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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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Accessory Belt Kit Service Kit

ES#3648551 - 1128783879721KT - Accessory Belt Kit Service Kit - Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner - Assembled By ECS - BMW

Utilizes high quality aftermarket components - includes updated hydraulic alternator tensioner 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date before 09/1998

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648551
Mfg#:
1128783879721KT
Ships in 2 Business Days
ON SALE!
$279.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump O-Ring

ES#24381 - 11511711484 - Water Pump O-Ring - Low mileage water pump leaking? Have you considered replacing the o-ring? - Genuine BMW - BMW

Low mileage water pump leaking? Have you considered replacing the o-ring?

Brand:
Genuine BMW - Corporate Logo
ES#:
24381
Mfg#:
11511711484
In Stock
$11.99

This product was last offered at the strikethrough price on
03-04-2026

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt With Washer - Priced Each

ES#4865874 - 11531740317KT - Hex Bolt With Washer - Priced Each - Used to secure the thermostat - Bremmen Parts - BMW

Used to secure the thermostat 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4865874
Mfg#:
11531740317KT
In Stock
ON SALE! SAVE 39%
$3.99

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

$2.43 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protection Ring

ES#21663 - 11281730532 - Protection Ring - Seals the back side of the hydraulic alternator belt tensioner roller from debris - Genuine BMW - BMW

Seals the back side of the hydraulic alternator belt tensioner roller from debris

Brand:
Genuine BMW - Corporate Logo
ES#:
21663
Mfg#:
11281730532
In Stock
$3.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum hose

ES#25710 - 11617503666 - Vacuum hose - Connects to your suction pump - Genuine BMW - BMW

Connects to your suction pump

Brand:
Genuine BMW - Corporate Logo
ES#:
25710
Mfg#:
11617503666
Ships in 1-3 days
4% off MSRP

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

$23.99

This product was last offered at the strikethrough price on
08-24-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Block Gasket Set

ES#17590 - 11111432478 - Engine Block Gasket Set - Complete lower engine gasket set - Genuine BMW - BMW

Complete lower engine gasket set

Brand:
Genuine BMW - Corporate Logo
ES#:
17590
Mfg#:
11111432478
Ships in 1 day
5% off MSRP

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

$286.99

This product was last offered at the strikethrough price on
08-24-2026

$273.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Level Sensor

ES#168111 - 61318360876 - Coolant Level Sensor - Monitors the coolant level in the expansion tank - Genuine BMW - BMW

Monitors the coolant level in the expansion tank

Brand:
Genuine BMW - Corporate Logo
ES#:
168111
Mfg#:
61318360876
Ships in 1 day
2% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
08-24-2026

$90.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#2813484 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Hamburg Tech - BMW

Runs from the front left side of the engine to the heater inlet We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813484
Mfg#:
11531705210
In Stock
$38.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - With Service Tools

ES#4352359 - 12131712219KT6 - Ignition Service Kit - With Service Tools - Everything you need to service your ignition system including Bosch ignition coils and Bosch Platinum+4 spark plugs - Assembled By ECS - BMW

Everything you need to service your ignition system including Bosch ignition coils and Bosch Platinum+4 spark plugs 10X Entries Into Our F80 M3 Sweepstakes
Kit includes all necessary service tools
For vehicles with production date from 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
4352359
Mfg#:
12131712219KT6
Ships on Sep 15, 2026
Auto Notify
ON SALE!
$272.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Hose - One Meter Roll

ES#33737 - 13537563456 - Fuel Hose - One Meter Roll - 8x13mm - Genuine BMW - BMW

8x13mm

Brand:
Genuine BMW - Corporate Logo
ES#:
33737
Mfg#:
13537563456
Ships in 1 day
1% off MSRP

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

$68.99

This product was last offered at the strikethrough price on
08-24-2026

$67.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump Mount

ES#2534428 - 11727559515 - Secondary Air Pump Mount - 3 required per car - URO - BMW

3 required per car 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534428
Mfg#:
11727559515
In Stock
$6.99

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

$4.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Flange Gasket

ES#18358 - 11121738963 - Cylinder Head Flange Gasket - the gasket that connects your cylinder head flange to the cylinder head - Genuine BMW - BMW

the gasket that connects your cylinder head flange to the cylinder head

Brand:
Genuine BMW - Corporate Logo
ES#:
18358
Mfg#:
11121738963
In Stock
$15.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lower Timing Chain Tensioner

ES#258446 - 11311703717 - Lower Timing Chain Tensioner - Guide used to tension the timing chain - Febi - BMW

Guide used to tension the timing chain We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
258446
Mfg#:
11311703717
Ships in 1 Business Day
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Screw Plug - Priced Each

ES#23126 - 11361438338 - Screw Plug - Priced Each - Found in the VANOS system - Genuine BMW - BMW

Found in the VANOS system

Brand:
Genuine BMW - Corporate Logo
ES#:
23126
Mfg#:
11361438338
In Stock
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Premium Oil Change Kit

ES#4069276 - M50POCILMKT - Premium Oil Change Kit - Includes Liqui Moly oil, K&P reusaable oil filter and Turner Motorsport titanium magnetic oil drain plug. - Assembled By ECS - BMW

Includes Liqui Moly oil, K&P reusaable oil filter and Turner Motorsport titanium magnetic oil drain plug. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4069276
Mfg#:
M50POCILMKT
Back Ordered
ON SALE!
$273.99

This product was last offered at the strikethrough price on
08-19-2026

$266.73 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Bearing Shell Yellow

ES#19976 - 11211706864 - Bearing Shell Yellow - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
19976
Mfg#:
11211706864
Ships in 7 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.

$38.99

This product was last offered at the strikethrough price on
08-24-2026

$37.99 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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