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BMW E39 525i M54 2.5L Engine Electrical Parts

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ES#2167423 - AL0703X - Remanufactured Alternator - 120amp - Includes $65.00 refundable core charge - Bosch - BMW

Includes $65.00 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2167423
Mfg#:
AL0703X
Ships on Jul 1, 2026
$844.99

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

$821.99 USD
Free Shipping
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#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#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
For vehicles with production date up to 09/2002

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#4940639 - 0986017110 - Remanufactured Starter Motor - **CLEARANCE ITEM** Remanufactured starter with no core charge - Discounted while supplies last! - Bosch - BMW

**CLEARANCE ITEM** Remanufactured starter with no core charge - Discounted while supplies last! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bosch - Corporate Logo
ES#:
4940639
Mfg#:
0986017110
In Stock
Limited Qty Sale
$178.99

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

$158.99 USD
Free Shipping
on orders $49 and up
ES#2723839 - 12412354709KT - Remanufactured Starter - 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.
For vehicles with production date up to 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2723839
Mfg#:
12412354709KT
Ships in 3 Business Days
$786.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2895697 - 12147518628kit - Camshaft Position Sensor - Exhaust side - Vemo - BMW

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

Brand:
Vemo - Corporate Logo
ES#:
2895697
Mfg#:
12147518628KIT
In Stock at Vendor
$89.99

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

$86.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3604762 - 12317501690KT - Alternator - 120A - Price included a core charge of $181.50 - Genuine BMW - BMW

Price included a core charge of $181.50 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3604762
Mfg#:
12317501690KT
Ships in 3 Business Days
$773.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772596
Mfg#:
12527519996
In Stock
ON SALE! SAVE 39%
$10.99

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

$6.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#27153 - 11781433940 - Oxygen Sensor - Priced Each - 2 Required in each application - Genuine BMW - BMW

2 Required in each application affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27153
Mfg#:
11781433940
Ships in 3 Business Days
7% 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
06-04-2026

$377.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3086092 - 12131712219T8KT - Ignition Coil - Set of 8 - Bosch - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3086092
Mfg#:
12131712219T8KT
In Stock
$247.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#30243 - 12421737755 - Ground Cable - Length: 380mm - Genuine BMW - BMW

Length: 380mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
30243
Mfg#:
12421737755
In Stock
5% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
03-29-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2801445 - 12618611273 - OIL PRESSURE SWITCH  - Replacement oil pressure switch found on most BMWs - Rein - BMW

Replacement oil pressure switch found on most BMWs 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#:
2801445
Mfg#:
12618611273
In Stock
$11.99

This product was last offered at the strikethrough price on
04-20-2026

$7.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#37224 - 16136756440 - Leak Diagnosis Pump - Located under the vehicle, near the transmission bellhousing or in the rear. - Genuine BMW - BMW

Located under the vehicle, near the transmission bellhousing or in the rear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37224
Mfg#:
16136756440
Ships in 3 Business Days
7% off MSRP

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

$258.99

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

$241.99 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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