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BMW E46 325i M54 2.5L

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BMW E46 325i M54 2.5L Engine Electrical Parts

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Alternator - 90 Amp (Compact)

ES#4690100 - 12317501687 - Alternator - 90 Amp (Compact) - No core charge required! - Vaico Q+ - BMW

No core charge required!

Brand:
Vaico Q+ - Corporate Logo
ES#:
4690100
Mfg#:
12317501687
Special Order: No Guaranteed ETA
$329.99 USD
Free Shipping
on orders $49 and up

Alternator - 120amp

ES#2167421 - 12317501599 - Alternator - 120amp - 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!
For vehicles that came with a Valeo alternator

Brand:
Valeo - Corporate Logo
ES#:
2167421
Mfg#:
12317501599
Ships on Nov 3, 2026
$323.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Yellow Relay - Priced Each

ES#169405 - 61361389105 - Yellow Relay - Priced Each - Yellow relay used for multiple applications. - Genuine BMW - BMW

Yellow relay used for multiple applications.

Brand:
Genuine BMW - Corporate Logo
ES#:
169405
Mfg#:
61361389105
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Suction Hose

ES#26816 - 11727553059 - Suction Hose - Replacement hose that connects from air pump to evaporator pump mass air flow sensor - Genuine BMW - BMW

Replacement hose that connects from air pump to evaporator pump mass air flow sensor

Brand:
Genuine BMW - Corporate Logo
ES#:
26816
Mfg#:
11727553059
Ships in 3 Business Days
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3 Pin Connector

ES#4772586 - 12521732596 - 3 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the camshaft position sensor. - ECS - BMW

Includes connector housing with terminals and seals. Commonly used for the camshaft position sensor. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4772586
Mfg#:
12521732596
In Stock
ON SALE! SAVE 25%
$10.99

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

$8.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SCORCHER High-Performance Ignition Coil - Priced Each

ES#4781457 - 77-92001 - SCORCHER High-Performance Ignition Coil - Priced Each - Upgrade your ignition coils to ensure optimal ignition performance - AFE - BMW

Upgrade your ignition coils to ensure optimal ignition performance

Brand:
AFE - Corporate Logo
ES#:
4781457
Mfg#:
77-92001
Ships in 3 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.

$65.00

This product was last offered at the strikethrough price on
10-11-2026

$52.00 USD
Free Shipping
on orders $49 and up

Intake Temperature Sensor

ES#3023844 - 13621739510 - Intake Temperature Sensor - Monitors intake air temperature - Hella - BMW
ECS Tuning recommends this product.

Monitors intake air temperature

Brand:
Hella - Corporate Logo
ES#:
3023844
Mfg#:
13621739510
Back Ordered
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Plug Housing

ES#31215 - 12521427615 - Plug Housing - 2 POL - Genuine BMW - BMW MINI

2 POL

Brand:
Genuine BMW - Corporate Logo
ES#:
31215
Mfg#:
12521427615
In Stock
$5.99

This product was last offered at the strikethrough price on
06-08-2026

$5.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Negative Battery Cable T Bolt

ES#2738654 - 61128373946t - Negative Battery Cable T Bolt - Replace the T bolt for securing the battery cable without replacing the whole cable - URO - Audi BMW Volkswagen MINI

Replace the T bolt for securing the battery cable without replacing the whole cable 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2738654
Mfg#:
61128373946T
In Stock
$9.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Starter

ES#2535395 - 12417578684KT - Remanufactured Starter - Includes a $71.50 refundable core charge - Bosch - BMW

Includes a $71.50 refundable core charge We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/2002

Brand:
Bosch - Corporate Logo
ES#:
2535395
Mfg#:
12417578684KT
Ships in 6 Business Days
$307.99

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

$300.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coil Pack Wiring Harness

ES#30981 - 12517551908 - Coil Pack Wiring Harness - This is the harness that sends the ignition signal to the coils and makes them fire. - Genuine BMW - BMW

This is the harness that sends the ignition signal to the coils and makes them fire.

Brand:
Genuine BMW - Corporate Logo
ES#:
30981
Mfg#:
12517551908
Ships in 7 Business Days
3% off MSRP

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

$308.99

This product was last offered at the strikethrough price on
10-11-2026

$300.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Boost PRO UltraSafe Lithium 3000 Amp Jump Starter - NOCO

ES#4336376 - GB150 - Boost PRO UltraSafe Lithium 3000 Amp Jump Starter - NOCO - This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 9.0L engine or less and diesel vehicles up to 7.0L, up to 80 times on a single charge. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 9.0L engine or less and diesel vehicles up to 7.0L, up to 80 times on a single charge.

Brand:
NOCO - Corporate Logo
ES#:
4336376
Mfg#:
GB150
Ships in 8 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.

$374.99

This product was last offered at the strikethrough price on
10-11-2026

$299.99 USD
Free Shipping
on orders $49 and up

Crankshaft Position Sensor

ES#2813630 - 12141709616 - Crankshaft Position Sensor - Does not include O-ring - Hamburg Tech - BMW

Does not include O-ring We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813630
Mfg#:
12141709616
Ships in 2 Business Days
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#3520890 - 12141744492 - Crankshaft Position Sensor - Does not include O-ring - Holstein - BMW

Does not include O-ring

Brand:
Holstein - Corporate Logo
ES#:
3520890
Mfg#:
12141744492
In Stock
Limited Qty Sale
$29.99

This product was last offered at the strikethrough price on
10-11-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

GENIUS 6V / 12V 2 Amp Battery Charger - NOCO

ES#4031173 - GENIUS2 - GENIUS 6V / 12V 2 Amp Battery Charger - NOCO - The GENIUS2 is similar to the G1100, just better. It's 30% smaller and delivers 140% more power. And it's simpler and easier to use than ever before. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The GENIUS2 is similar to the G1100, just better. It's 30% smaller and delivers 140% more power. And it's simpler and easier to use than ever before.

Brand:
NOCO - Corporate Logo
ES#:
4031173
Mfg#:
GENIUS2
In Stock
23% off MSRP

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

$64.95

This product was last offered at the strikethrough price on
10-11-2026

$49.94 USD
Free Shipping
on orders $49 and up

Ignition Coil - Priced Each

ES#2813619 - 12131748017 - Ignition Coil - Priced Each - Get your engine working flawlessly with new ignition coils - Includes new coil and boot - Hamburg Tech - BMW

Get your engine working flawlessly with new ignition coils - Includes new coil and boot We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813619
Mfg#:
12131748017
In Stock at Vendor
$32.00 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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