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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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Heater Hard Line replacement Kit

ES#4158351 - 11531705210KT2 - Heater Hard Line replacement Kit - Assembled By ECS - BMW

10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4158351
Mfg#:
11531705210KT2
Ships on Nov 12, 2026
ON SALE!
$201.99

This product was last offered at the strikethrough price on
04-28-2026

$191.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Air Adjustment Unit/DISA Valve

ES#2960367 - 11617544806 - Intake Air Adjustment Unit/DISA Valve - Having idle problems and low RPM hesitation? Located on the intake manifold. - URO - BMW

Having idle problems and low RPM hesitation? Located on the intake manifold. 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2960367
Mfg#:
11617544806
Ships in 1 Business Day
$189.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tensioner Piston

ES#22078 - 11311703747 - Tensioner Piston - This piston is housed by the cylinder and spring for the lower tensioner - Genuine BMW - BMW

This piston is housed by the cylinder and spring for the lower tensioner

Brand:
Genuine BMW - Corporate Logo
ES#:
22078
Mfg#:
11311703747
Ships in 1-2 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.

$27.99

This product was last offered at the strikethrough price on
10-10-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake O-Ring - Priced Each

ES#34919 - 13711731893 - Intake O-Ring - Priced Each - Seals the intake intake boot - Genuine BMW - BMW

Seals the intake intake boot

Brand:
Genuine BMW - Corporate Logo
ES#:
34919
Mfg#:
13711731893
In Stock
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Mount Support - Upper

ES#37845 - 17111712911 - Radiator Mount Support - Upper - Secures the upper radiator bracket to core support. - Genuine BMW - BMW

Secures the upper radiator bracket to core support.

Brand:
Genuine BMW - Corporate Logo
ES#:
37845
Mfg#:
17111712911
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2873780 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - Febi - BMW

Common source of engine overheating We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873780
Mfg#:
11527505302
Ships on Jan 11, 2027
$187.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing Gasket

ES#10947 - 11537509357 - Thermostat Housing Gasket - Needs to be replaced once removed - Elring - BMW

Needs to be replaced once removed 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
10947
Mfg#:
11537509357
In Stock
$7.99

This product was last offered at the strikethrough price on
07-23-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flange Nut - priced each

ES#25797 - 11617545279 - Flange Nut - priced each - M7 found in the cylinder head - Genuine BMW - BMW

M7 found in the cylinder head

Brand:
Genuine BMW - Corporate Logo
ES#:
25797
Mfg#:
11617545279
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coils, 6-Pack

ES#5435310 - MMIG-BMW-0206 - Ignition Coils, 6-Pack - This coil is engineered as a direct-fit replacement, ensuring a seamless installation that communicates perfectly with the vehicle's ECU. - Mishimoto - BMW

This coil is engineered as a direct-fit replacement, ensuring a seamless installation that communicates perfectly with the vehicle's ECU.

Brand:
Mishimoto - Corporate Logo
ES#:
5435310
Mfg#:
MMIG-BMW-0206
Ships in 3 Business Days
$184.99 USD
Free Shipping
on orders $49 and up

Oil Cap

ES#18383 - 11121743294 - Oil Cap - Includes the sealing gasket - Genuine BMW - BMW

Includes the sealing gasket

Brand:
Genuine BMW - Corporate Logo
ES#:
18383
Mfg#:
11121743294
Ships in 1-2 days
8% off MSRP

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

$39.99

This product was last offered at the strikethrough price on
10-10-2026

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compression Shroud

ES#180317 - 64548380782 - Compression Shroud - Genuine BMW - BMW

For wagon models

Brand:
Genuine BMW - Corporate Logo
ES#:
180317
Mfg#:
64548380782
Ships in 6 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.

$187.99

This product was last offered at the strikethrough price on
10-10-2026

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

Fuel Line

ES#36676 - 16121184158 - Fuel Line - Genuine BMW - BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
36676
Mfg#:
16121184158
Ships in 2 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.

$92.99

This product was last offered at the strikethrough price on
10-10-2026

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

King Performance BMW S54 Main Bearings - .25 Oversize

ES#4756556 - MB7039AM0.25 - King Performance BMW S54 Main Bearings - .25 Oversize - .25+ Oversize - King - BMW

.25+ Oversize

Brand:
King - Corporate Logo
ES#:
4756556
Mfg#:
MB7039AM0.25
Ships in 6 Business Days
13% off MSRP

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

$207.00

This product was last offered at the strikethrough price on
10-10-2026

$179.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Return Pipe

ES#2598766 - 11617504536 - Return Pipe - Runs from the intake manifold back to connecting hose - Rein - BMW

Runs from the intake manifold back to connecting hose 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2598766
Mfg#:
11617504536
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Engine Seal - Priced Each

ES#3673546 - 11142245364 - Rear Engine Seal - Priced Each - Replace when doing clutch job - Elring - BMW

Replace when doing clutch job 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3673546
Mfg#:
11142245364
In Stock
$20.99

This product was last offered at the strikethrough price on
06-26-2026

$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner Roller

ES#2776538 - 11281748131 - Hydraulic Alternator Belt Tensioner Roller - Replacement is recommend with every belt service - Vaico - BMW

Replacement is recommend with every belt service We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2776538
Mfg#:
11281748131
In Stock
$30.99

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

$17.99 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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