendor

$ 4.99 USD

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$ 4.99 USD

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This is a brand new starter relay from OEM supplier Bosch. If you have replaced your starter and have ruled out every other issue, this relay could restore your starters operation and get your car back up and running.

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Hitachi Engine Crankshaft Position Sensor - BMW F2X F3X

T#:48850074

Part#: 13627582842

Ships in 6 Business Days

$ 184.99 USD

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$ 184.99 USD

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Engine cranks but doesn't start? This sensor is often the issue.

BMW Alternator - SEG Automotive 0124.515.223

T#:54851980

Part#: 12317519618

In Stock at Vendor

$ 503.99

This product was last offered at the strikethrough price on
07-16-2026

$ 452.99 USD

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$ 452.99 USD

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MINI Alternator - SEG Automotive 0125.711.078

T#:54851993

Part#: 12317613445

In Stock at Vendor

$ 564.99

This product was last offered at the strikethrough price on
07-16-2026

$ 507.99 USD

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$ 507.99 USD

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Hitachi Camshaft Position Sensor - BMW E9X F3X F8X N20 N52 N55 S55 ...

T#:48815454

Part#: 13627525014

Ships in 6 Business Days

$ 40.00 USD

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$ 40.00 USD

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The camshaft position sensor communicates the position of the camshaft to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the cam position sensor.

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Temperature Sensor

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:29898445

Part#: 13621362599

In Stock at Vendor

$ 283.99

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

$ 265.99 USD

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$ 265.99 USD

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Genuine BMW Temperature-Time Switch

Denso Starter Motor - BMW N55 S55 3.0L

T#:40004863

Part#: 12417631559

In Stock at Vendor

$ 461.99

This product was last offered at the strikethrough price on
05-04-2026

$ 390.99 USD

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$ 390.99 USD

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If your car won't turn over, there is a good chance your starter is shot. Denso's OEM starter is a high quality replacement that will give you peace of mind thanks to its long life-span.

BMW Alternator - SEG Automotive 0124.525.588

T#:54851984

Part#: 12317541694

In Stock at Vendor

$ 521.99

This product was last offered at the strikethrough price on
07-16-2026

$ 467.99 USD

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$ 467.99 USD

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Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54

T#:48850072

Part#: 12147539165

In Stock at Vendor

$ 41.99 USD

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$ 41.99 USD

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A bad cam sensor can cause a variety of problems from hard starting to stalling at low speeds. Cam sensor replacement has been known to cure many drivabilty issues. Uses O-ring # 12 141 748 398 (not included)

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MINI Alternator - SEG Automotive 0124.325.157

T#:54851988

Part#: 12317550319

In Stock at Vendor

$ 473.99

This product was last offered at the strikethrough price on
07-16-2026

$ 424.99 USD

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$ 424.99 USD

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Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...

T#:52129729

Part#: VTT56BSENSKIT64

Ships in 10 Business Days

$ 209.99 USD

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$ 209.99 USD

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The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.

Hitachi Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

T#:48850055

Part#: 12147518628

Ships in 2 Business Days

$ 71.99 USD

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$ 71.99 USD

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The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance. Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.

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Mishimoto Ignition Coil - Single - BMW M54, N20, N52, N54, N55, N62, ...

T#:51075090

Part#: MMIG-BMW-02

Ships in 3 Business Days

$ 72.99 USD

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$ 72.99 USD

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The Mishimoto BMW Ignition Coil is built to handle the intense heat cycles found in BMW’s modern turbocharged and naturally aspirated engines.

Battery Cable - With Pole

T#:54388517

Part#: 61129259425

In Stock at Vendor

$ 126.99 USD

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$ 126.99 USD

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On the track or on the street, your BMW’s electrical architecture demands absolute consistency. A degraded positive battery cable introduces unwanted resistance, leading to weak starts, alternator strain, and erratic module behavior. When it’s time to replace a compromised factory cable, you don’t need over-hyped marketing—you need a part that fits precisely and restores factory grid integrity.

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Hitachi Engine Camshaft Position Sensor - BMW S63M N63B/N63M/N63R S68...

T#:48850059

Part#: 13628697982

Ships in 6 Business Days

$ 48.99 USD

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$ 48.99 USD

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The camshaft position sensor communicates the position of the camshaft to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the cam position sensor.

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Hitachi Engine Crankshaft Position Sensor - BMW N52 N54 S85 S65 S63 ...

T#:48815471

Part#: 13627525015

Ships in 6 Business Days

$ 66.99 USD

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$ 66.99 USD

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The crankshaft position sensor transmits the crankshaft's position to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the crank position sensor.

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Hitachi Crankshaft Sensor - BMW B46 B48 B58

T#:48850081

Part#: 13627806782

Ships in 6 Business Days

$ 81.99 USD

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$ 81.99 USD

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Tells the computer whether the timing is correct in the engine.

Walker MAP Sensor - BMW N20 N26 S55 S63

T#:39059258

Part#: 13627843531

In Stock at Vendor

$ 163.99

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

$ 135.99 USD

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$ 135.99 USD

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This is a replacement Manifold Absolute Pressure sensor Located on the charge air cooler. The MAP controls the amount of fuel that goes through the injectors based on the pressure of air at the intake manifold. If your vehicle is giving you a MAP code, replace it immediately to ensure you get the best gas mileage and performance. It is common for this part to fail slowly and cause poor fuel mileage and hampered performance. When it fails, the vehicle will stutter and stall as it falls into a limp mode. One way to check if your MAP is bad is to unplug the connector before starting your car. If it idles well (compared to a previous poor idle), your MAP sensor likely needs to be replaced. If you let this maintenance part go, your fuel economy will suffer as too much fuel is going into the engine and not being burned. A great way to give your vehicle an efficiency boost.

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Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...

T#:51672717

Part#: VTT-MAP-HARNESS

Ships in 10 Business Days

$ 59.99 USD

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$ 59.99 USD

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As part of the VTT-FAB fabrication line, this extension harness is designed for builders and tuners who need flexibility.

BMW Starter - SEG Automotive 0001.108.460

T#:55857741

Part#: 12417610344

In Stock at Vendor

$ 368.99

This product was last offered at the strikethrough price on
07-16-2026

$ 330.99 USD

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$ 330.99 USD

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Vargas Coolant Level Extension Harness - BMW B48/B58/S58

T#:51813310

Part#: VTT-FAB-HC

Ships in 10 Business Days

$ 49.99 USD

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$ 49.99 USD

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Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.

Oil Pressure Switch

T#:45449401

Part#: 021919081D

Ships in 1 Business Day

$ 4.50 USD

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$ 4.50 USD

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Make sure your vehicle is reading its oil pressure correctly with a new oil pressure switch.

OEM Bosch Remanufactured Alternator - 180 Amp - E70 X5 3.0si N52 3.0L...

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:638550

Part#: 12317560986-14KT

In Stock at Vendor

$ 1,097.99 USD

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$ 1,097.99 USD

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Replace your dead alternator with this remanufactured unit and make sure your battery is being charged properly. When doing any sort of repair or maintenance there is no replacement for original parts. Turner Motorsport carries the OEM Bosch brand with pride and has the parts you need to complete your next project with confidence. Includes a $75.00 core charge to be refunded after we receive your refundable core.

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Remanufactured Starter Motor

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T#:596907

Part#: 12417501738

In Stock at Vendor

$ 297.97 USD

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$ 297.97 USD

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If your starter has died and your car will no longer turner over, Bosch's replacement unit is the perfect high quality replacement. OEM replacement for BMW part # 12417501738.

Vargas USB To Serial For HPFP Controller - BMW N54

T#:51778112

Part#: N54-USB-SERIAL-H

Ships in 10 Business Days

$ 37.99 USD

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$ 37.99 USD

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Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.

Alternator - 220 Amp

We Price Match - Give Us A Call or Chat!

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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Hitachi Voltage Regulator - BMW E88 N52

T#:48815477

Part#: 12317550469

Ships in 6 Business Days

$ 79.99 USD

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$ 79.99 USD

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Supplies power to your car's electronics and recharges the battery.

Genuine BMW Wiring Harness

T#:137292

Part#: 61119182329

Ships in 1-2 days

$ 506.99 USD

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$ 506.99 USD

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Genuine BMW Wiring Harness, Side View Camera -
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83

Genuine MINI Voltage Regulator Bosch - 12317577245

T#:39017

Part#: 12317577245

Ships in 3 Business Days

7% off MSRP $ 200.99

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

$ 186.99 USD

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7% off MSRP

$ 200.99

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

$ 186.99 USD

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Genuine MINI VOLTAGE REGULATOR
Fits BMW Engines including:
N12,N14,N16,N18

Genuine MINI Camshaft Sensor

T#:14759

Part#: 12141485845

In Stock

8% off MSRP $ 188.30

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

$ 173.21 USD

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8% off MSRP

$ 188.30

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

$ 173.21 USD

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Genuine MINI PULSE GENERATOR, CAMSHAFT.--

This item fits the following BMWs:
MINI Cooper - Mini Cooper, Mini Cooper Convt, Mini Cooper S, Mini Cooper S Convt

--. Fits BMW Engines including:
W10,W11

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