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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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URO Power Distribution Box With Fuse - BMW E8X 1
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URO - Corporate Logo
T#:49822552
Part#: 61146971370
In Stock
New Item
$ 91.99 USD
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Ensures the appropriate amount of power is sent to electrical vehicle components.
Hitachi Voltage Regulator - BMW E31 E32 E34 E36
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Hitachi - Corporate Logo
T#:48850064
Part#: 12311747920
Ships in 7 Business Days
New Item
$ 37.99 USD
Free Shipping on orders $49 and up
$ 37.99 USD
Free Shipping on orders $49 and up
This voltage regulator is a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to maintain a safe range of vehicle voltage, thereby protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator.
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Knock Sensor
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Bosch - Corporate Logo
T#:54388475
Part#: 13627636937
In Stock
New Item
$ 29.99 USD
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Keep your ignition timing razor-sharp and your engine safe from destructive detonation. This replacement Knock Sensor acts as your engine's first line of defense, constantly listening for pre-ignition "pinging" or knocking.
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Genuine BMW Oil Pressure Sensor
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Genuine BMW - Corporate Logo
T#:48298025
Part#: 12615B4C892
In Stock
New Item
13% off MSRP $ 58.99

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

$ 51.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
13% off MSRP
$ 58.99

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

$ 51.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
This sensor is responsible for constantly monitoring the engine oil pressure and warning the driver in the event of a problem or drastic drop in pressure.

URO Manifold Air Pressure Sensor - R50, R52, R53
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URO - Corporate Logo
T#:54388350
Part#: 12140872648
Ships in 2 Business Days
New Item
$ 35.99 USD
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This unit serves as an ideal baseline or a crucial component replacement
BMW Alternator - SEG Automotive 0121.715.118
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SEG Automotive - Corporate Logo
T#:54851991
Part#: 12317560985
In Stock at Vendor
New Item
$ 1,049.99 USD
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Hitachi Engine Camshaft Position Sensor - BMW S63M N63B/N63M/N63R S68...
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Hitachi - Corporate Logo
T#:48850059
Part#: 13628697982
Ships in 7 Business Days
New Item
$ 48.99 USD
$ 48.99 USD
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 ...
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Hitachi - Corporate Logo
T#:48815471
Part#: 13627525015
Ships in 7 Business Days
New Item
$ 66.99 USD
Free Shipping on orders $49 and up
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 Camshaft Position Sensor - BMW E9X F3X F8X N20 N52 N55 S55 ...
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Hitachi - Corporate Logo
T#:48815454
Part#: 13627525014
Ships in 7 Business Days
New Item
$ 40.00 USD
Free Shipping on orders $49 and up
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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MINI Alternator - SEG Automotive 0125.711.078
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SEG Automotive - Corporate Logo
T#:54851993
Part#: 12317613445
In Stock at Vendor
New Item
$ 563.99 USD
Free Shipping on orders $49 and up
Hitachi Crankshaft Sensor - BMW B46 B48 B58
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Hitachi - Corporate Logo
T#:48850081
Part#: 13627806782
Ships in 7 Business Days
New Item
$ 81.99 USD
Free Shipping on orders $49 and up
Tells the computer whether the timing is correct in the engine.
Battery Cable - With Pole
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Bapmic - Corporate Logo
T#:54388517
Part#: 61129259425
In Stock at Vendor
New Item
$ 126.99 USD
Free Shipping on orders $49 and up
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 Crankshaft Position Sensor - BMW F2X F3X
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Hitachi - Corporate Logo
T#:48850074
Part#: 13627582842
Ships in 7 Business Days
New Item
$ 184.99 USD
Free Shipping on orders $49 and up
Engine cranks but doesn't start? This sensor is often the issue.
URO Engine Crankshaft Position Center - BMW
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URO - Corporate Logo
T#:52621857
Part#: 12141709616
Ships in 2 Business Days
New Item
$ 25.99 USD
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The URO Parts 020655 Crankshaft Position Sensor offers a cost-effective alternative to expensive OE components without sacrificing quality or longevity.
Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54
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Hitachi - Corporate Logo
T#:48850072
Part#: 12147539165
In Stock at Vendor
New Item
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
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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BMW Alternator - SEG Automotive 0124.515.223
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SEG Automotive - Corporate Logo
T#:54851980
Part#: 12317519618
In Stock at Vendor
New Item
$ 500.99 USD
Free Shipping on orders $49 and up

Hitachi Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...
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Hitachi - Corporate Logo
T#:48850055
Part#: 12147518628
Ships in 3 Business Days
New Item
$ 71.99 USD
Free Shipping on orders $49 and up
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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MINI Alternator - SEG Automotive 0124.325.157
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SEG Automotive - Corporate Logo
T#:54851988
Part#: 12317550319
In Stock at Vendor
New Item
$ 473.99 USD
Free Shipping on orders $49 and up

BMW Alternator - SEG Automotive 0124.525.588
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SEG Automotive - Corporate Logo
T#:54851984
Part#: 12317541694
In Stock at Vendor
New Item
$ 520.99 USD
Free Shipping on orders $49 and up
Hitachi Voltage Regulator - BMW E88 N52
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Hitachi - Corporate Logo
T#:48815477
Part#: 12317550469
Ships in 7 Business Days
New Item
$ 79.99 USD
Free Shipping on orders $49 and up
Supplies power to your car's electronics and recharges the battery.

Genuine BMW Communication Wiring Harness CSC - Right - BMW G05 X5, G0...
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Genuine BMW - Corporate Logo
T#:49508960
Part#: 61278884872
Ships in 3 Business Days
New Item
5% off MSRP $ 259.99

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

$ 246.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 259.99

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

$ 246.99 USD
Free Shipping on orders $49 and up
Genuine BMW communication wiring harness

Genuine BMW Basic Cotrol Unit DME 8CT0-NOX
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Genuine BMW - Corporate Logo
T#:49543753
Part#: 12145B32771
Ships in 6 Business Days
New Item
4% 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.

$ 2,319.99 USD
Free Shipping on orders $49 and up
4% 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.

$ 2,319.99 USD
Free Shipping on orders $49 and up
Replaces faulty or broken cotrol unit
Terminal Repair Kit
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Genuine BMW - Corporate Logo
T#:55281756
Part#: 61138TRKT
Ships in 3 Business Days
New Item
$ 42.36 USD
Free Shipping on orders $49 and up
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
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Genuine BMW - Corporate Logo
T#:50311456
Part#: 12425B586B0
Ships in 9 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.
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Knock Sensor
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Meyle - Corporate Logo
T#:55353615
Part#: 12141716055
Special Order: No Guaranteed ETA
New Item
$ 28.99 USD
$ 28.99 USD
This Meyle replacement knock sensor is the perfect solution for keeping your high-performance engine safe and running at its absolute peak.
Wire Pinning Kit - MLK 1.2 Female Jack
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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.
Camshaft Speed Sensor
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Bremmen Parts - Corporate Logo
T#:52832891
Part#: 12141743072
In Stock
New Item
Sale - Save 20% $ 39.99

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

$ 31.99 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 39.99

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

$ 31.99 USD
Free Shipping on orders $49 and up

Febi Engine Oil Level Sensor - 12617607909
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Febi - Corporate Logo
T#:54816237
Part#: 12617607909
Special Order: No Guaranteed ETA
New Item
$ 121.99

This product was last offered at the strikethrough price on
06-10-2026

$ 95.99 USD
Free Shipping on orders $49 and up
$ 95.99 USD
Free Shipping on orders $49 and up
Reliable German replacement sensor keeps your BMW oil levels monitored.

Febi Oil Level Sensor - BMW F2X, F3X
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Febi - Corporate Logo
T#:52516271
Part#: 1000541
Special Order: No Guaranteed ETA
New Item
$ 90.99 USD
$ 90.99 USD
Ensure your vehicle’s engine remains protected with the Febi 1000541 Oil Level Sensor.
Starter Motor
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Bremmen Parts - Corporate Logo
T#:55030826
Part#: 12412354693
Ships on Oct 23, 2026
New Item
$ 129.99 USD
Free Shipping on orders $49 and up

Crankshaft Position Sensor
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Meyle - Corporate Logo
T#:55030834
Part#: 3148100013
Ships on Oct 30, 2026
New Item
$ 36.99 USD
Free Shipping on orders $49 and up
This Meyle Crankshaft Position Sensor is the perfect solution for restoring the critical engine speed data your ECU relies on.
Crankshaft Pulse Sensor
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Meyle - Corporate Logo
T#:55030835
Part#: 3148100018
Ships on Oct 30, 2026
New Item
$ 15.99 USD
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Keep your ultimate driving machine running the way it was engineered to with this reliable replacement.

Meyle Crankshaft Pulse Sensor - BMW EXX, FXX
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Meyle - Corporate Logo
T#:52762518
Part#: 314810014
Special Order: No Guaranteed ETA
New Item
$ 19.99 USD
Free Shipping on orders $49 and up
Revitalize your vehicle’s performance and reliability with the MEYLE Crankshaft Pulse Sensor.

MEYLE Crank Position Sensor - BMW E46, E90
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Meyle - Corporate Logo
T#:52621846
Part#: MPS0126
Special Order: No Guaranteed ETA
New Item
$ 29.99 USD
Free Shipping on orders $49 and up
The Meyle MPS0126 Crankshaft Position Sensor is a robust replacement for aging or failing factory sensors that often trigger P0335 or P0339 trouble codes.
Meyle Camshaft Position Sensor - BMW i3
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Meyle - Corporate Logo
T#:52762526
Part#: 3148100005
Special Order: No Guaranteed ETA
New Item
$ 30.99 USD
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The MEYLE Camshaft Position Sensor restores the "timing" of your engine, ensuring your fuel is injected at the perfect millisecond.
Meyle Crank Position Sensor - E36, E34
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Meyle - Corporate Logo
T#:55497425
Part#: 3148998003
Special Order: No Guaranteed ETA
New Item
$ 25.99 USD
$ 25.99 USD
Don't let a basic sensor keep your E36 or E34 off the tarmac—swap in this high-quality Meyle unit and drive with confidence.


Meyle Exhaust Camshaft Position Sensor - BMW S54 S62
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Meyle - Corporate Logo
T#:55497462
Part#: 3148000038
Special Order: No Guaranteed ETA
New Item
$ 26.99 USD
$ 26.99 USD
Don't let a failing camshaft position sensor rob your vehicle of power or cut your track day short. This Meyle replacement camshaft sensor is built to deliver fast, highly accurate data to the ECU, preventing the performance drops, sluggish throttle response, and rough idling caused by worn-out factory electronics. Engineered to withstand high underhood heat and intense vibrations, it keeps your ignition timing and fuel delivery tightly synced, whether you are daily driving or pushing through high-RPM pulls.
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Mass Air Flow Sensor (MAF) 0280218266
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URO - Corporate Logo
T#:48125822
Part#: 13627602038
Back Ordered
New Item
$ 90.99 USD
Free Shipping on orders $49 and up
Hitachi Crankshaft Position Sensor - BMW N20 N26 2.0L
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Hitachi - Corporate Logo
T#:48815475
Part#: 13627595860
Back Ordered
New Item
$ 68.99 USD
Free Shipping on orders $49 and up
This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
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Hitachi Crankshaft Position Sensor - BMW M52 S52 M54
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Hitachi - Corporate Logo
T#:48815470
Part#: 12141709616
Back Ordered
New Item
$ 32.99 USD
Free Shipping on orders $49 and up
NOTE: Does not include o-ring seal - see BMW # 12141748398 This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
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Vemo Crankshaft Position Sensor - BMW N20 N26 2.0L
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Vemo - Corporate Logo
T#:48815478
Part#: 13627595860
Special Order: No Guaranteed ETA
New Item
$ 24.99 USD
Free Shipping on orders $49 and up
This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
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Engine Oil Level Sensor - 12618608780
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Febi - Corporate Logo
T#:54816234
Part#: 1000540
Special Order: No Guaranteed ETA
New Item
$ 116.99

This product was last offered at the strikethrough price on
06-10-2026

$ 89.00 USD
Free Shipping on orders $49 and up
$ 89.00 USD
Free Shipping on orders $49 and up
When BMW threw out the mechanical dipstick, they shifted the responsibility of protecting your engine entirely to the electronic oil level sensor. On the street or the track, knowing your oil level is non-negotiable. If your dashboard sensor readout is throwing errors or lagging, your N52, N54, N55, S55, or N63 engine is operating in the dark. This Febi Bilstein engine oil level sensor is an excellent, cost-effective alternative to expensive dealership parts counter pieces. Febi is an industry-trusted German manufacturer, ensuring this sensor reads with the exact same precision and calibration as original equipment. Keep your ultimate driving machine properly monitored and safe from oil starvation. Key Features Premium German Engineering: Manufactured by Febi Bilstein to match original BMW operational tolerances. Critical Engine Protection: Restores accurate iDrive/instrument cluster oil volume and temperature readouts. Exact Factory Fit: Features the correct 3-pin oval plug orientation for a seamless plug-and-play install. Track-Day Insurance: Ensures your electronic monitoring system functions flawlessly under heavy load. Turner Tip: Oil level sensors are notorious for failing due to age and repeated heat cycles. Because this sensor installs directly into the bottom of the oil pan, make this swap part of your next oil service kit checklist.
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Hitachi Voltage Regulator - BMW E36 Z3 E34
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Hitachi - Corporate Logo
T#:48850070
Part#: 12321739435
Back Ordered
New Item
$ 60.99 USD
Free Shipping on orders $49 and up
$ 60.99 USD
Free Shipping on orders $49 and up
Alternator voltage regulators are a crucial component that controls the alternator's output, preventing overcharging by adjusting the current to keep vehicle voltage within a safe range, protecting the battery and electrical system. Symptoms of failure include dim lights, battery warnings, or a dead battery, often requiring replacement, which can be internal or external to the alternator
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