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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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Heavy Duty Ground Cable Upgrade (12421737755)

ES#4939982 - 059235LA01 - Heavy Duty Ground Cable Upgrade (12421737755) - Restore lasting electrical reliability to your E30, E36, or E46 with a high-quality, corrosion-proof ground strap engineered for long-term performance. - ECS - BMW

Restore lasting electrical reliability to your E30, E36, or E46 with a high-quality, corrosion-proof ground strap engineered for long-term performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4939982
Mfg#:
059235LA01
In Stock
ON SALE! SAVE 20%
$29.99

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

$23.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#4818555 - 12147539171 - Camshaft Position Sensor - Senses the position of the intake camshaft. New o-ring included to ensure a reliable, leak-free repair. - Bremmen Parts - BMW

Senses the position of the intake camshaft. New o-ring included to ensure a reliable, leak-free repair. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818555
Mfg#:
12147539171
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 20%
$89.99

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

$71.80 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#4941267 - 13627830359 - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Holstein - BMW

Restore fuel economy and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Holstein - Corporate Logo
ES#:
4941267
Mfg#:
13627830359
Ships in 1 Business Day
$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Plug-And-Play Alpha-N IAT Sensor Relocation Kit

ES#4304669 - 014579TMSKT1 - Turner Plug-And-Play Alpha-N IAT Sensor Relocation Kit - Reposition your intake air temperature sensor to maintain more accurate readings to maximize power output - Turner Motorsport - BMW

Reposition your intake air temperature sensor to maintain more accurate readings to maximize power output affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Alleviate heat soak on the street or track.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4304669
Mfg#:
014579TMSKT1
In Stock
ON SALE! SAVE 25%
$150.99

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

$113.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Battery Cable - Negative

ES#163623 - 61128373946 - Battery Cable - Negative - Connected to the negative battery terminal and grounds on the chassis - Genuine BMW - BMW

Connected to the negative battery terminal and grounds on the chassis affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
163623
Mfg#:
61128373946
In Stock
$58.99 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary 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

Alternator - 120amp

ES#2724217 - 12317831436 - Alternator - 120amp - Brand new unit with no core charge. - Valeo - BMW

Brand new unit with no core charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Valeo - Corporate Logo
ES#:
2724217
Mfg#:
12317831436
In Stock at Vendor
$508.99

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

$494.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Position Sensor - Priced Each

ES#5434636 - 13631402143 - Throttle Position Sensor - Priced Each - Hamburg Tech - BMW

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

Brand:
Hamburg Tech - Corporate Logo
ES#:
5434636
Mfg#:
13631402143
In Stock
$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor

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

Monitors coolant / oil temperature affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FAE - Corporate Logo
ES#:
2158111
Mfg#:
13621433076
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

GENIUS PRO 12V / 24V 50 Amp Battery Charger - NOCO

ES#4346392 - GENIUSPRO50 - GENIUS PRO 12V / 24V 50 Amp Battery Charger - NOCO - Similar to the G26000, 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 G26000, 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#:
4346392
Mfg#:
GENIUSPRO50
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.

$1125.99

This product was last offered at the strikethrough price on
07-03-2026

$899.99 USD
Free Shipping
on orders $49 and up

Boost Plus UltraSafe Lithium 1000 Amp Jump Starter - NOCO

ES#3984701 - GB40 - Boost Plus UltraSafe Lithium 1000 Amp Jump Starter - NOCO - This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 6.0L engine or less and diesel vehicles up to 3.0L, up to 20 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 6.0L engine or less and diesel vehicles up to 3.0L, up to 20 times on a single charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
3984701
Mfg#:
GB40
In Stock
20% off MSRP

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

$124.99

This product was last offered at the strikethrough price on
07-03-2026

$99.99 USD
Free Shipping
on orders $49 and up

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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary 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

Spark Plugs - Set Of Six

ES#2167999 - 12120022902 - Spark Plugs - Set Of Six - Keep your motor running strong with a set of new spark plugs. - Genuine BMW - BMW

Keep your motor running strong with a set of new spark plugs. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2167999
Mfg#:
12120022902
In Stock
$215.99 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
36174
Mfg#:
16116762417
In Stock
$5.98

This product was last offered at the strikethrough price on
01-07-2026

$5.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3/8"/9mm Band Hose Clamp - 90-110mm

ES#2730259 - 003402ECS06A-13 - 3/8"/9mm Band Hose Clamp - 90-110mm - German-style 304 stainless hose clamp - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

German-style 304 stainless hose clamp affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2730259
Mfg#:
003402ECS06A-13
In Stock
ON SALE! SAVE 40%
$6.99

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

$4.19 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4057015
Mfg#:
12317831436KT2
Back Ordered
Auto Notify
ON SALE!
$834.73

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

$806.84 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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