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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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Race German Fuse Replacement Kit

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T#:2602229

Part#: E30FUSEKIT

Ships in 2 Business Days

$ 35.99 USD

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$ 35.99 USD

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Complete set of fuses from OE BMW supplier for direct replacement of blown or mismatched fuses. Kit includes A complete set of new OEM fuses Extra fuses Fuse puller

Race German C101 Diagnosis Plug Firewall Bracket - E30

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T#:6827884

Part#: C101-HOLDER

Ships in 9 Business Days

$ 44.99 USD

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$ 44.99 USD

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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. BMW's original C101 bracket which connects to the firewall and holds the diagnosis port unfortunately over time becomes heat soaked and brittle. The OEM bracket, which is no longer available, also features a flawed hinge design that easily wears and breaks. Race German has devised a solution to this issue and developed a new bracket! This heavy duty C101 firewall bracket is completely plug and play. These brackets are CAD designed and feature a two piece design with stainless steel hardware.

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Race German Fuse Replacement Kit

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:2602224

Part#: E46FUSEKIT

Ships in 2 Business Days

$ 47.99 USD

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$ 47.99 USD

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Complete set of fuses from OE BMW supplier for direct replacement of blown or mismatched fuses. Kit includes A complete set of new OEM fuses Extra fuses Fuse puller

Race German Fuse Replacement Kit

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:2602226

Part#: E36FUSEKIT

In Stock

$ 41.99 USD

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$ 41.99 USD

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Complete set of fuses from OE BMW supplier for direct replacement of blown or mismatched fuses. Kit includes A complete set of new OEM fuses Extra fuses Fuse puller

Alternator Pulley - E82 E90 E92 E60

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We Price Match - Give Us A Call or Chat!

T#:19332

Part#: 12317570152

Ships in 1-2 days

$ 66.99 USD

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$ 66.99 USD

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This OEM alternator pulley has a ratcheting mechanism inside that can wear out, causing a rattling sound. This mechanism allows the alternator to freewheel to a degree. This is only for the Valeo brand alternator/

This item fits the following BMWs:
2008+ E82 BMW 128i with N51 engine
2006-2007 E90 BMW 325i 325xi 330i 330xi - Sedan
2006-2007 E90 BMW 328i 328xi - Sedan with N51 engine
2006-2007 E91 BMW 325xi - Wagon
2007-2007 E92 BMW 328i 328xi 328i xDrive - Coupe with N51 engine
2006-2007 E60 BMW 525i 525xi 530i 530xi

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

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:51813310

Part#: VTT-FAB-HC

Ships on Nov 13, 2026

$ 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.

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

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:51672717

Part#: VTT-MAP-HARNESS

Ships on Nov 13, 2026

$ 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.

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

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:52129729

Part#: VTT56BSENSKIT64

Ships on Nov 13, 2026

$ 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.

Vargas Turbo Technologies USB To Serial For HPFP Controller - N54-USB...

2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:51778112

Part#: N54-USB-SERIAL-H

Ships on Nov 13, 2026

$ 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.

OEM INA Alternator Pulley - Overrunning Type - E82, E88, E9x, F10, F2...

Earn 5% back in Turner Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

T#:42167226

Part#: EA0141

Back Ordered

$ 71.99 USD

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$ 71.99 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.

Accessory Drive Belt Kit - E34, E83

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T#:42167237

Part#: FB0198K

Back Ordered

$ 166.99 USD

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$ 166.99 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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OEM INA Alternator Pulley - E60, E90

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T#:42167235

Part#: EA0202

Back Ordered

$ 46.99

This product was last offered at the strikethrough price on
06-19-2026

$ 33.99 USD

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$ 33.99 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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