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BMW E30 M3 S14 2.3L Engine Electrical Parts

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ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 6 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shut down quickly & remotely - required by many racing organizations affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
2839899
Mfg#:
EL25RED
Ships in 5 Business Days
$45.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4272132 - 12522466585 - Socket Terminal Contact Wire SLK 2.8 - Priced Each - 0.5-1.0mm , includes wire - Genuine MINI - BMW MINI

0.5-1.0mm , includes wire affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine MINI - Corporate Logo
ES#:
4272132
Mfg#:
12522466585
In Stock
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4492815 - 40-339 - CTEK CT5 Power Sport  - The CT5 POWERSPORT (part# 40-339) makes sure you're ready for action every time. - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The CT5 POWERSPORT (part# 40-339) makes sure you're ready for action every time. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4492815
Mfg#:
40-339
In Stock at Vendor
$84.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4001088 - 13621273277 - Throttle Position Sensor  - Found on the throttle housing - Facet - BMW

Found on the throttle housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Facet - Corporate Logo
ES#:
4001088
Mfg#:
13621273277
Ships in 1 Business Day
$87.99

This product was last offered at the strikethrough price on
03-17-2026

$84.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3582767 - 61131372529 - Fuse - 30 amp - Used in the fuse box - Genuine BMW - BMW MINI

Used in the fuse box affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3582767
Mfg#:
61131372529
Ships in 1 day
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2828538 - 61311378320 - Coolant Level Sensor - This sensor is critical in keeping tabs of your cooling system's health. - URO - BMW

This sensor is critical in keeping tabs of your cooling system's health. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2828538
Mfg#:
61311378320
Ships in 1 Business Day
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31904 - 12631710726 - Relay - 5-Diode Relay - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
31904
Mfg#:
12631710726
Ships in 1 day
4% off MSRP

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

$72.99

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

$69.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2863068 - 61311378297 - Relay  - Replacement relay for the typical white-green and orange relays found in your vehicle - Rein - BMW MINI

Replacement relay for the typical white-green and orange relays found in your vehicle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2863068
Mfg#:
61311378297
Ships in 3 Business Days
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#29259 - 12311276227 - Bush - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
29259
Mfg#:
12311276227
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.

$31.99

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

$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4389994 - 12311722979 - Alternator Ball Bearing - Used when performing an alternator rebuild (Measurements:47x17x14) - SKF - BMW

Used when performing an alternator rebuild (Measurements:47x17x14) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SKF - Corporate Logo
ES#:
4389994
Mfg#:
12311722979
Ships in 9 Business Days
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4492820 - 40-060 - Bumper 300 - Don't scratch your paint with your battery tender. - CTEK - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Don't scratch your paint with your battery tender. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTEK - Corporate Logo
ES#:
4492820
Mfg#:
40-060
In Stock at Vendor
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2503735 - 61136920094 - Flat-type Connector - Priced each  - 6-10mm - Genuine BMW - BMW

6-10mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2503735
Mfg#:
61136920094
Ships in 1 day
13% off MSRP

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

$7.99

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

$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3604639 - EL-LA4578 - Battery Disconnect Switch - 4 Terminal - Quickly shut down your battery in an emergency. - Rennline - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Quickly shut down your battery in an emergency. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
3604639
Mfg#:
EL-LA4578
Ships in 4 Business Days
$55.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#29504 - 12311727756 - Alternator Brush Set - Get your alternator working again - Genuine BMW - BMW

Get your alternator working again affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
29504
Mfg#:
12311727756
Ships in 1 day
4% off MSRP

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

$25.99

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

$24.99 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.

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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