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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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Hydraulic Alternator Belt Tensioner Assembly

ES#3129598 - 11287838797 - Hydraulic Alternator Belt Tensioner Assembly - Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley - URO - BMW

Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley 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#:
3129598
Mfg#:
11287838797
In Stock
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Position Sensor

ES#2570298 - 12141709616 - Crankshaft Position Sensor - Does not include O-ring - Delphi - BMW

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

Brand:
Delphi - Corporate Logo
ES#:
2570298
Mfg#:
12141709616
In Stock
$97.99

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

$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Assembly

ES#2162740 - 11281427252 - Mechanical Alternator Belt Tensioner Assembly - Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. - Ina - BMW
ECS Tuning recommends this product.

Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with automatic transmission only

Brand:
Ina - Corporate Logo
ES#:
2162740
Mfg#:
11281427252
In Stock
$54.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supersprint Section 1 Metallic Sport Cats

ES#3054658 - 785502 - Supersprint Section 1 Metallic Sport Cats - A more free flowing option - Supersprint - BMW

A more free flowing option affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3054658
Mfg#:
785502
Ships in 3 Business Days
$3260.99 USD
Free Shipping

VANOS Refresh Kit

ES#2763229 - 1136143253KT - VANOS Refresh Kit - Includes necessary parts to get your VANOS system sealed up and working again - Assembled By ECS - BMW

Includes necessary parts to get your VANOS system sealed up and working again 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#:
2763229
Mfg#:
1136143253KT
Ships on Aug 4, 2026
Auto Notify
ON SALE! SAVE 20%
$162.99

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

$130.32 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly Longtime High Tech Oil Change Kit / Inspection I

ES#3424123 - m50OCIlm - Liqui Moly Longtime High Tech Oil Change Kit / Inspection I - Everything you need for a comprehensive oil service, including Liqui Moly oil and Hengst filter - Assembled By ECS - BMW

Everything you need for a comprehensive oil service, including Liqui Moly oil and Hengst filter 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#:
3424123
Mfg#:
M50OCILM
In Stock
ON SALE!
$104.99

This product was last offered at the strikethrough price on
03-09-2026

$103.10 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cylinder Head Installation Kit

ES#2975759 - 11120141055 - Cylinder Head Installation Kit - Choose a head gasket to make this a complete top end kit - Elring - BMW

Choose a head gasket to make this a complete top end kit 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 from 09/2002

Brand:
Elring - Corporate Logo
ES#:
2975759
Mfg#:
11120141055
In Stock
$327.99

This product was last offered at the strikethrough price on
06-11-2026

$263.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

SCORCHER High-Performance Ignition Coil - Set Of 6

ES#5396075 - 77-92013-MC - SCORCHER High-Performance Ignition Coil - Set Of 6 - SCORCHER High-Performance Ignition Coils produce a high energy spark that ensures complete combustion from idle to redline - AFE - BMW

SCORCHER High-Performance Ignition Coils produce a high energy spark that ensures complete combustion from idle to redline affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/2002

Brand:
AFE - Corporate Logo
ES#:
5396075
Mfg#:
77-92013-MC
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.

$327.99

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

$262.00 USD
Free Shipping
on orders $49 and up

Idle Control Valve

ES#4781516 - 13411744713 - Idle Control Valve - An integral part of the air intake system - URO - BMW

An integral part of the air intake system 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#:
4781516
Mfg#:
13411744713
In Stock
$104.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Valve Stem Seal Kit

ES#4346287 - vs-vbm6-6cylKT - Upgraded Valve Stem Seal Kit - Includes all the valve stems needed for repairing, replacing, or upgrading your BMW's valves and stem seals! - Supertech - BMW

Includes all the valve stems needed for repairing, replacing, or upgrading your BMW's valves and stem seals! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4346287
Mfg#:
VS-VBM6-6CYLKT
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Blade

ES#2534633 - 11521712058 - Fan Blade - Replace your brittle fan before it sends a blade through your radiator - URO - BMW

Replace your brittle fan before it sends a blade through your radiator 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#:
2534633
Mfg#:
11521712058
In Stock
$32.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#3672423 - 12137571643A - Ignition Coil - Priced Each - Give your engine a new spark. - Bavarian Autosport - BMW MINI

Give your engine a new spark. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 09/2002

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3672423
Mfg#:
12137571643A
In Stock
ON SALE! SAVE 20%
$37.99

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

$30.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idle Control Valve Kit

ES#2762775 - 13411744713KT - Idle Control Valve Kit - An integral part of the air intake system - Assembled By ECS - BMW

An integral part of the air intake system 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#:
2762775
Mfg#:
13411744713KT
Ships in 2 Business Days
ON SALE! SAVE 34%
$171.99

This product was last offered at the strikethrough price on
02-27-2026

$113.92 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hollow Bolt

ES#2597888 - 32416852469 - Hollow Bolt - M14x1.5x26 - Genuine BMW - BMW

M14x1.5x26 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2597888
Mfg#:
32416852469
In Stock
9% off MSRP

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

$20.41

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

$18.67 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E39 Fuel Pump

ES#2816701 - 16146752368 - E39 Fuel Pump - Replaces just the part that failed - the pump. Made in Germany! - Pierburg - BMW

Replaces just the part that failed - the pump. Made in Germany! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
2816701
Mfg#:
16146752368
In Stock at Vendor
$213.99

This product was last offered at the strikethrough price on
03-21-2026

$183.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Crankshaft Seal

ES#19419 - 11142249533 - Rear Crankshaft Seal - Replace when doing a clutch job. - Genuine BMW - BMW

Replace when doing a clutch job. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
19419
Mfg#:
11142249533
In Stock
$100.99 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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