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BMW E39 Engine Electrical Parts

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New Alternator - 120amp

ES#4751406 - 12317501690 - New Alternator - 120amp - Brand new, not remanufactured. No core charge! - Bavarian Autosport - BMW

Brand new, not remanufactured. No core charge!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4751406
Mfg#:
12317501690
In Stock
ON SALE! SAVE 20%
$211.99

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

$169.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Endurance Series AGM Battery- B49-H8-L5

ES#3617596 - B10049 - Endurance Series AGM Battery- B49-H8-L5 - Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. - Braille - Audi BMW

Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. 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 shipping

Brand:
Braille - Corporate Logo
ES#:
3617596
Mfg#:
B10049
In Stock
$446.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each - N20 N52 N54 N55 S55 S54 N62 S62 M54

ES#2683885 - 12138616153 - Ignition Coil - Priced Each - N20 N52 N54 N55 S55 S54 N62 S62 M54 - Replace your faulty ignition coils to prevent misfires, restore power, and remove check engine lights - Genuine BMW - BMW MINI

Replace your faulty ignition coils to prevent misfires, restore power, and remove check engine lights

Brand:
Genuine BMW - Corporate Logo
ES#:
2683885
Mfg#:
12138616153
In Stock
14% off MSRP

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

$100.05

This product was last offered at the strikethrough price on
08-03-2026

$86.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

GB500+ Max UltraSafe Lithium 6250 Amp Jump Starter - NOCO

ES#4336379 - GB500 - GB500+ Max UltraSafe Lithium 6250 Amp Jump Starter - NOCO - This powerful 12V and 24V jump starter is suitable for nearly all cases - including diesel engines up to 45 liters and equipment up to 16 cylinders - or use it in your garage for all of your needs! - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This powerful 12V and 24V jump starter is suitable for nearly all cases - including diesel engines up to 45 liters and equipment up to 16 cylinders - or use it in your garage for all of your needs!

Brand:
NOCO - Corporate Logo
ES#:
4336379
Mfg#:
GB500
Back Ordered
20% off MSRP

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

$2499.99

This product was last offered at the strikethrough price on
08-22-2026

$1999.99 USD
Free Shipping

Oxygen Sensor - Priced Each

ES#240368 - 11781742050 - Oxygen Sensor - Priced Each - 2 required in each application - Bosch - BMW
ECS Tuning recommends this product.

2 required in each application We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
240368
Mfg#:
11781742050
In Stock
$96.10

This product was last offered at the strikethrough price on
05-29-2026

$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

7/8"(22mm) Flexible Oxygen Sensor Wrench

ES#240942 - FO-78 - 7/8"(22mm) Flexible Oxygen Sensor Wrench - The proper tool to remove difficult-to-reach oxygen sensors - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

The proper tool to remove difficult-to-reach oxygen sensors

Brand:
Schwaben - Corporate Logo
ES#:
240942
Mfg#:
FO-78
In Stock
ON SALE! SAVE 25%
$48.99

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

$36.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Position Sensor - Priced Each

ES#34514 - 13637840383 - Throttle Position Sensor - Priced Each - This is the sensor used on individual throttle bodies engines - Genuine BMW - BMW

This is the sensor used on individual throttle bodies engines Located on the rear of the intake manifold. 2 sensors required per vehicle - one for each bank

Brand:
Genuine BMW - Corporate Logo
ES#:
34514
Mfg#:
13637840383
In Stock
6% off MSRP

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

$195.55

This product was last offered at the strikethrough price on
08-22-2026

$184.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#3691755 - 13627567451 - Mass Air Flow Sensor (MAF) - Controls the air / fuel mixture of the engine. - Hella - BMW
ECS Tuning recommends this product.

Controls the air / fuel mixture of the engine.

Brand:
Hella - Corporate Logo
ES#:
3691755
Mfg#:
13627567451
Ships on Sep 14, 2026
Auto Notify
$114.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Booster

ES#4624166 - D440-1700 - Throttle Booster - Wireless controlled unit that allows adjustable throttle response control - Dinan - BMW MINI

Wireless controlled unit that allows adjustable throttle response control Call In Or Chat For Best Price!

Brand:
Dinan - Corporate Logo
ES#:
4624166
Mfg#:
D440-1700
In Stock
11% off MSRP

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

$325.99

This product was last offered at the strikethrough price on
08-22-2026

$288.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#28830 - 12147539165 - Camshaft Position Sensor - Intake side - Genuine BMW - BMW

Intake side For M52TU Motors Not For Non TU Engines

Brand:
Genuine BMW - Corporate Logo
ES#:
28830
Mfg#:
12147539165
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.

$228.86

This product was last offered at the strikethrough price on
08-22-2026

$208.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

New Alternator - AL0703N - 120A

ES#3647573 - 12317501690 - New Alternator - AL0703N - 120A - Brand New Alternator, Not a reman! - Bosch - BMW

Brand New Alternator, Not a reman! We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3647573
Mfg#:
12317501690
In Stock
$526.99

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

$415.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Starter Motor Replacement Kit

ES#4147680 - 12412354693bKT - Starter Motor Replacement Kit - Includes starter with no core charge, intake gaskets, and hardware. - Assembled By ECS - BMW

Includes starter with no core charge, intake gaskets, and hardware.

Brand:
Assembled By ECS - Corporate Logo
ES#:
4147680
Mfg#:
12412354693BKT
In Stock
$310.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#3691255 - 13621432356 - Mass Air Flow Sensor (MAF) - Complete with housing. - Hella - BMW

Complete with housing. For vehicles with a production date from 09/1998

Brand:
Hella - Corporate Logo
ES#:
3691255
Mfg#:
13621432356
Ships in 6 Business Days
$104.99 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

Throttle Position Sensor - Priced Each

ES#5376287 - 13637840383 - Throttle Position Sensor - Priced Each - This is the sensor used on individual throttle bodies engines - Hamburg Tech - BMW

This is the sensor used on individual throttle bodies engines Located on the rear of the intake manifold. 2 sensors required per vehicle - one for each bank

Brand:
Hamburg Tech - Corporate Logo
ES#:
5376287
Mfg#:
13637840383
In Stock
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 M5 Fuel Pump Assembly

ES#37409 - 16146752369 - E39 M5 Fuel Pump Assembly - Includes sealing gasket - Genuine BMW - BMW

Includes sealing gasket

Brand:
Genuine BMW - Corporate Logo
ES#:
37409
Mfg#:
16146752369
In Stock
6% off MSRP

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

$757.99

This product was last offered at the strikethrough price on
08-22-2026

$713.99 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.

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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