BMW Electrical Sensors, Switches, & Relays

New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

T#:25042544

Part#: 12311744567

In Stock

Sale - Save 15% $ 219.99

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

$ 186.99 USD

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$ 219.99

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

$ 186.99 USD

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New Alternator - 180 Amp

T#:26438187

Part#: 12317558220

In Stock

Sale - Save 10% $ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

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$ 294.99

This product was last offered at the strikethrough price on
06-30-2026

$ 265.49 USD

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Crankshaft Position Sensor - E36 (OBDI), E34 M50/S50

T#:579816

Part#: 52380

In Stock

Sale - Save 20% $ 48.99

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

$ 39.19 USD

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Sale - Save 20%

$ 48.99

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

$ 39.19 USD

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Common cause of misfires, poor fuel economy, or a crank no start situation. If your M50 or S50 has any of these symptoms, this crankshaft position sensor from Bavarian Autosport is a likely fix.

Alternator - 180amp

T#:26438185

Part#: 12317837981

In Stock

Sale - Save 15% $ 304.99

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

$ 259.24 USD

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Sale - Save 15%

$ 304.99

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

$ 259.24 USD

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Bav Auto Camshaft Position Sensor - BMW E36 E39 Z3 M52 S52

T#:639841

Part#: 12141703221

In Stock

Sale - Save 20% $ 37.99

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

$ 30.39 USD

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Sale - Save 20%

$ 37.99

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

$ 30.39 USD

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Faulty camshaft sensors can lead to a number of issues such as hard starts, stalling at low speeds, and check engine (SES) lights. Restore your BMW's smooth operation and reliability by replacing it with a high-quality camshaft sensor from Bav Auto! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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New Alternator - 120A

T#:25042543

Part#: 12317501690

In Stock

Sale - Save 20% $ 211.99

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

$ 169.59 USD

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Sale - Save 20%

$ 211.99

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

$ 169.59 USD

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Alternator - 120amp

T#:25042542

Part#: 12317831436

Ships on Sep 29, 2026

Sale - Save 20% $ 222.99

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

$ 178.39 USD

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Sale - Save 20%

$ 222.99

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

$ 178.39 USD

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Bav Auto Camshaft Position Sensor - E38 740i 740iL 750iL

T#:639840

Part#: 12141742185

Back Ordered

Sale - Save 15% $ 66.99

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

$ 56.94 USD

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Sale - Save 15%

$ 66.99

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

$ 56.94 USD

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Faulty camshaft sensors can lead to a number of issues such as hard starts, stalling at low speeds, and check engine (SES) lights. Restore your BMW's smooth operation and reliability by replacing it with a high-quality camshaft sensor from Bav Auto! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Genuine BMW Terminal Socket - Mcon 2.8 - Multiple BMWs

T#:40627

Part#: 12527567482

In Stock

Sale - Save 50% $ 1.99

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

$ 0.99 USD

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$ 1.99

This product was last offered at the strikethrough price on
05-02-2026

$ 0.99 USD

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Used in a wide variety of BMW connectors, these terminal sockets can come in handy when working on your wiring components.

Genuine BMW Earth Strap - 33346785460 - F01,F06,F10,F12,F13

T#:60490

Part#: 33346785460

In Stock

Sale - Save 26% $ 43.99

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

$ 32.65 USD

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$ 43.99

This product was last offered at the strikethrough price on
05-02-2026

$ 32.65 USD

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Genuine BMW Earth Strap -
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13

Genuine BMW Wiring Harness, Actuator Con - 61129241328

T#:139452

Part#: 61129241328

In Stock

Sale - Save 64% $ 316.99

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

$ 114.00 USD

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Sale - Save 64%

$ 316.99

This product was last offered at the strikethrough price on
05-02-2026

$ 114.00 USD

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Genuine BMW Wiring Harness, Actuator Control Module -
This item fits the following BMW Chassis:
F10,F12,F13

Cover Base B+ - E53

T#:40190

Part#: 12521439677

In Stock

Sale - Save 29% $ 10.39

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

$ 7.41 USD

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$ 10.39

This product was last offered at the strikethrough price on
02-23-2026

$ 7.41 USD

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Genuine BMW Cover Base B+
This item fits the following BMW Chassis:
E53 48IS,E53 X5 X5

Fits BMW Engines including:
M54,M62,N62

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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Battery Cable - With Pole

T#:54388517

Part#: 61129259425

Ships in 3 Business Days

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

T#:51672717

Part#: VTT-MAP-HARNESS

Ships on Aug 31, 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 Coolant Level Extension Harness - BMW B48/B58/S58

T#:51813310

Part#: VTT-FAB-HC

Ships on Aug 31, 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 Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...

T#:52129729

Part#: VTT56BSENSKIT64

Ships on Aug 31, 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 USB To Serial For HPFP Controller - BMW N54

T#:51778112

Part#: N54-USB-SERIAL-H

Ships on Aug 31, 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.

Genuine BMW Battery Management Electronics Control Module - BMW G09 G...

T#:55785659

Part#: 61278882634

Ships in 1-2 days

3% off MSRP $ 1,572.99

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

$ 1,532.99 USD

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3% off MSRP

$ 1,572.99

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

$ 1,532.99 USD

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When this critical high-voltage module succumbs to internal hardware failure or water intrusion, your PHEV BMW will instantly lock out its charging capabilities and disable all electric driving modes to protect the vehicle's complex electrical grid. Don't let a failed module keep your hybrid system sidelined. This Genuine BMW replacement unit is the exact factory-spec computer required to replace your corrupted original, fully restoring accurate electric range reporting, optimal cell balancing, and crucial factory safety parameters to your high-voltage accumulator pack.

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Terminal Repair Kit

T#:55281756

Part#: 61138TRKT

Ships in 3 Business Days

$ 42.36 USD

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$ 42.36 USD

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This terminal repair kit is the ideal companion for refreshing damaged wiring pins and keeping your chassis' electrical system functioning flawlessly.

Ground Cable - B48/S58

T#:50311456

Part#: 12425B586B0

Ships in 8 Business Days

3% off MSRP $ 60.99

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

$ 58.99 USD

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3% off MSRP

$ 60.99

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

$ 58.99 USD

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Your vehicle’s ground strap plays a vital role in maintaining a healthy electrical system. Exposure to heat, corrosion, and constant vibration can degrade the strap over time, resulting in weak or inconsistent electrical connections. When the ground strap begins to fail, symptoms can include hard starting, flickering or dim lights, warning messages, erratic sensor behavior, or complete no-start situations. Replacing a worn ground strap restores proper current flow, protects sensitive electronics, and keeps your engine and electrical systems operating reliably.

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Wire Pinning Kit - MLK 1.2 Female Jack

T#:55281746

Part#: 125275WRKT

Ships in 9 Business Days

$ 37.40 USD

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$ 37.40 USD

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This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.

RP BASE CONTROL UNIT DME

T#:56869523

Part#: 12145B94D28

Ships in 8 Business Days

3% off MSRP $ 3,430.99

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

$ 3,321.99 USD

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3% off MSRP

$ 3,430.99

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

$ 3,321.99 USD

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Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

T#:639833

Part#: 13621433076

In Stock

Sale - Save 20% $ 14.99

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

$ 11.99 USD

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Sale - Save 20%

$ 14.99

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

$ 11.99 USD

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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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BMW Electrical Sensors, Switches, & Relays

Sub-Categories

New Alternator - 140amp | BMW E36 E34 M50 M52 S50 S52

New Alternator - 180 Amp

Crankshaft Position Sensor - E36 (OBDI), E34 M50/S50

Alternator - 180amp

Bav Auto Camshaft Position Sensor - BMW E36 E39 Z3 M52 S52

New Alternator - 120A

Alternator - 120amp

Bav Auto Camshaft Position Sensor - E38 740i 740iL 750iL

Genuine BMW Terminal Socket - Mcon 2.8 - Multiple BMWs

Genuine BMW Earth Strap - 33346785460 - F01,F06,F10,F12,F13

Genuine BMW Wiring Harness, Actuator Con - 61129241328

Cover Base B+ - E53

Battery Tender Plus Advanced Battery Charging System

Battery Cable - With Pole

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

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

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

Vargas USB To Serial For HPFP Controller - BMW N54

Genuine BMW Battery Management Electronics Control Module - BMW G09 G...

Terminal Repair Kit

Ground Cable - B48/S58

Wire Pinning Kit - MLK 1.2 Female Jack

RP BASE CONTROL UNIT DME

Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02

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