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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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Safety Pressure Switch
Safety Pressure Switch
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Santech - Corporate Logo
T#:641428
Part#: 64531386971
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$ 41.97

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

$ 41.94 USD
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$ 41.94 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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Vargas USB To Serial For HPFP Controller - BMW N54
Vargas USB To Serial For HPFP Controller - BMW N54
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Vargas Turbo Technologies - Corporate Logo
T#:51778112
Part#: N54-USB-SERIAL-H
Ships in 10 Business Days
New Item
Sale - Save 15% $ 37.99

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

$ 32.29 USD
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Sale - Save 15%
$ 37.99

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

$ 32.29 USD
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Take full control of your N54’s fueling system with the Vargas Turbo Technologies USB to Serial adapter.
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S63
Vargas MAP Sensor Extension Harness - BMW B58, N54, N55, S55, S58, S6...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:51672717
Part#: VTT-MAP-HARNESS
Ships in 10 Business Days
New Item
Sale - Save 15% $ 59.99

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

$ 50.99 USD
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Sale - Save 15%
$ 59.99

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

$ 50.99 USD
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As part of the VTT-FAB fabrication line, this extension harness is designed for builders and tuners who need flexibility.
Vargas Coolant Level Extension Harness - BMW B48/B58/S58
Vargas Coolant Level Extension Harness - BMW B48/B58/S58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:51813310
Part#: VTT-FAB-HC
Ships in 10 Business Days
New Item
Sale - Save 15% $ 49.99

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

$ 42.49 USD
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Sale - Save 15%
$ 49.99

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

$ 42.49 USD
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Simplify your next fabrication project with the VTT-FAB series Coolant Extension Harness.
Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW B58/S55/S58
Vargas Plug & Play Pre And Post Throttle MAP Sensor Kit - 6B 4W - BMW...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vargas Turbo Technologies - Corporate Logo
T#:52129729
Part#: VTT56BSENSKIT64
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Sale - Save 15% $ 209.99

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

$ 178.49 USD
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Sale - Save 15%
$ 209.99

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

$ 178.49 USD
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The VTT 6-Bar MAP sensor kit provides the necessary overhead to monitor boost levels with a linear voltage scale that makes software calibration straightforward.

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