BMW Electrical Sensors, Switches, & Relays for BMW 3 Series G20 (2019+)

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:

Genuine BMW - Corporate Logo
T#:5390
Part#: 12631742690
In Stock
7% off MSRP $ 24.65

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

$ 22.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 24.65

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

$ 22.99 USD
Free Shipping on orders $49 and up
This relay is used for the SMG system on the E46 M3 and various applications including secondary air systems on other BMW's. If you find that your SMG-equipped E46 M3 is not starting, this is one of the first places to check as it controls power to the hydraulic unit (the car will not start without hydraulics). Buy one to fix the issue and buy a second so you're not stranded in the future!
Show More Show Less
Genuine BMW - Corporate Logo
T#:14972
Part#: 13627580635
Ships in 4 Business Days
9% off MSRP $ 66.99

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

$ 60.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 66.99

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

$ 60.99 USD
Free Shipping on orders $49 and up


Genuine BMW Temperature Sensor Water/Oil -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83,I01 i3,I12 i8

Fits BMW Engines including:
N55,S55

Show More Show Less
Genuine BMW - Corporate Logo
T#:137569
Part#: 61120142318
Ships in 4 Business Days
7% off MSRP $ 44.99

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

$ 41.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 44.99

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

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Optical Waveguide - L=7000Mm Fiber Optic Cable
This item fits the following BMW Chassis:
E60 M5,E63 M6,E70 X5M,E71 X6M,E85 Z4M,E63,E65,E70 X5,E71 X6,E85 Z4,E86 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F25 X3,F26 X4,F30,F31

Show More Show Less

Genuine BMW - Corporate Logo
T#:207094
Part#: 61132359996
In Stock
Sale - Save 8% $ 29.99

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

$ 27.74 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 29.99

This product was last offered at the strikethrough price on
06-15-2026

$ 27.74 USD
Free Shipping on orders $49 and up


Genuine BMW Rep. Kit For Socket Housing - 4 Pol.
This item fits the following BMW Chassis:
E46 M3,E46,E85 Z4,E90,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83


Hella - Corporate Logo
T#:592707
Part#: 2768551
In Stock
$ 30.99 USD
Free Shipping on orders $49 and up
Disc Type High-Tone, 12 V, 400 Hz with Bracket
Genuine BMW - Corporate Logo
T#:539288
Part#: 12618647488
Ships in 4 Business Days
Sale - Save 6% $ 59.99

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

$ 56.69 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 59.99

This product was last offered at the strikethrough price on
06-25-2026

$ 56.69 USD
Free Shipping on orders $49 and up

Hella - Corporate Logo
T#:590880
Part#: 2768082
In Stock
$ 36.99 USD
Free Shipping on orders $49 and up
Disc Type Low-Tone, 12 V, 335 Hz with Bracket
Genuine BMW - Corporate Logo
T#:29334056
Part#: 12615A740A2KT
In Stock
$ 279.99 USD
Free Shipping on orders $49 and up
$ 279.99 USD
Free Shipping on orders $49 and up
This kit includes a new Genuine BMW Oil Level Sensor and three hex nuts to mount the new sensor to the oil pan. If the mounting stud bolts are also damaged, you will need 3 of BMW part number 07129904544. BMW has eliminated the dipstick in favor of electric oil level sensors located in the bottom of the oil pan. These sensors are designed to monitor both the oil level and oil condition, alerting you when the oil level is too low or the quality of the oil has dropped and should be changed. Unfortunately, like many BMW electrical components, these sensors are prone to failure and can result in improper level and quality readings. If you recently changed your oil and know the readings are incorrect, there is a good chance your sensor has failed. We recommend replacing your oil level sensor, in this case, to ensure you are always seeing proper levels and oil condition. Luckily, this sensor is easy to replace and could save you from potentially catastrophic issues later on.
Show More Show Less

Genuine BMW - Corporate Logo
T#:215615
Part#: 61132359997
In Stock
4% off MSRP $ 26.99

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

$ 25.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 26.99

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

$ 25.99 USD
Free Shipping on orders $49 and up
This is Genuine BMW 3 pin electrical socket repair kit.

Hella - Corporate Logo
T#:592708
Part#: 3001651
In Stock at Vendor
$ 143.99

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

$ 139.99 USD
Free Shipping on orders $49 and up
$ 139.99 USD
Free Shipping on orders $49 and up
Get noticed with this air horn kit from Hella!
Genuine BMW - Corporate Logo
T#:375994
Part#: 65816936953
Ships in 3 Business Days
6% off MSRP $ 71.99

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

$ 67.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 71.99

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

$ 67.99 USD
Free Shipping on orders $49 and up
Common fix for incorrect OBC temperature readings
Genuine BMW - Corporate Logo
T#:527127
Part#: 11148605104
Ships in 4 Business Days
5% off MSRP $ 59.99

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

$ 56.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 59.99

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

$ 56.99 USD
Free Shipping on orders $49 and up


ECS - Corporate Logo
T#:40072446
Part#: LK2M
In Stock
Sale - Save 29% $ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
Free Shipping on orders $49 and up
Sale - Save 29%
$ 6.99

This product was last offered at the strikethrough price on
06-14-2026

$ 4.94 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

Show More Show Less
Genuine BMW - Corporate Logo
T#:40627
Part#: 12527567482
In Stock
Sale - Save 55% $ 1.99

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

$ 0.89 USD
Free Shipping on orders $49 and up
Sale - Save 55%
$ 1.99

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

$ 0.89 USD
Free Shipping on orders $49 and up
Used in a wide variety of BMW connectors, these terminal sockets can come in handy when working on your wiring components.
Genuine BMW - Corporate Logo
T#:42873702
Part#: 61135B70D27
In Stock
Sale - Save 13% $ 11.99

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

$ 10.49 USD
Free Shipping on orders $49 and up
Sale - Save 13%
$ 11.99

This product was last offered at the strikethrough price on
06-25-2026

$ 10.49 USD
Free Shipping on orders $49 and up

Genuine BMW - Corporate Logo
T#:139551
Part#: 61130005197
In Stock
$ 3.99

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

$ 3.68 USD
Free Shipping on orders $49 and up
$ 3.68 USD
Free Shipping on orders $49 and up
Perfect for repairing damaged wiring in multiple locations of your BMW.

Hella - Corporate Logo
T#:592718
Part#: 965400001
In Stock
$ 14.99 USD
Free Shipping on orders $49 and up
12V 30A SPST relay with bracket
Genuine BMW - Corporate Logo
T#:10437
Part#: 61130005199
In Stock
13% off MSRP $ 7.99

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

$ 6.99 USD
Free Shipping on orders $49 and up
13% off MSRP
$ 7.99

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

$ 6.99 USD
Free Shipping on orders $49 and up
Used in a variety of locations throughout your BMW, this perfect for repair damage electrical connection contacts.

Genuine BMW - Corporate Logo
T#:208202
Part#: 61138373632
In Stock
Sale - Save 9% $ 18.99

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

$ 17.28 USD
Free Shipping on orders $49 and up
Sale - Save 9%
$ 18.99

This product was last offered at the strikethrough price on
06-15-2026

$ 17.28 USD
Free Shipping on orders $49 and up


Genuine BMW Socket Housing, Uncloded - 12 Pol.

Genuine BMW - Corporate Logo
T#:528834
Part#: 61132359992
Ships in 3 Business Days
Sale - Save 6% $ 13.99

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

$ 13.12 USD
Free Shipping on orders $49 and up
Sale - Save 6%
$ 13.99

This product was last offered at the strikethrough price on
06-25-2026

$ 13.12 USD
Free Shipping on orders $49 and up

Hella - Corporate Logo
T#:28869559
Part#: 7424001
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up
Universal fit. Not direct fit.

Genuine BMW - Corporate Logo
T#:29334016
Part#: 12615A740A2
In Stock
8% off MSRP $ 298.99

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

$ 273.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 298.99

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

$ 273.99 USD
Free Shipping on orders $49 and up
BMW has eliminated the dipstick in favor of electric oil level sensors located in the bottom of the oil pan. These sensors are designed to monitor both the oil level and oil condition, alerting you when the oil level is too low or the quality of the oil has dropped and should be changed. Unfortunately, like many BMW electrical components, these sensors are prone to failure and can result in improper level and quality readings. If you recently changed your oil and know the readings are incorrect, there is a good chance your sensor has failed. We recommend replacing your oil level sensor, in this case, to ensure you are always seeing proper levels and oil condition. Luckily, this sensor is easy to replace and could save you from potentially catastrophic issues later on.
Show More Show Less
Hella - Corporate Logo
T#:592716
Part#: 7424011
In Stock
$ 17.99 USD
Free Shipping on orders $49 and up

Upgrade the sound of your BMW or MINI with the Hella Horn - High-Tone. This high-quality horn delivers a powerful and attention-grabbing sound, enhancing safety on the road. Designed for easy installation, it provides a quick and effective way to improve the audible presence of your vehicle.

  • Powerful and attention-grabbing sound
  • Enhances safety on the road
  • Easy installation for convenience
  • Compatible with BMW and MINI models
  • High-quality construction for durability

Enhance the audible presence of your BMW or MINI with the Hella Horn - High-Tone, ensuring you're heard when it matters most.

Show More Show Less
Genuine BMW - Corporate Logo
T#:543048
Part#: 61139232674
In Stock
$ 1.99 USD
Free Shipping on orders $49 and up
A socket contact in the context of BMW refers to an electrical connector component utilized in BMW vehicles. These socket contacts are specifically engineered to establish electrical connections within the car's wiring and electronic systems. They play a vital role in ensuring the proper functioning of various electrical components, spanning from the vehicle's engine to its interior features. BMW socket contacts are meticulously designed to align with the brand's stringent criteria for quality and dependability, underscoring their significance in upholding the electrical systems and overall performance of the vehicle.
Show More Show Less


Genuine BMW - Corporate Logo
T#:29334012
Part#: 12615A740A3
Ships in 4 Business Days
8% off MSRP $ 358.99

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

$ 328.99 USD
Free Shipping on orders $49 and up
8% off MSRP
$ 358.99

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

$ 328.99 USD
Free Shipping on orders $49 and up
BMW has eliminated the dipstick in favor of electric oil level sensors located in the bottom of the oil pan. These sensors are designed to monitor both the oil level and oil condition, alerting you when the oil level is too low or the quality of the oil has dropped and should be changed. Unfortunately, like many BMW electrical components, these sensors are prone to failure and can result in improper level and quality readings. If you recently changed your oil and know the readings are incorrect, there is a good chance your sensor has failed. We recommend replacing your oil level sensor, in this case, to ensure you are always seeing proper levels and oil condition. Luckily, this sensor is easy to replace and could save you from potentially catastrophic issues later on.
Show More Show Less
Genuine BMW - Corporate Logo
T#:21280
Part#: 61138352304
Ships in 6 Business Days
3% off MSRP $ 28.99

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

$ 27.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 28.99

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

$ 27.99 USD
Free Shipping on orders $49 and up


Genuine BMW Universal Socket Housing, Uncoded - 3 Pol.
This item fits the following BMW Chassis:
E36 M3,E34 M5,E39 M5,E60 M5,E46 M3,E70 X5M,E71 X6M,E82 1M Coupe,E53 48IS,E34,E36,E38,E39,E46,E53 X5,E65,E70 X5,E71 X6,E82,E83 X3,E89 Z4,E90,F01,F02,F06,F10,F12,F13

Show More Show Less
Genuine BMW - Corporate Logo
T#:29334055
Part#: 12615A740A3KT
Ships in 4 Business Days
$ 333.99 USD
Free Shipping on orders $49 and up
$ 333.99 USD
Free Shipping on orders $49 and up
This kit includes a new Genuine BMW Oil Level Sensor and three hex nuts to mount the new sensor to the oil pan. If the mounting stud bolts are also damaged, you will need 3 of BMW part number 07129904544. BMW has eliminated the dipstick in favor of electric oil level sensors located in the bottom of the oil pan. These sensors are designed to monitor both the oil level and oil condition, alerting you when the oil level is too low or the quality of the oil has dropped and should be changed. Unfortunately, like many BMW electrical components, these sensors are prone to failure and can result in improper level and quality readings. If you recently changed your oil and know the readings are incorrect, there is a good chance your sensor has failed. We recommend replacing your oil level sensor, in this case, to ensure you are always seeing proper levels and oil condition. Luckily, this sensor is easy to replace and could save you from potentially catastrophic issues later on.
Show More Show Less

Genuine BMW - Corporate Logo
T#:540927
Part#: 61139277742
Ships in 4 Business Days
$ 4.99 USD
Free Shipping on orders $49 and up
Fixing a faulty connection in your BMWs electrical system? This 10 pole socket housing is a Genuine BMW replacement.

Genuine BMW - Corporate Logo
T#:206288
Part#: 61132359999
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
This is a Genuine BMW 2 pin connector that is used in many places by BMW.
Genuine BMW - Corporate Logo
T#:49543753
Part#: 12145B32771
Ships in 6 Business Days
New Item
3% off MSRP $ 2,409.99

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

$ 2,333.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 2,409.99

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

$ 2,333.99 USD
Free Shipping on orders $49 and up
Replaces faulty or broken cotrol unit

Ground Cable - B48/S58
For vehicles with prod date up to 06/2025
Genuine BMW - Corporate Logo
T#:50311456
Part#: 12425B586B0
Ships in 10 Business Days
New Item
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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up
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.
Show More Show Less

Genuine BMW - Corporate Logo
T#:55281746
Part#: 125275WRKT
Ships in 9 Business Days
New Item
$ 37.40 USD
Free Shipping on orders $49 and up
This Genuine BMW wiring repair kit is the ideal solution to refresh worn-out terminal connections in your Ultimate Driving Machine.

ECS - Corporate Logo
T#:33412932
Part#: 61132359999
Ships in 5 Business Days
Sale - Save 25% $ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 10.99

This product was last offered at the strikethrough price on
06-14-2026

$ 8.24 USD
Free Shipping on orders $49 and up

Includes connector housing with terminals and seals. Commonly used for the coolant level sensor.

ECS Tuning replacement harness connectors include all necessary pins and wire seals for a complete harness repair. Whether you have a broken harness connector or need a complete wiring repair, we have the components you need.

Each connector includes an additional terminal in case one becomes lost or damaged during installation.

*OEM cross reference PN# 61132359999 - Commonly used for the coolant level sensor.

Please reference the original part number from the existing connector to confirm fitment, before ordering.

Suggested tools:

Suggested crimping pliers: T#387193
Wire De-pin tools:
12pc De-Pin Tool Set - T#386379
23pc De-Pin Tool Set - T#641943

Show More Show Less