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BMW E46 M3 S54 3.2L

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BMW E46 M3 S54 3.2L Engine Electrical Parts

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Alternator - 120amp

ES#2724217 - 12317831436 - 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!

Brand:
Valeo - Corporate Logo
ES#:
2724217
Mfg#:
12317831436
In Stock at Vendor
$522.00

This product was last offered at the strikethrough price on
07-16-2026

$476.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Schwaben Self-Adjusting Wire Crimper & Stripper Pliers

ES#4826864 - 3774SCH01A - Schwaben Self-Adjusting Wire Crimper & Stripper Pliers - Make wiring harness repairs with ease! Featuring adjustable, ratcheting wire stripper jaws for efficient insulation removal. - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Make wiring harness repairs with ease! Featuring adjustable, ratcheting wire stripper jaws for efficient insulation removal. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Schwaben - Corporate Logo
ES#:
4826864
Mfg#:
3774SCH01A
In Stock
ON SALE! SAVE 15%
$22.99

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

$19.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGT Sensor

ES#27307 - 11787831624 - EGT Sensor - Exhaust gas temperature sensor for the S54 engine - Genuine BMW - BMW

Exhaust gas temperature sensor for the S54 engine

Brand:
Genuine BMW - Corporate Logo
ES#:
27307
Mfg#:
11787831624
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.

$162.99

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

$153.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Position Sensor - Priced Each

ES#4871128 - 13637840383 - Throttle Position Sensor - Priced Each - This is the sensor used on individual throttle bodies engines - URO - BMW

This is the sensor used on individual throttle bodies engines 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
2 required per vehicle, One on throttle actuator and one on end of throttle body assembly

Brand:
URO - Corporate Logo
ES#:
4871128
Mfg#:
13637840383
Back Ordered
$41.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor

ES#4316486 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - Bavarian Autosport - BMW

Monitors coolant / oil temperature 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316486
Mfg#:
13621433076
In Stock
ON SALE! SAVE 20%
$14.99

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

$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3 Pin Connector

ES#4772596 - 12527519996 - 3 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4772596
Mfg#:
12527519996
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

2 Pin Connector

ES#4772597 - 61132359999 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the coolant level sensor. - ECS - BMW MINI

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

Brand:
ECS - Corporate Logo
ES#:
4772597
Mfg#:
61132359999
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

3 Pin Connector

ES#4772589 - 12521433915 - 3 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the engine oil level sensor. - ECS - BMW

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

Brand:
ECS - Corporate Logo
ES#:
4772589
Mfg#:
12521433915
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

Oil Level Sensor

ES#2561360 - 12617508003 - Oil Level Sensor - Turn that oil level light off - URO - BMW

Turn that oil level light off 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2561360
Mfg#:
12617508003
Back Ordered
$63.99 USD
Free Shipping
on orders $49 and up

Oil Level Sensor O-Ring

ES#3478331 - 12611744292 - Oil Level Sensor O-Ring - Used to seal sensor to the oil pan - Elring - BMW

Used to seal sensor to the oil pan 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3478331
Mfg#:
12611744292
In Stock
$11.71

This product was last offered at the strikethrough price on
07-08-2026

$5.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator replacement kit

ES#4057015 - 12317831436KT2 - Alternator replacement kit - Includes everything needed for a complete alternator replacement, including a new alternator with no core charge and a belt service kit. - Assembled By ECS - BMW

Includes everything needed for a complete alternator replacement, including a new alternator with no core charge and a belt service kit. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4057015
Mfg#:
12317831436KT2
Back Ordered
ON SALE!
$860.82

This product was last offered at the strikethrough price on
07-16-2026

$800.92 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Screw Cap

ES#36174 - 16116762417 - Screw Cap - Seal cap for the fuel pump top or filter - Genuine BMW - BMW MINI

Seal cap for the fuel pump top or filter

Brand:
Genuine BMW - Corporate Logo
ES#:
36174
Mfg#:
16116762417
In Stock
$5.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

SCORCHER High-Performance Ignition Coil - 6 Pack

ES#4781458 - 77-92001-MC - SCORCHER High-Performance Ignition Coil - 6 Pack - 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#:
4781458
Mfg#:
77-92001-MC
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.

$327.99

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

$262.00 USD
Free Shipping
on orders $49 and up

Temperature Sensor

ES#2158111 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - FAE - BMW

Monitors coolant / oil temperature

Brand:
FAE - Corporate Logo
ES#:
2158111
Mfg#:
13621433076
In Stock
$16.99

This product was last offered at the strikethrough price on
09-25-2026

$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Engine Wiring Harness

ES#31076 - 12517831646 - E46 M3 Engine Wiring Harness - Wiring harness for the engine control module - Genuine BMW - BMW

Wiring harness for the engine control module

Brand:
Genuine BMW - Corporate Logo
ES#:
31076
Mfg#:
12517831646
Ships in 6 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.

$782.99

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

$762.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Manifold Oxygen Sensor - Front Position/Pre-Cat

ES#27214 - 11781743994 - Front Manifold Oxygen Sensor - Front Position/Pre-Cat - Located in the front position of the exhaust manifold for cylinders 1-3 on the S54 engine - Genuine BMW - BMW

Located in the front position of the exhaust manifold for cylinders 1-3 on the S54 engine

Brand:
Genuine BMW - Corporate Logo
ES#:
27214
Mfg#:
11781743994
Ships in 3 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.

$404.99

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

$380.99 USD
Free Shipping
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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