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BMW Electrical Sensors, Switches, & Relays for BMW 6 Series E64 (2004-2010)

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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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Camshaft Position Sensor - Priced Each

Four required per engine, may be replaced separately as needed.

T#:27105154

Part#: 13627525014

In Stock

Sale - Save 17% $ 41.99

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

$ 34.84 USD

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Sale - Save 17%

$ 41.99

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

$ 34.84 USD

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Braille Lightweight Advanced AGM Battery - B3121 - 21lbs

T#:558042

Part#: B3121

Ships in 6 Business Days

$ 270.99 USD

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$ 270.99 USD

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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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Bremmen Camshaft Position Sensor - E46 E39 E60 E83 Z3 Z4

T#:640145

Part#: 12147518628

Ships on Sep 16, 2026

Sale - Save 16% $ 31.99

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

$ 26.87 USD

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Sale - Save 16%

$ 31.99

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

$ 26.87 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 drivability issues

N62 Eccentric Shaft Sensor - 11377527017

T#:36981071

Part#: 11377527017

Ships on Aug 11, 2026

Sale - Save 20% $ 172.99

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

$ 137.90 USD

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Sale - Save 20%

$ 172.99

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

$ 137.90 USD

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Ensure smooth engine operation in your BMW N62 N73 Engines with this Bremmen Parts Eccentric Shaft Sensor. Designed to detect valve position and lift adjusted by the Valvetronic motor, this sensor prevents poor cold-start issues and rough idle caused by valve lift failure. Avoid potential limp mode situations with this reliable replacement sensor, which also requires a valve cover gasket replacement for proper installation.

Key Benefits:

Detects valve position and lift for optimal engine performance Prevents poor cold-start issues and rough idle Avoids potential limp mode situations Compatible with N62 N73 Engines

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Knock Sensor (Ping Sensor) - 13627568421

T#:36913356

Part#: 13627568421

In Stock

$ 75.99

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

$ 56.99 USD

Limited Qty Sale

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$ 75.99

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

$ 56.99 USD

Limited Qty Sale

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Maintain optimal engine performance with this premium replacement knock sensor, engineered to detect pinging, knocking, and pre-detonation within your engine. By precisely monitoring these vibrations, the sensor enables the engine control unit (ECU) to fine-tune ignition timing, safeguarding your engine and enhancing overall efficiency.

A malfunctioning knock sensor can result in diminished power, reduced fuel efficiency, and potential engine damage. Restore your engine's functionality and reliability with this high-quality knock sensor from Bremmen Parts, designed for long-lasting performance and peace of mind.

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Braille Performance GreenLite Lithium-ION Battery - G30 - 5.5lbs ...

T#:558046

Part#: G30

Ships on Aug 7, 2026

$ 522.99 USD

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$ 522.99 USD

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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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Bremmen Parts Outdoor Temperature Sensor / Probe - 65816936953 ...

T#:30728992

Part#: 65816936953

In Stock

Sale - Save 24% $ 13.99

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

$ 10.67 USD

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Sale - Save 24%

$ 13.99

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

$ 10.67 USD

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Hitachi Engine Crankshaft Position Sensor - BMW N52 N54 S85 S65 S63 ...

T#:48815471

Part#: 13627525015

Ships in 6 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 Camshaft Position Sensor - E39, E46, E53, E60, E63, E64, E65,...

T#:48850055

Part#: 12147518628

Ships in 2 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 - BMW E9X F3X F8X N20 N52 N55 S55 ...

T#:48815454

Part#: 13627525014

Ships in 6 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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Electrical System
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- Sensors (8)

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