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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Engine Parts & Accessories

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Magnetic Sump/Oil Pan Plug

ES#4731975 - MMR03-0504 - Magnetic Sump/Oil Pan Plug - Removes metal particles suspended in your engine oil - MMX Performance - BMW MINI

Removes metal particles suspended in your engine oil affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MMX Performance - Corporate Logo
ES#:
4731975
Mfg#:
MMR03-0504
In Stock
$37.99 USD
Free Shipping
on orders $49 and up

ECS Red Kevlar Accessory Belt - Water Pump/Alternator

ES#4661032 - 6PK1555 - ECS Red Kevlar Accessory Belt - Water Pump/Alternator - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production date from 09/1991

Brand:
ECS - Corporate Logo
ES#:
4661032
Mfg#:
6PK1555
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#2777575 - 17117639022 - Expansion Tank Cap - Replace worn or missing pieces. - Genuine BMW - BMW

Replace worn or missing pieces. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2777575
Mfg#:
17117639022
In Stock
21% off MSRP

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

$34.96

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

$27.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Timing Chain Guide Rail

ES#4472573 - 11311726480 - Lower Timing Chain Guide Rail - Replacement guide rail for required maintenance - Bremmen Parts - BMW

Replacement guide rail for required maintenance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4472573
Mfg#:
11311726480
Ships on Aug 14, 2026
Auto Notify
ON SALE! SAVE 20%
$19.37

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

$15.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oversize Valve Guide - Priced Each

ES#3522483 - 11121735533 - Oversize Valve Guide - Priced Each - 12.56x6.00mm - Canyon Engine - BMW

12.56x6.00mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Canyon Engine - Corporate Logo
ES#:
3522483
Mfg#:
11121735533
In Stock at Vendor
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW | Sensor, throttle position

ES#4852616 - 13631721456 - BMW | Sensor, throttle position - Vemo Q+ - BMW

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

Brand:
Vemo Q+ - Corporate Logo
ES#:
4852616
Mfg#:
13631721456
In Stock at Vendor
$87.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VANOS Solenoid Switch

ES#23146 - 11361738494 - VANOS Solenoid Switch - Used to activate and deactivate VANOS - Genuine BMW - BMW

Used to activate and deactivate VANOS affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23146
Mfg#:
11361738494
Ships in 4 Business Days
$407.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose

ES#4338188 - 2101 - 12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose - ECS - Audi BMW Volkswagen Mercedes Benz

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

Brand:
ECS - Corporate Logo
ES#:
4338188
Mfg#:
2101
In Stock
ON SALE! SAVE 25%
$33.99

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

$25.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rod Bearing Replacement Kit

ES#3245698 - 11241284849KT4 - Performance Rod Bearing Replacement Kit - Includes everything needed for a rod bearing service - with WPC treated rod bearings - Assembled By ECS - BMW

Includes everything needed for a rod bearing service - with WPC treated rod bearings 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#:
3245698
Mfg#:
11241284849KT4
In Stock
ON SALE!
$434.83

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

$402.79 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

BMW Engine Oil Pump Rotor

ES#23554 - 11411748098 - BMW Engine Oil Pump Rotor - Necessary to build oil pressure - Genuine BMW - BMW

Necessary to build oil pressure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23554
Mfg#:
11411748098
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.

$113.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#3676691 - 4442559 - Fuel Filter - Keep your fuel system clean and debris free - Hengst - BMW
ECS Tuning recommends this product.

Keep your fuel system clean and debris free 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! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3676691
Mfg#:
4442559
In Stock
$17.99 USD
Free Shipping
on orders $49 and up

Crankshaft Position Sensor - Bavarian Autosport

ES#3673342 - 52380 - Crankshaft Position Sensor - Bavarian Autosport - A bad crank position sensor will commonly cause a no-start situation. - Bavarian Autosport - BMW

A bad crank position sensor will commonly cause a no-start situation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For model year 1991-1995

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3673342
Mfg#:
52380
In Stock
ON SALE! SAVE 20%
$48.99

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

$39.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt - M50/52 S52

ES#4661020 - 5PK906 - Performance Kevlar Reinforced Accessory Belt - M50/52 S52 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11281437449, 11281437873, and 11281470024 - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Replaces BMW # 11281437449, 11281437873, and 11281470024 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4661020
Mfg#:
5PK906
In Stock
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Position Sensor

ES#5425894 - 13631721456 - Throttle Position Sensor - Found on the throttle housing - Hamburg Tech - BMW

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

Brand:
Hamburg Tech - Corporate Logo
ES#:
5425894
Mfg#:
13631721456
Ships in 1 Business Day
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52

ES#4335467 - VAC-HPCD-M50-TR - VAC Harmonic SuperDamper By ATI - M50/S50/M52/S52 - Isolate harmonics before they can destroy your engine - ATI Performance Products - BMW

Isolate harmonics before they can destroy your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use only with OBD1 engine management systems.

Brand:
ATI Performance Products - Corporate Logo
ES#:
4335467
Mfg#:
VAC-HPCD-M50-TR
Ships on Jul 21, 2026
$1139.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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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