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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Parts & Accessories

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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
Ships Today
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
07-08-2026

$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

Camshaft Position Sensor

ES#240369 - 12147518628 - Camshaft Position Sensor - Exhaust side - Febi - BMW

Exhaust side affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
240369
Mfg#:
12147518628
Ships on Oct 5, 2026
$48.99 USD
Free Shipping
on orders $49 and up
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

Accessory Belt - Air Conditioning Compressor

ES#10369 - 11281437450 - Accessory Belt - Air Conditioning Compressor - A/C Belt for your BMW - Continental - BMW

A/C Belt for your BMW 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 up to 09/2002

Brand:
Continental - Corporate Logo
ES#:
10369
Mfg#:
11281437450
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Vacuum Line

ES#3691613 - 11727574490 - Secondary Air Pump Vacuum Line - Replacement line - Rein - BMW

Replacement line affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
3691613
Mfg#:
11727574490
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pump Pulley Kit - With Belt

ES#2731606 - 001977ECS01KT - Aluminum Water Pump Pulley Kit - With Belt - Includes durable ECS Aluminum Water Pump Pulley in black, four retaining bolts and a Continental water pump belt - Assembled By ECS - BMW

Includes durable ECS Aluminum Water Pump Pulley in black, four retaining bolts and a Continental water pump belt 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#:
2731606
Mfg#:
001977ECS01KT
Back Ordered
Auto Notify
ON SALE!
$140.99

This product was last offered at the strikethrough price on
06-23-2026

$133.41 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Ground Cable Upgrade (12421737755)

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
In Stock
ON SALE! SAVE 20%
$29.99

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

$23.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor

ES#205328 - 12617508003 - Oil Level Sensor - Includes sealing o-ring - Hella - BMW

Includes sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hella - Corporate Logo
ES#:
205328
Mfg#:
12617508003
Back Ordered
$84.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Variable Engine Timing Solenoid Switch

ES#23108 - 11361432532 - Variable Engine Timing Solenoid Switch - Actuates the function of engine timing to improve efficiency, horsepower, and torque. Also known as the VANOS solenoid. - Genuine BMW - BMW

Actuates the function of engine timing to improve efficiency, horsepower, and torque. Also known as the VANOS solenoid. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23108
Mfg#:
11361432532
Ships in 3 Business Days
$587.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Hose - 1 Meter

ES#26414 - 11657803732 - Vacuum Hose - 1 Meter - Seal up your vacuum leak - Genuine BMW - BMW

Seal up your vacuum leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26414
Mfg#:
11657803732
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pro Dry S Air Filter

ES#518824 - 31-10015 - Pro Dry S Air Filter - Higher flow, higher performance - oil-free, washable and reuseable! - AFE - BMW

Higher flow, higher performance - oil-free, washable and reuseable! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
518824
Mfg#:
31-10015
In Stock
20% off MSRP

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

$121.99

This product was last offered at the strikethrough price on
07-08-2026

$97.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Gasket Set

ES#2550680 - 11129070990 - Valve Cover Gasket Set - From a high quality German gasket manufacturer - Elring - BMW

From a high quality German gasket manufacturer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date up to 09/2002

Brand:
Elring - Corporate Logo
ES#:
2550680
Mfg#:
11129070990
In Stock
$30.99 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 24, 2026
$1139.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain - Lower

ES#4472568 - 11311432176 - Timing Chain - Lower - Keep your engine running properly - Bremmen Parts - BMW

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
4472568
Mfg#:
11311432176
In Stock
ON SALE! SAVE 20%
$34.67

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

$27.74 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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