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BMW E39 525i M54 2.5L Engine Electrical Parts

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ES#2535383 - 12317501687KT - Remanufactured Alternator - 90amp - Includes a $95 Core Charge - Bosch - BMW

Includes a $95 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#:
2535383
Mfg#:
12317501687KT
In Stock at Vendor
$394.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4858864 - 201-0411 - Precision Raceworks Ethanol Sensor Breakout Harness - This breakout harness isolates the signal wire from your flex fuel sensor, allowing an external gauge to access the signal without modifying your existing flex fuel harness. - Precision Raceworks - Audi BMW Volkswagen

This breakout harness isolates the signal wire from your flex fuel sensor, allowing an external gauge to access the signal without modifying your existing flex fuel harness. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4858864
Mfg#:
201-0411
In Stock
$35.99

This product was last offered at the strikethrough price on
01-22-2026

$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4316514 - 12147518628 - Camshaft Position Sensor - Exhaust side, includes a new o-ring seal - Bremmen Parts - BMW

Exhaust side, includes a new o-ring seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316514
Mfg#:
12147518628
In Stock
ON SALE! SAVE 16%
$31.99

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

$26.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2574767 - 13621703993 - Coolant Temperature Sensor - Monitors coolant temperature - FAE - BMW

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

Brand:
FAE - Corporate Logo
ES#:
2574767
Mfg#:
13621703993
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31215 - 12521427615 - Plug Housing - 2 POL - Genuine BMW - BMW MINI

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

Brand:
Genuine BMW - Corporate Logo
ES#:
31215
Mfg#:
12521427615
Ships in 1-2 days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4690100 - 12317501687 - Alternator - 90 Amp (Compact) - No core charge required! - Vaico Q+ - BMW

No core charge required! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vaico Q+ - Corporate Logo
ES#:
4690100
Mfg#:
12317501687
Special Order: No Guaranteed ETA
$329.99 USD
Free Shipping
on orders $49 and up
ES#4007243 - 124123547095KT - Re-manufactured Starter Motor - Priced Each  - Price Included a $60.00 Core Charge - Bosch - BMW

Price Included a $60.00 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#:
4007243
Mfg#:
124123547095KT
Back Ordered
$346.99

This product was last offered at the strikethrough price on
04-09-2026

$327.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2950498 - TTN45227 - Titan 96-Piece ATO Blade Fuse Assortment - Convenient re-sealable plastic case - Titan - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Convenient re-sealable plastic case affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Titan - Corporate Logo
ES#:
2950498
Mfg#:
TTN45227
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2167421 - 12317501599 - 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#:
2167421
Mfg#:
12317501599
Back Ordered
$323.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4781457 - 77-92001 - SCORCHER High-Performance Ignition Coil - Priced Each - Upgrade your ignition coils to ensure optimal ignition performance - AFE - BMW

Upgrade your ignition coils to ensure optimal ignition performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
4781457
Mfg#:
77-92001
In Stock at Vendor
20% off MSRP

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

$65.00

This product was last offered at the strikethrough price on
01-28-2026

$52.00 USD
Free Shipping
on orders $49 and up
ES#2535395 - 12417578684KT - Remanufactured Starter - Includes a $71.50 refundable core charge - Bosch - BMW

Includes a $71.50 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/2002

Brand:
Bosch - Corporate Logo
ES#:
2535395
Mfg#:
12417578684KT
Ships in 6 Business Days
$307.99

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

$300.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4336376 - GB150 - Boost PRO UltraSafe Lithium 3000 Amp Jump Starter - NOCO - This compact, 12V spark-proof jump starter is great for jumping gas vehicles with a 9.0L engine or less and diesel vehicles up to 7.0L, up to 80 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 9.0L engine or less and diesel vehicles up to 7.0L, up to 80 times on a single charge. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4336376
Mfg#:
GB150
Ships in 9 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.

$374.99

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

$299.99 USD
Free Shipping
on orders $49 and up
ES#3520890 - 12141744492 - Crankshaft Position Sensor - Does not include O-ring - Holstein - BMW

Does not include O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Holstein - Corporate Logo
ES#:
3520890
Mfg#:
12141744492
Ships in 2 Business Days
$29.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4336355 - GENIUS1 - GENIUS 6V / 12V 1 Amp Battery Charger - NOCO - The GENIUS1 is similar to the G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. - NOCO - Audi BMW Volkswagen Mercedes Benz MINI Porsche

The GENIUS1 is similar to the G750, just better. It's 35% smaller and delivers 35% more power. And it's simpler and easier to use than ever before. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
NOCO - Corporate Logo
ES#:
4336355
Mfg#:
GENIUS1
In Stock
25% off MSRP

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

$39.95

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

$29.94 USD
Free Shipping
on orders $49 and up
ES#3514231 - 20244 - Battery Clamp Grease - 50 grams - Excellent corrosion protection for your battery and other connections - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Excellent corrosion protection for your battery and other connections affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514231
Mfg#:
20244
In Stock
4% off MSRP

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

$6.95

This product was last offered at the strikethrough price on
02-24-2026

$6.69 USD
Free Shipping
on orders $49 and up
ES#30113 - 12421436885 - Positive Battery Cable - Battery cable that carries the power from your battery terminal - Genuine BMW - BMW

Battery cable that carries the power from your battery terminal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
30113
Mfg#:
12421436885
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.

$292.99

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

$282.99 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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