BMW Electrical Sensors, Switches, & Relays

OEM Valeo Alternator - 180amp - E9X M3 S65

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T#:377508

Part#: 12317837981

In Stock

$ 630.99

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

$ 404.99 USD

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$ 404.99 USD

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This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

OEM Starter Motor - E46 M3 2001-2006

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T#:2988

Part#: 12417835735

In Stock

$ 400.99

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

$ 293.99 USD

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$ 293.99 USD

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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe

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BMW E6X / E8X / E9X - N52 Replacement Starter Kit

T#:15777314

Part#: SR0492NKT2-KT

In Stock

Sale - Save 8% $ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

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$ 296.99

This product was last offered at the strikethrough price on
03-17-2026

$ 273.79 USD

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Is your car having trouble starting? Does your starter click when you turn the key? Sounds like it's time for a new starter motor! Includes new starter with no core charge, intake gaskets, throttle body gasket and hardware.

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N52 Valvetronic Camshaft Adjuster Replacement Kit

T#:5416764

Part#: 11377548388TMSKT

Ships in 4 Business Days

Sale - Save 19% $ 220.99

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

$ 179.20 USD

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$ 220.99

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

$ 179.20 USD

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Includes new Valvetronic motor, gasket, and hardware. The Valv-tronic adjuster unit changes the the timing shaft to adjust the valve timing.

Vitesco Technologies MAP Sensor - BMW N20 N26 S55 S63

T#:39059260

Part#: 13627843531

In Stock

$ 93.99

This product was last offered at the strikethrough price on
06-28-2026

$ 90.99 USD

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$ 90.99 USD

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This is a replacement Manifold Absolute Pressure sensor Located on the charge air cooler. The MAP controls the amount of fuel that goes through the injectors based on the pressure of air at the intake manifold. If your vehicle is giving you a MAP code, replace it immediately to ensure you get the best gas mileage and performance. It is common for this part to fail slowly and cause poor fuel mileage and hampered performance. When it fails, the vehicle will stutter and stall as it falls into a limp mode. One way to check if your MAP is bad is to unplug the connector before starting your car. If it idles well (compared to a previous poor idle), your MAP sensor likely needs to be replaced. If you let this maintenance part go, your fuel economy will suffer as too much fuel is going into the engine and not being burned. A great way to give your vehicle an efficiency boost.

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Meyle Crankshaft Position Sensor - E36, E39, E46, E53, E60, E83, Z3, ...

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T#:369703

Part#: 12141709616

Ships on Sep 29, 2026

$ 46.99 USD

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$ 46.99 USD

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Does not include O-ring

Vitesco Mass Air Flow Sensor - N55, N52

T#:33512934

Part#: 13627593624

In Stock

$ 210.99 USD

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$ 210.99 USD

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The MAF of your vehicle decides the quantity of fuel that is fed to the injectors according to the volume of air coming through the intake.

Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70

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T#:1196078

Part#: 12318510090

Ships in 1 Business Day

$ 91.37 USD

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$ 91.37 USD

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OEM replacement for you BMW alternator fixing charging issues

E46 M3, MZ3 S54 OEM Valeo Alternator (New)

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T#:377735

Part#: 12317831436

In Stock

$ 522.00

This product was last offered at the strikethrough price on
07-16-2026

$ 463.99 USD

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$ 463.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Safety Pressure Switch

T#:641428

Part#: 64531386971

Ships in 1 Business Day

$ 41.97

This product was last offered at the strikethrough price on
07-03-2026

$ 38.59 USD

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$ 38.59 USD

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Is your air conditioning system faulting by turning on and off at random, leaving you sweating in the hot summer days? The pressure switch shuts off the A/C compressor if the refrigerant pressure is too low or too high to protect your A/C system components from damage. If the switch is faulty, the A/C compressor will shut off at random intervals, or not turn on at all, without cooling the interior cabin. If this is the case with your A/C system, replace your pressure switch to restore cool air.

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Exhaust Camshaft Sensor - E46 E39 E38 E60 E63 E65 X3 X5 Z3 Z4 ...

T#:338260

Part#: 12147518628HK

In Stock

Starting at $ 79.98 USD

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Starting at $ 79.98 USD

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This is the exhaust cam position sensor for cars with M52, M54, N62 engines. Choose either Genuine BMW or Hella brand. Hella manufactures the highest quality parts and is an OEM supplier to BMW. Includes BMW part numbers 12147518628 and 12141748398. Replaces BMW part number 12141438082.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 545i
2004-2005 E63 BMW 645ci
2002-2005 E65 BMW 745i 745li
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2004-2006 E53 BMW X5 4.4i 4.8i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Voltage Regulator

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T#:594108

Part#: 12317603775

Ships in 1 Business Day

$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD

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$ 70.45 USD

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Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.

Camshaft Position Sensor

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T#:591413

Part#: 12141742185

In Stock at Vendor

$ 108.99

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

$ 104.99 USD

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$ 104.99 USD

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When this sensor fails, it will become impossible to start your car, leaving you stranded.

OEM Valeo Alternator - E60 M5, E63/64 M6

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T#:14835

Part#: 12317836592

Ships in 7 Business Days

$ 358.99 USD

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$ 358.99 USD

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This is a Valeo brand new 170 amp alternator. These alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

No core charge!

This item fits the following BMWs:
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6

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Alternator - 150 Amp - Valeo

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T#:579634

Part#: 439590

In Stock

$ 620.35

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

$ 518.99 USD

Limited Qty Sale

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$ 620.35

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

$ 518.99 USD

Limited Qty Sale

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Eccentric Shaft Sensor Kit

T#:5416787

Part#: 11377524879TMSKT

In Stock

Sale - Save 18% $ 270.99

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

$ 221.57 USD

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Sale - Save 18%

$ 270.99

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

$ 221.57 USD

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Includes a new sensor as well as valve cover and eccentric gaskets for a complete service. The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.

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Eccentric Shaft Sensor Kit

T#:15677508

Part#: 11127581215-KT

In Stock

Sale - Save 18% $ 270.16

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

$ 221.57 USD

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Sale - Save 18%

$ 270.16

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

$ 221.57 USD

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The eccentric shaft sensor is known to fail and can be a costly repair at the dealer. Often caused by oil getting into the connection for the wiring harness and damaging the sensor and causing a check engine light. With this kit you get the the sensor along with new valve cover and eccentric shaft adjuster gaskets to ensure a complete leak free job.

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Valeo New Alternator - 80 Amp - E34, E36

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T#:377737

Part#: 12311744564

In Stock at Vendor

$ 549.99

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

$ 533.99 USD

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$ 533.99 USD

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Brand new unit with no core charge

OEM Valeo Alternator - 185 amp

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T#:376244

Part#: 12317525376

Ships in 1 Business Day

$ 730.23

This product was last offered at the strikethrough price on
07-16-2026

$ 647.45 USD

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$ 647.45 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Valeo Brand New Alternator - E89 Z4 M Coupe/Roadster

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T#:379218

Part#: 12317837691KT

Ships in 6 Business Days

$ 378.99 USD

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$ 378.99 USD

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This is a brand new Valeo alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Valeo alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications.

No core charge!

Fits the following BMW Chassis:

E89 BMW Z4 M Coupe, M Roadster

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Hitachi Voltage Regulator - BMW E31 E32 E34 E36

T#:48850064

Part#: 12311747920

Ships in 7 Business Days

$ 37.99 USD

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$ 37.99 USD

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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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Alternator

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T#:594101

Part#: 12318570672

In Stock at Vendor

$ 1,094.99

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

$ 1,062.99 USD

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$ 1,062.99 USD

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Replacement Alternator from Valeo

Alternator Pulley - E82 E90 E92 E60

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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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Valeo New Starter Motor - E70, E71, E82, E84, E88, E92, E93, F10, F30...

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T#:594588

Part#: 12417616502

Ships in 4 Business Days

$ 265.76 USD

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$ 265.76 USD

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Brand new unit - no core charge! Avoid messing with a core return entirely!

Knock Sensor

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T#:35964551

Part#: 13627568422

In Stock

$ 75.99 USD

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$ 75.99 USD

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This sensor detects engine knocking or pinging and adjusts the timing to ensure optimal engine performance and efficiency.

Valeo New Alternator - 230 Amp - E71, F01, F02

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T#:579635

Part#: 439640

Ships on Aug 17, 2026

$ 590.99 USD

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$ 590.99 USD

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New Replacement Alternator From Valeo - 12317603781

OEM Valeo New Alternator - 230amp

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T#:383432

Part#: 12317603782

Ships on Aug 17, 2026

$ 730.99 USD

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$ 730.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Crankshaft Position Sensor - E30 325e 325i 325is E34 525i

T#:338003

Part#: 12141720852

Ships on Oct 19, 2026

Starting at $ 108.99 USD

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Starting at $ 108.99 USD

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This crank shaft position sensor (CPS) provides the engine computer with engine speed data via the harmonic balancer. It mounts off the engine block and reads the front crank pulley to tell the engine what position the engine internals are in. This sensor is crucial for starting the car as the ECU will not allow the engine to start without this signal. It fits all M20 engines in the E30 and E34. A lot of times the sensor is covered in oil, broken from a spinning belt, or the clearance to the pulley is not correct (should be .040"). Interchangeable with #12141720856.

Brand Options:
Original BMW - more expensive but higher quality and more consistent reliability. The sensor itself has a metal housing that is more durable and will not be affected by heat as much.
Aftermarket/Overseas manufacturer - cheaper than OE BMW but less quality and potentially less consistent. Plastic housing is more susceptible to damage from heat.

This item fits the following BMWs:
1987-1991 E30 BMW 325e 325es 325i 325is 325ix 325ic
1989-1990 E34 BMW 525i

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Meyle Crankshaft Position Sensor - M60

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T#:5958675

Part#: 12141731887

Ships on Dec 1, 2026

$ 59.99 USD

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$ 59.99 USD

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Wulf Gaertner Autoparts AG manufactures and markets automotive spare parts under its MEYLE brand. Since its foundation in 1958, Wulf Gaertner Autoparts has been an owner-operated, unlisted family business on the aftermarket scene. Since 1995, Wulf Gaertner Autoparts AG has been manufacturing and trading under its MEYLE brand. They pride themselves on top-grade quality-tested spare parts for passenger cars, vans and commercial vehicles. The crankshaft position sensor measures the speed at which the crank is turning and adjusts fueling via the ECU to match. If it fails, your computer will not know the speed and will fuel it improperly. Installs exactly in the place of your old sensor and will eliminate your car's idle, performance, and misfiring problems.

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OEM Valeo Alternator - 120amp - E39 E46 E53 Z3, M54 with Valeo Altern...

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T#:371896

Part#: 12317501599

In Stock

$ 323.99 USD

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$ 323.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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OEM Valeo Alternator - E60 E63 E65 550i 650i 750i

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T#:379446

Part#: 12317542935KT

Back Ordered

$ 444.99 USD

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$ 444.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

For vehicles with production date from 03/2005.

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Valeo Alternator - 180 Amp - E70

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T#:377914

Part#: 12317561004

Ships in 6 Business Days

$ 482.99 USD

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$ 482.99 USD

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Brand new unit with no core charge.

OEM Valeo Starter (New)

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T#:380773

Part#: 12417835737

Back Ordered

$ 593.99 USD

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$ 593.99 USD

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A failed starter will leave even the best-maintained BMW stranded. Replace your failed starter motor with this brand new replacement from Valeo. Valeo is an OEM BMW supplier - save money and by quality parts by buying them in a different box!

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Pressure Differential Sensor

T#:39329319

Part#: 13628657300

In Stock

$ 52.99

This product was last offered at the strikethrough price on
07-02-2026

$ 51.99 USD

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$ 51.99 USD

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Oil Level Sensor

T#:39261793

Part#: 12615A740A3

In Stock

Sale - Save 5% $ 243.99

This product was last offered at the strikethrough price on
07-02-2026

$ 231.79 USD

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Sale - Save 5%

$ 243.99

This product was last offered at the strikethrough price on
07-02-2026

$ 231.79 USD

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Bosch Starter Motor With Hardware

T#:56110332

Part#: SR0492NKT4

In Stock

$ 261.99 USD

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$ 261.99 USD

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At the core is a brand-new Bosch Starter Motor, engineered to withstand extreme operating conditions while delivering immediate cranking speed. This kit includes also the required Genuine BMW Aluminum Mounting Screw Set.

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Alternator - 220 Amp

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T#:594099

Part#: 12317560989

Ships on Aug 10, 2026

$ 574.96 USD

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$ 574.96 USD

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Replacement Alternator from Valeo

Alternator

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T#:594100

Part#: 12317561002

In Stock at Vendor

$ 794.99

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

$ 771.99 USD

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$ 771.99 USD

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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

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Valeo Alternator - E53

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T#:377182

Part#: 12317540994

Special Order: No Guaranteed ETA

$ 384.99 USD

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$ 384.99 USD

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Restore charging system voltage with a new alternator

Hitachi Camshaft Position Sensor - BMW E9X F3X F8X N20 N52 N55 S55 ...

T#:48815454

Part#: 13627525014

Ships in 7 Business Days

$ 40.00 USD

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$ 40.00 USD

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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 ...

T#:48815471

Part#: 13627525015

Ships in 7 Business Days

$ 66.99 USD

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$ 66.99 USD

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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 Engine Crankshaft Position Sensor - BMW F2X F3X

T#:48850074

Part#: 13627582842

Ships in 7 Business Days

$ 184.99 USD

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$ 184.99 USD

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Engine cranks but doesn't start? This sensor is often the issue.

Hitachi Crankshaft Sensor - BMW B46 B48 B58

T#:48850081

Part#: 13627806782

Ships in 7 Business Days

$ 81.99 USD

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$ 81.99 USD

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Tells the computer whether the timing is correct in the engine.

Hitachi Engine Camshaft Position Sensor - BMW S63M N63B/N63M/N63R S68...

T#:48850059

Part#: 13628697982

Ships in 7 Business Days

$ 48.99 USD

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$ 48.99 USD

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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 Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

T#:48850055

Part#: 12147518628

Ships in 3 Business Days

$ 71.99 USD

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$ 71.99 USD

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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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Hitachi Camshaft Position Sensor - Intake - BMW M52TU M54

T#:48850072

Part#: 12147539165

Ships in 6 Business Days

$ 41.99 USD

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$ 41.99 USD

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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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