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BMW M3 Engine Electrical Parts

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Alternator - 180amp

ES#2718149 - 12317837981 - Alternator - 180amp - Brand new unit with no core charge. - Valeo - BMW
ECS Tuning recommends this product.

Brand new unit with no core charge. We Price Match - Give Us A Call or Chat!

Brand:
Valeo - Corporate Logo
ES#:
2718149
Mfg#:
12317837981
In Stock
$630.99

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

$404.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Optima YELLOWTOP High Performance AGM Battery - H6

ES#3639387 - 9048-148 - Optima YELLOWTOP High Performance AGM Battery - H6 - Upgrade to the true dual purpose heavy duty battery with a longer life span - Optima - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Upgrade to the true dual purpose heavy duty battery with a longer life span This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Optima - Corporate Logo
ES#:
3639387
Mfg#:
9048-148
In Stock
$468.99 USD
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#4057188 - 13627599042 - MAP Sensor - Hamburg Tech Map Sensor for maximum flow readings - Hamburg Tech - BMW

Hamburg Tech Map Sensor for maximum flow readings We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4057188
Mfg#:
13627599042
In Stock
ON SALE! SAVE 20%
$59.99

This product was last offered at the strikethrough price on
09-03-2026

$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#34389 - 13627525015 - Crankshaft Position Sensor - Having a crank but no starting issue? This sensor is often the culprit - Genuine BMW - BMW

Having a crank but no starting issue? This sensor is often the culprit

Brand:
Genuine BMW - Corporate Logo
ES#:
34389
Mfg#:
13627525015
In Stock
16% off MSRP

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

$175.17

This product was last offered at the strikethrough price on
09-03-2026

$146.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs

ES#3617648 - i48CX - Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs - Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! - Braille - BMW

Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Braille - Corporate Logo
ES#:
3617648
Mfg#:
I48CX
Ships in 5 Business Days
$1164.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor - Priced Each

ES#34388 - 13627525014 - Camshaft Position Sensor - Priced Each - Monitors camshaft location - Genuine BMW - BMW MINI

Monitors camshaft location

Brand:
Genuine BMW - Corporate Logo
ES#:
34388
Mfg#:
13627525014
In Stock
9% off MSRP

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

$166.83

This product was last offered at the strikethrough price on
09-03-2026

$151.53 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

TMAP Sensors & PNP Adapters

ES#3969322 - 3.5 Bar TMAP - TMAP Sensors & PNP Adapters - JB4 3.5 bar plug and play TMAP adapters - Burger Motorsports - BMW

JB4 3.5 bar plug and play TMAP adapters

Brand:
Burger Motorsports - Corporate Logo
ES#:
3969322
Mfg#:
3.5 BAR TMAP
Ships in 8 Business Days
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Starter

ES#2724218 - 12417835735 - New Starter - Brand new unit with no core charge. - Valeo - BMW

Brand new unit with no core charge. We Price Match - Give Us A Call or Chat!

Brand:
Valeo - Corporate Logo
ES#:
2724218
Mfg#:
12417835735
In Stock
$400.99

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

$293.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#4766522 - 13627599042 - MAP Sensor - Replace your faulty sensor to restore engine performance and fuel economy - Bremmen Parts - BMW

Replace your faulty sensor to restore engine performance and fuel economy 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4766522
Mfg#:
13627599042
In Stock
ON SALE! SAVE 18%
$56.99

This product was last offered at the strikethrough price on
05-02-2026

$46.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Motiv ReFlex Plug-n-Play Ethanol Sensor Harness

ES#4731941 - 101-0212 - Motiv ReFlex Plug-n-Play Ethanol Sensor Harness - For Vehicles With Motiv ReFlex Unit Currently Installed - Motiv Motorsports - BMW

For Vehicles With Motiv ReFlex Unit Currently Installed For Vehicles With Motiv ReFlex Unit Currently Installed Only

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4731941
Mfg#:
101-0212
In Stock
$49.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#3411431 - 11781427884 - Oxygen Sensor - Priced Each - Replace your faulty O2 sensor to eliminate CEL's and Fault Codes - Walker - BMW

Replace your faulty O2 sensor to eliminate CEL's and Fault Codes

Brand:
Walker - Corporate Logo
ES#:
3411431
Mfg#:
11781427884
In Stock
$167.99

This product was last offered at the strikethrough price on
04-11-2026

$111.93 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Negative Battery Cable 6PK 010 562-901

ES#3551063 - 12427603567 - Negative Battery Cable 6PK 010 562-901 - Replacement cable with Intelligent Battery Sensor. - Hella - BMW MINI
ECS Tuning recommends this product.

Replacement cable with Intelligent Battery Sensor.

Brand:
Hella - Corporate Logo
ES#:
3551063
Mfg#:
12427603567
Back Ordered
$153.73 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Indicator - Includes Nuts and Sealing Gasket

ES#4675715 - 12617607910KT - Oil Level Indicator - Includes Nuts and Sealing Gasket - Reads oil level in oil pan - Hamburg Tech - BMW

Reads oil level in oil pan We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4675715
Mfg#:
12617607910KT
In Stock
ON SALE! SAVE 10%
$152.99

This product was last offered at the strikethrough price on
08-23-2026

$137.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport E9X Cowl Delete Harness Mounting Bracket

ES#4315965 - 007629LA02 - Turner Motorsport E9X Cowl Delete Harness Mounting Bracket - Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. - Turner Motorsport - BMW

Get rid of all your plastic in your engine bay for a cleaner look! Completely eliminates the bulky, obtrusive cabin filter housing for more room underhood - offering more room to access the engine. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4315965
Mfg#:
007629LA02
In Stock
ON SALE! SAVE 25%
$143.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Multi Purpose Relay (150 Amp) (Black)

ES#169421 - 61367661503 - Multi Purpose Relay (150 Amp) (Black) - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
169421
Mfg#:
61367661503
In Stock
ON SALE!
$130.99

This product was last offered at the strikethrough price on
08-26-2026

$120.96 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Alternator - 120amp

ES#4751405 - 12317831436 - New Alternator - 120amp - Brand new, not remanufactured. No core charge! - Bavarian Autosport - BMW

Brand new, not remanufactured. No core charge! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4751405
Mfg#:
12317831436
Ships on Sep 29, 2026
Auto Notify
ON SALE! SAVE 20%
$222.99

This product was last offered at the strikethrough price on
05-02-2026

$178.39 USD
Free Shipping
on orders $49 and up

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.

Let us help you find the parts that fit your BMW

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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