Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E39 525i M54 2.5L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle BMW E39 525i M54 2.5L
Your Vehicle BMW E39 525i M54 2.5L
Change Clear

BMW E39 525i M54 2.5L Engine Parts & Accessories

Sort By
Filter By
Return to Top

Coolant Temperature Sensor

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

Oil Pump Chain

ES#261849 - 11417576915 - Oil Pump Chain - Responsible for driving the oil pump - Genuine BMW - BMW

Responsible for driving the oil pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
261849
Mfg#:
11417576915
In Stock
$34.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mahle Piston

ES#21445 - 11257512526 - Mahle Piston - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
21445
Mfg#:
11257512526
Ships in 7 Business Days
2% off MSRP

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

$388.99

This product was last offered at the strikethrough price on
07-09-2026

$380.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#2813630 - 12141709616 - Crankshaft Position Sensor - Does not include O-ring - Hamburg Tech - BMW

Does not include O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813630
Mfg#:
12141709616
In Stock
ON SALE!
$49.99

This product was last offered at the strikethrough price on
06-25-2026

$47.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance water pump kit

ES#2842165 - 888010330KT - High Performance water pump kit - Featuring Stewart High Performance water pump, GatesRacing belt, and heavy duty ECS water pump pulley - Assembled By ECS - BMW

Featuring Stewart High Performance water pump, GatesRacing belt, and heavy duty ECS water pump pulley 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#:
2842165
Mfg#:
888010330KT
Ships on Aug 24, 2026
Auto Notify
ON SALE!
$404.53

This product was last offered at the strikethrough price on
06-15-2026

$377.86 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Expanding Rivet - Pack Of 25

ES#4940098 - 17111712963 - Expanding Rivet - Pack Of 25 - Fan shroud expanding clamp/rivet - Bremmen Parts - BMW

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

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940098
Mfg#:
17111712963
In Stock
ON SALE! SAVE 22%
$23.99

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

$18.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Tank Level Sending Unit

ES#4691042 - 16146752370 - Fuel Tank Level Sending Unit - High quality aftermarket sending unit assembly - URO - BMW

High quality aftermarket sending unit assembly 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:
URO - Corporate Logo
ES#:
4691042
Mfg#:
16146752370
Ships in 1 Business Day
$124.99 USD
Free Shipping
on orders $49 and up

Bearing Bolt

ES#22076 - 11311703718 - Bearing Bolt - This bolt mounts to the guide rail in the lower timing assembly - Genuine BMW - BMW

This bolt mounts to the guide rail in the lower timing assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
22076
Mfg#:
11311703718
In Stock
6% off MSRP

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

$30.35

This product was last offered at the strikethrough price on
07-09-2026

$28.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring - Priced Each

ES#2725345 - 13641437487KT - Fuel Injector O-Ring - Priced Each - Fuel rail to injector O-ring - Elring - BMW MINI

Fuel rail to injector O-ring 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:
Elring - Corporate Logo
ES#:
2725345
Mfg#:
13641437487KT
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Expansion Freeze Plug - 45mm Diameter - Priced Each

ES#17625 - 11111714712 - Engine Expansion Freeze Plug - 45mm Diameter - Priced Each - Replace your missing freeze plugs today! - Genuine BMW - BMW

Replace your missing freeze plugs today! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
17625
Mfg#:
11111714712
Ships in 2 Business Days
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rennline OE+ Upgraded Ignition Coil - Priced Each

ES#4940148 - M138 - Rennline OE+ Upgraded Ignition Coil - Priced Each - Regain power loss & fuel economy from worn or failed ignition coils! - Rennline - BMW MINI

Regain power loss & fuel economy from worn or failed ignition coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
4940148
Mfg#:
M138
Ships in 5 Business Days
$37.00 USD
Free Shipping
on orders $49 and up

Hollow Bolt - Priced Each

ES#2138017 - 07119907291 - Hollow Bolt - Priced Each - M10X1 - Genuine BMW - BMW

M10X1 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2138017
Mfg#:
07119907291
In Stock
ON SALE!
$15.99

This product was last offered at the strikethrough price on
06-15-2026

$14.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Freeze Plug

ES#18320 - 11121733403 - Freeze Plug - 22.0MM - Genuine BMW - BMW

22.0MM affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
18320
Mfg#:
11121733403
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Crankcase Breather Element

ES#4866071 - 11617533400 - Engine Crankcase Breather Element - Commonly referred to as the "oil separator" or PCV - Hengst - BMW
ECS Tuning recommends this product.

Commonly referred to as the "oil separator" or PCV 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!
Superior performance for both warm and cold climates

Brand:
Hengst - Corporate Logo
ES#:
4866071
Mfg#:
11617533400
In Stock
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Filter

ES#4070221 - 13321709535 - Fuel Filter - With internal pressure regulator - Mahle - BMW

With internal pressure regulator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle - Corporate Logo
ES#:
4070221
Mfg#:
13321709535
In Stock at Vendor
$202.76

This product was last offered at the strikethrough price on
07-02-2026

$184.34 USD
Free Shipping
on orders $49 and up

Oil Pump

ES#4723746 - 11417501568 - Oil Pump - Keep your engine well lubricated - Vaico - BMW

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

Brand:
Vaico - Corporate Logo
ES#:
4723746
Mfg#:
11417501568
In Stock at Vendor
$377.99

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

$366.99 USD
Free Shipping
on orders $49 and up

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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings