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BMW E90 M3 S65 4.0L

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BMW E90 M3 S65 4.0L Engine Electrical Parts

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Battery Disconnect Switch - 6 Pole W/ Removable Key

ES#3604640 - EL-28606 - Battery Disconnect Switch - 6 Pole W/ Removable Key - Quickly shut down your battery in an emergency. - Rennline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Quickly shut down your battery in an emergency. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
3604640
Mfg#:
EL-28606
Ships in 7 Business Days
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stop Light Switch

ES#3625584 - 61316967601 - Stop Light Switch - Mounts behind the brake pedal - FAE - BMW MINI

Mounts behind the brake pedal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
3625584
Mfg#:
61316967601
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Boost X UltraSafe Lithium 1250 Amp Jump Starter - NOCO

ES#4389648 - GBX45 - Boost X UltraSafe Lithium 1250 Amp Jump Starter - NOCO - X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 6.5 and diesel engines up to 4.0L. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

X for Extreme - Boost X is the next generation in jump packs with an all-new design and more powerful jump starts. This 12V battery jumper will jump gas vehicles up to 6.5 and diesel engines up to 4.0L. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4389648
Mfg#:
GBX45
Ships in 9 Business Days
22% off MSRP

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

$159.99

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

$124.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTEK PRO25SE

ES#4492945 - 40-327 - CTEK PRO25SE - The PRO25SE is an innovative, versatile, and highly efficient 25A battery charger and power supply. - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The PRO25SE is an innovative, versatile, and highly efficient 25A battery charger and power supply. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4492945
Mfg#:
40-327
In Stock at Vendor
$604.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

GENIUS PRO 6V / 12V / 24V 25 Amp Battery Charger - NOCO

ES#4346391 - GENIUSPRO25 - GENIUS PRO 6V / 12V / 24V 25 Amp Battery Charger - NOCO - Similar to the G15000, just more powerful. With the greatest performance and functionality yet, it's a world-class battery charger to let professionals push the limits at incredible charging speeds. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Similar to the G15000, just more powerful. With the greatest performance and functionality yet, it's a world-class battery charger to let professionals push the limits at incredible charging speeds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4346391
Mfg#:
GENIUSPRO25
Ships in 9 Business Days
20% off MSRP

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

$749.99

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

$599.99 USD
Free Shipping
on orders $49 and up

Air Pump

ES#26878 - 11727838313 - Air Pump - An essential part of your vehicle's emissions system - Genuine BMW - BMW

An essential part of your vehicle's emissions system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26878
Mfg#:
11727838313
Ships in 6 Business Days
6% off MSRP

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

$622.99

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

$584.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Battery Cable - Positive

ES#4920503 - 61126938504 - Battery Cable - Positive - Restores proper engine grounding; eliminates voltage drops and electrical issues. - URO - BMW

Restores proper engine grounding; eliminates voltage drops and electrical issues. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO - Corporate Logo
ES#:
4920503
Mfg#:
61126938504
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#34464 - 13627839138 - Crankshaft Position Sensor - Referred to as the speed sensor & reference sensor - Genuine BMW - BMW

Referred to as the speed sensor & reference sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34464
Mfg#:
13627839138
Ships in 1-2 days
6% off MSRP

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

$296.99

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

$279.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EVO Series Digital Oil Temperature Gauge - 100-300°F

ES#3006397 - 216EVOOT.F - EVO Series Digital Oil Temperature Gauge - 100-300F - Digital oil temperature gauge with dimmable red or blue backlighting - Prosport Performance - Audi BMW Volkswagen MINI

Digital oil temperature gauge with dimmable red or blue backlighting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3006397
Mfg#:
216EVOOT.F
Ships in 2 Business Days
$78.99 USD
Free Shipping

Throttle body actuator strut - priced each

ES#34226 - 13547838300 - Throttle body actuator strut - priced each - Connects the throttle body actuator to the fuel rail - Genuine BMW - BMW

Connects the throttle body actuator to the fuel rail affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34226
Mfg#:
13547838300
In Stock
$23.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Braille Batteries G30

ES#3617620 - G30 - Braille Batteries G30 - Less voltage drop during cranking - Braille - BMW

Less voltage drop during cranking affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Braille - Corporate Logo
ES#:
3617620
Mfg#:
G30
Ships in 8 Business Days
$522.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#4870457 - 13627525015 - Crankshaft Position Sensor - Having a crank but no starting issue? This sensor is often the culprit - URO - BMW

Having a crank but no starting issue? This sensor is often the culprit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4870457
Mfg#:
13627525015
Ships in 2 Business Days
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel-It! 650HP S65 E9X BMW M3 LPFP Upgrade - w/ 4PSI Hobbs Switch

ES#4690529 - FIS65M3LPFP - Fuel-It! 650HP S65 E9X BMW M3 LPFP Upgrade - w/ 4PSI Hobbs Switch - Upgrade your fueling system to support your High Horsepower build! - Fuel-It! - BMW

Upgrade your fueling system to support your High Horsepower build! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fuel-It! - Corporate Logo
ES#:
4690529
Mfg#:
FIS65M3LPFP
Back Ordered
$514.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - AL9454X

ES#4325154 - 12317837981bKT - Remanufactured Alternator - AL9454X - Includes refundable $75.00 core charge. - Bosch - BMW

Includes refundable $75.00 core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
4325154
Mfg#:
12317837981BKT
In Stock at Vendor
$526.99

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

$513.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring for Camshaft Position Sensor (17 X 2.8 mm)

ES#34449 - 13627796699 - O-Ring for Camshaft Position Sensor (17 X 2.8 mm) - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34449
Mfg#:
13627796699
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772590 - 12521427615 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772590
Mfg#:
12521427615
Ships on Jul 27, 2026
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ON SALE! SAVE 25%
$7.99

This product was last offered at the strikethrough price on
06-13-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Electrical Parts

With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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