BMW Electrical Sensors, Switches, & Relays for BMW 3 Series E46 (1999-2005)

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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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New Alternator - 120A
New Alternator - 120A
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bavarian Autosport - Corporate Logo
T#:25042543
Part#: 12317501690
In Stock
Sale - Save 20% $ 211.99

This product was last offered at the strikethrough price on
11-07-2026

$ 169.59 USD
Free Shipping on orders $49 and up
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Sale - Save 20%
$ 211.99

This product was last offered at the strikethrough price on
11-07-2026

$ 169.59 USD
Free Shipping on orders $49 and up
Add to Wish List
Alternator - 120amp
Alternator - 120amp
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Bavarian Autosport - Corporate Logo
T#:25042542
Part#: 12317831436
In Stock
Sale - Save 25% $ 222.99

This product was last offered at the strikethrough price on
11-07-2026

$ 167.24 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 25%
$ 222.99

This product was last offered at the strikethrough price on
11-07-2026

$ 167.24 USD
Free Shipping on orders $49 and up
Add to Wish List
Ambient Temp. Sensor
Ambient Temp. Sensor
FAE - Corporate Logo
T#:31589381
Part#: 65816905133
In Stock
$ 20.99 USD
Free Shipping
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$ 20.99 USD
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FAE Exhaust Camshaft Position Sensor
FAE Exhaust Camshaft Position Sensor
Sensor for the exhaust camshaft
FAE - Corporate Logo
T#:1196088
Part#: 13627796054
Ships on Dec 7, 2026
$ 74.99

This product was last offered at the strikethrough price on
09-16-2026

$ 54.99 USD
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$ 54.99 USD
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Located on rear of the cylinder head, sensing the exhaust cam
OMP Battery Cut Off Switch / Kill Switch
OMP Battery Cut Off Switch / Kill Switch
OMP - Corporate Logo
T#:1614
Part#: EA-462
Back Ordered
$ 65.00 USD
Free Shipping
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$ 65.00 USD
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OMP Battery Cut Off Switch / Kill Switch, for use in racecars as an emergency "kill switch", to depower the electrical system in the event of a crash or other emergency. This cut off switch is FIA approved, has 6 poles and alternator protection, as well as a removable key.
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Water / Oil Temperature Sensor - E46, E90 E92 E39 and more
Water / Oil Temperature Sensor - E46, E90 E92 E39 and more
FAE - Corporate Logo
T#:7256
Part#: 13621433076
In Stock
$ 16.99

This product was last offered at the strikethrough price on
09-26-2026

$ 14.99 USD
Free Shipping on orders $49 and up
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$ 14.99 USD
Free Shipping on orders $49 and up
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This coolant / oil temperature sensor is mounted in the cylinder head and/or the oil filter housing and/or water pump/ thermostat housing. Also used as an oil temperature sensor on cars with SMG transmissions.
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Stop Light Switch
Stop Light Switch
FAE - Corporate Logo
T#:31092548
Part#: 61316967601
In Stock
$ 15.99 USD
Free Shipping on orders $49 and up
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$ 15.99 USD
Free Shipping on orders $49 and up
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FAE Air Temperature Sensor - E36, E38, E39, E46, E53, E83
FAE Air Temperature Sensor - E36, E38, E39, E46, E53, E83
FAE - Corporate Logo
T#:596540
Part#: 13621739510
In Stock
$ 12.99 USD
Free Shipping on orders $49 and up
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$ 12.99 USD
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Monitors intake air temperature
FAE Oil Pressure Switch - M12x1.5
FAE Oil Pressure Switch - M12x1.5
FAE - Corporate Logo
T#:377029
Part#: 12612367061
Back Ordered
$ 5.99 USD
Free Shipping on orders $49 and up
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$ 5.99 USD
Free Shipping on orders $49 and up
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Leaking or malfunctioning oil pressure switches can be disastrous
FAE Oil Pressure Switch - M12x1.5
FAE Oil Pressure Switch - M12x1.5
FAE - Corporate Logo
T#:374049
Part#: 12617568480
Back Ordered
$ 7.99 USD
Free Shipping on orders $49 and up
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$ 7.99 USD
Free Shipping on orders $49 and up
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Leaking or malfunctioning oil pressure switches can be disastrous

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