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BMW M3 Engine Electrical Parts

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ES#127371 - 51711380392 - E30 M3 Engine Wiring Harness Cover - Found on the passenger side firewall - Genuine BMW - BMW

Found on the passenger side firewall affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
127371
Mfg#:
51711380392
Ships in 1 day
$73.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
ES#27778 - 12120032273 - Spark Plug  - Priced Each - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
27778
Mfg#:
12120032273
In Stock
27% off MSRP

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

$36.21

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

$26.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2842169 - 11727838313 - Air Pump - An essential part of your vehicle's emissions system - Pierburg - BMW

An essential part of your vehicle's emissions system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
2842169
Mfg#:
11727838313
Ships in 1 day
$432.38 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3604198 - 13621703275 - Mass Air Flow Sensor (MAF) - Clear codes, restore performance - Bremi - BMW

Clear codes, restore performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bremi - Corporate Logo
ES#:
3604198
Mfg#:
13621703275
In Stock
$175.00

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

$170.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

990mm - cure your poor gas mileage by replacing your worn oxygen sensors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
5376161
Mfg#:
11781427884
In Stock
$289.99

This product was last offered at the strikethrough price on
12-31-2025

$210.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
Ships in 3 Business Days
ON SALE! SAVE 42%
$39.99

This product was last offered at the strikethrough price on
01-03-2026

$23.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2797603 - 12637614585 - Integrated Supply Module - Located on the right front of the engine bay. - Genuine BMW - BMW

Located on the right front of the engine bay. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2797603
Mfg#:
12637614585
Ships in 1 day
3% off MSRP

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

$437.99

This product was last offered at the strikethrough price on
06-04-2026

$423.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
ES#34346 - 13621703275 - Mass Air Flow Sensor (MAF) - Also commonly called mass air flow sensor - Genuine BMW - BMW
ECS Tuning recommends this product.

Also commonly called mass air flow sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34346
Mfg#:
13621703275
Back Ordered
5% off MSRP

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

$875.99

This product was last offered at the strikethrough price on
06-04-2026

$830.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
Ships in 7 Business Days
ON SALE!
$834.73

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

$811.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#127370 - 51711380391 - Engine Wiring Harness Cover - Top portion of the plastic engine wiring harness cover - Genuine BMW - BMW

Top portion of the plastic engine wiring harness cover affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
127370
Mfg#:
51711380391
In Stock
$67.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4316486 - 13621433076 -  Temperature Sensor - Monitors coolant / oil temperature - Bavarian Autosport - BMW

Monitors coolant / oil temperature affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4316486
Mfg#:
13621433076
Ships in 1-3 days
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
ES#3470052 - 12412354709KT2 - Remanufactured Starter with Mounting Hardware - Includes a $200 refundable core charge - Genuine BMW - BMW

Includes a $200 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Does not have threaded mounting holes - Includes Mounting Hardware

Brand:
Genuine BMW - Corporate Logo
ES#:
3470052
Mfg#:
12412354709KT2
Ships in 4 Business Days
$814.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4810317 - 200.1058 - ReFlex+ Plug-N-Play Harness Kit - Tensility Motorsport - TMS has created a true plug and play harness kit for Gen 2 B58 and S58 cars! - Motiv Motorsports - BMW

TMS has created a true plug and play harness kit for Gen 2 B58 and S58 cars! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810317
Mfg#:
200.1058
Ships in 4 Business Days
$794.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#129979 - 51718237364 - E46 Battery Tray - For trunk mounted batteries - Genuine BMW - BMW

For trunk mounted batteries affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
129979
Mfg#:
51718237364
In Stock
2% off MSRP

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

$90.99

This product was last offered at the strikethrough price on
06-04-2026

$88.99 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.

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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