BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E36 (1992-1998)

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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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OBDI Conversion Part - Water Temp Sensor Wiring Adaptor
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Turner Motorsport - Corporate Logo
T#:508
Part#: TEN9989M50
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-13-2026

$ 67.49 USD
Free Shipping on orders $49 and up
Made in the USA The TMS Water Temp Sensor Wiring Adaptor is needed when you are upgrading to OBD-I (1992-1995 components) on a 3.2 or 2.8 liter engine. These earlier engines use two separate water temp sensors in the head, one for the ECU and one for the instrument cluster. Most of the 3.2 and some of the 2.8 liter engines do not have two holes drilled in the head for the early water temp sensors. This is due to the fact that the 3.2 and 2.8 engines used a combined water temp sensor. So we designed a easy to use plug and play wiring harness. The benefits are: No cutting and splicing, no trying to fine plugs and pins. We also suggest using TMS "3.2 in a 3.0" Coolant Hose Adapter P/N: TEN9931007 to make your life easier.
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Braille - Corporate Logo
T#:558037
Part#: B14115
Ships in 5 Business Days
$ 204.99 USD
Free Shipping on orders $49 and up
When building a car for the track, one of the most important factors to consider is weight. Stock batteries can weigh up to almost 50 pounds and are unnecessarily large, designed to power a host of systems not normally used in a track car (radios, lighting, etc.). What can you do to cut weight the weight without affecting your cars operation? This is where Braille Battery comes in with their long line of performance lightweight battery options! Designed to provide the highest cranking power possible while being up to 75% lighter, Braille Battery is one of the foremost leaders in automotive racing batteries with nothing but high quality, high output batteries in mind!
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Braille - Corporate Logo
T#:558042
Part#: B3121
Ships in 6 Business Days
$ 270.99 USD
Free Shipping on orders $49 and up
When building a car for the track, one of the most important factors to consider is weight. Stock batteries can weigh up to almost 50 pounds and are unnecessarily large, designed to power a host of systems not normally used in a track car (radios, lighting, etc.). What can you do to cut weight the weight without affecting your car's operation? This is where Braille Battery comes in with their long line of performance lightweight battery options! Designed to provide the highest cranking power possible while being up to 75% lighter, Braille Battery is one of the foremost leaders in automotive racing batteries with nothing but high quality, high output batteries in mind! The B3121 battery from Braille is their lightest do-everything battery available, offering 1380 pulse cranking amps that can crank over V8 engines with ease while still coming in at under 22 pounds, half of the weight of a standard Group 34 battery! This is thanks to their Advanced AGM racing technology that allows them to put a ton of power into a very small package. Physical Specifications: BCI Group: All sizes Weight: 21lbs / 9.5kg Length: 6.6" / 168mm Width: 5.2" / 132mm Height: 6.8" / 173mm Polarity: Right Side Positive Terminal Type: Steel terminal block with M6 bolt Performance Specifications: Voltage: 12v Recharge Voltage: 14.4V – 14.6V Maintenance charge voltage: 13.8V 5s Pulse Cranking Amps (PCA): 1380 10s PDC: 124 Amp Hour (Ah): 31 Watt Hour (Wh): 372 Life Cycle @ 10% DOD: 3100 Charging Temperature 0C to 50C Discharge Temperature range -40C to +60C Storage temperature -40C to +60C *THIS BATTERY REQUIRES A CUSTOM MOUNTING SOLUTION. The size and weight are significantly smaller than a stock battery and will not be held in place by the stock battery mount*
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Braille - Corporate Logo
T#:558038
Part#: B2015
Ships in 8 Business Days
$ 237.99 USD
Free Shipping on orders $49 and up
When building a car for the track, one of the most important factors to consider is weight. Stock batteries can weigh up to almost 50 pounds and are unnecessarily large, designed to power a host of systems not normally used in a track car (radios, lighting, etc.). What can you do to cut weight the weight without affecting your cars operation? This is where Braille Battery comes in with their long line of performance lightweight battery options! Designed to provide the highest cranking power possible while being up to 75% lighter, Braille Battery is one of the foremost leaders in automotive racing batteries with nothing but high quality, high output batteries in mind! The B2015 is Braille's most popular non-carbon racing battery and is able to start larger engines easily for racing and offers daily driving capability for most 4 and 6 cylinders engine vehicles. Physical Specifications: BCI Group: All sizes Weight: 15lbs / 6.8kg Length: 6.8" / 173mm Width: 3.4" / 86mm Height: 6.1" / 155mm Polarity: Right Side Positive Performance Specifications: Voltage: 12 Full Charge Voltage: 13.2 Pulse Cranking Amps (PCA): 1067 Amp Hour (AH): 21 Life Cycle @ 10% DOD: 3100 *THIS BATTERY REQUIRES A CUSTOM MOUNTING SOLUTION. The size and weight are significantly smaller than a stock battery and will not be held in place by the stock battery mount*
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Alternator Air Duct - E36 323i 325i 328i M3
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:2099
Part#: 12311735915
Back Ordered
$ 30.99

This product was last offered at the strikethrough price on
06-22-2026

$ 22.99 USD
Free Shipping on orders $49 and up
$ 22.99 USD
Free Shipping on orders $49 and up
This is the alternator air duct that goes from the inlet scoop to the alternator.. It fits BMW E36 323is 323ic 325i 325is 325ic 328i 328ic 328is M3 1992-1998.

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328ic 328is M3
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URO Camshaft Position Sensor - BMW E36 Z3 M42 M44
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URO - Corporate Logo
T#:591864
Part#: 12141743072
In Stock
$ 36.99 USD
Free Shipping on orders $49 and up

URO Camshaft Position Sensor - BMW E36 Z3 M42 M44

The URO Camshaft Position Sensor - BMW E36 Z3 M42 M44 is an essential component for precise engine timing and efficient performance. Also known as the pulse generator, this sensor mounts to the side of the cylinder head and detects the camshaft’s position to optimize fuel injection and ignition timing. A failing sensor can trigger engine fault codes, cause rough idling, misfires, or poor fuel economy. Replacing a faulty camshaft position sensor restores accurate timing, ensuring smooth operation and peak efficiency for your BMW E36, Z3, M42, or M44 engine.

  • Direct replacement for BMW E36, Z3, M42, and M44 engines
  • Detects camshaft position for precise engine timing
  • Helps optimize fuel injection and ignition performance
  • Eliminates rough idling, misfires, and poor fuel economy
  • Designed for durability and long-lasting performance
  • Restores smooth operation and prevents engine fault codes
  • OE-style fitment for easy installation
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URO Engine Crankshaft Position Center - BMW
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URO - Corporate Logo
T#:52621857
Part#: 12141709616
In Stock
New Item
$ 25.99 USD
Free Shipping on orders $49 and up
The URO Parts 020655 Crankshaft Position Sensor offers a cost-effective alternative to expensive OE components without sacrificing quality or longevity.
URO - Corporate Logo
T#:37925937
Part#: 12141740383
Ships in 1 Business Day
$ 33.99 USD
Free Shipping on orders $49 and up

URO Camshaft Position Sensor - E34 E36 | M20 M50 S50 Engines

The URO Camshaft Position Sensor - E34 E36 | M20 M50 S50 Engines is a high-quality replacement component designed to restore proper engine operation and eliminate trouble codes or check engine lights. Replacing a failed original camshaft position sensor instantly improves engine performance by ensuring accurate timing signals for optimal fuel injection and ignition. With a direct-fit OE replacement design, this sensor offers easy installation, allowing for a seamless plug-and-play setup. Manufactured using premium polymer and metal materials, it withstands high engine temperatures, ensuring reliable performance over the long term.

Key Benefits:

  • Restores engine performance: Replacing the faulty camshaft position sensor restores the proper operation of the engine and eliminates engine codes or check engine lights.
  • Direct-fit installation: The sensor is designed for easy, plug-and-play installation without the need for modifications.
  • Durable construction: Built with high-quality polymer and metal materials to resist intense engine heat and maintain reliable function.
  • Optimized operation: Alloy conductors minimize electrical resistance, ensuring precise operation at all engine RPMs.
  • Long-lasting reliability: Designed and tested for superior durability, ensuring long-term, reliable engine performance.
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Braille - Corporate Logo
T#:558046
Part#: G30
Ships in 6 Business Days
$ 522.99 USD
Free Shipping on orders $49 and up
The G30 lithium battery from Braille is designed for the Import Tuner market (4 and 6 cylinder) for track use and has enough power for small black V8 race cars and hot rods with light electrical demands/accessories and standard compression. The G30 comes in the popular ETX 30 Group size, just like the B3121 AGM, so it is small and light enough to mount in a variety of locations. Incorporated in this battery is the same technology used in their race winning batteries used by nearly every OEM developer in classes ranging from SCCA to Formula 1.
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Ambient (Outside) Temperature Sensor
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URO - Corporate Logo
T#:376060
Part#: 65811383204
In Stock
$ 32.99 USD
Free Shipping on orders $49 and up
$ 32.99 USD
Free Shipping on orders $49 and up
If your old, original sensor has failed, you will not get a correct temperature reading. Replace it and restore function to your BMW.
Coolant Level Sensor
For vehicles with production date up to 06/1995 For vehicles with production date up to 03/1996
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URO - Corporate Logo
T#:363555
Part#: 61311384739
Ships in 1 Business Day
$ 13.99 USD
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$ 13.99 USD
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Located in the expansion tank, this sensor is critical in keeping tabs of your cooling systems health.
Electrical Connector - Priced Each
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URO - Corporate Logo
T#:367145
Part#: 61132359999
In Stock
$ 18.99 USD
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2 pin used in many locations on late model BMWs


Oil Pressure Switch - M12x1.5
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URO - Corporate Logo
T#:373033
Part#: 12611710509
In Stock
$ 8.39 USD
Free Shipping on orders $49 and up
Replacement oil pressure switch found on most BMWs
Air Temperature Sensor
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URO - Corporate Logo
T#:403093
Part#: 13621739510
Ships in 1 Business Day
$ 14.99 USD
Free Shipping on orders $49 and up
Monitors intake air temperature
Brake Switch - 4 Prong
For vehicles with Check Control
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373217
Part#: 61318360417
Back Ordered
$ 15.52 USD
Free Shipping on orders $49 and up
$ 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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Alternator Bracket Bushing - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:592985
Part#: 12311715491
Ships in 1 Business Day
$ 2.99 USD
Free Shipping on orders $49 and up
Rubber bushing, placed in the top portion of the alternator support bracket. Each vehicle requires two.

Bushing Contact With Wire Lead - Priced Each
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URO - Corporate Logo
T#:14783536
Part#: 61130005199
Back Ordered
$ 3.99 USD
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