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BMW Z4 2.5i M54 2.5L

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BMW Z4 2.5i M54 2.5L Engine Pulley Parts

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Idler Pulley

ES#2873680 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Febi - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873680
Mfg#:
11287841228
In Stock
ON SALE!
$48.99

This product was last offered at the strikethrough price on
07-14-2026

$47.52 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Protective Cap

ES#29427 - 12311713143 - Protective Cap - Protects the upper mounting bolt of the hydraulic alternator belt tensioner assembly from debris - Genuine BMW - BMW

Protects the upper mounting bolt of the hydraulic alternator belt tensioner assembly from debris

Brand:
Genuine BMW - Corporate Logo
ES#:
29427
Mfg#:
12311713143
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sealing Washer - Priced Each

ES#20449 - 11231288660 - Sealing Washer - Priced Each - used in the belt drive - Genuine BMW - BMW

used in the belt drive

Brand:
Genuine BMW - Corporate Logo
ES#:
20449
Mfg#:
11231288660
Ships in 2 Business Days
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley

ES#29665 - 12317501754 - Alternator Pulley - For vehicles with a 120 amp Bosch brand alternator - Genuine BMW - BMW

For vehicles with a 120 amp Bosch brand alternator

Brand:
Genuine BMW - Corporate Logo
ES#:
29665
Mfg#:
12317501754
Ships in 1-2 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.

$122.99

This product was last offered at the strikethrough price on
07-25-2026

$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#3235041 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Gates - BMW

Complete tensioner assembly with roller

Brand:
Gates - Corporate Logo
ES#:
3235041
Mfg#:
11287512758
Ships on Aug 13, 2026
$116.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Tensioner Pully- New

ES#2813364 - 11281748130 - Tensioner Pully- New - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Hamburg Tech - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813364
Mfg#:
11281748130
Ships in 1 Business Day
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Assembly

ES#2187565 - 11281427252 - Mechanical Alternator Belt Tensioner Assembly - Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. - URO - BMW

Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2187565
Mfg#:
11281427252
Ships in 1 Business Day
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Deflection Pulley

ES#3676938 - V200209 - Deflection Pulley - Helps guide and keep tension on the belt. - Vaico - BMW

Helps guide and keep tension on the belt. We Price Match - Give Us A Call or Chat! For Vehicles With A Clockwise Power Steering Pump Only

Brand:
Vaico - Corporate Logo
ES#:
3676938
Mfg#:
V200209
Ships in 1 Business Day
$46.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Assembly

ES#2866914 - 11281427252 - Mechanical Alternator Belt Tensioner Assembly - Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. - Febi - BMW

Tensions the belt connecting the water pump, alternator, and power steering pump. Includes roller. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866914
Mfg#:
11281427252
Ships on Oct 21, 2026
$78.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Deflection Pulley

ES#21719 - 11287509508 - Deflection Pulley - Accessory drive belt idler pulley - Genuine BMW - BMW

Accessory drive belt idler pulley

Brand:
Genuine BMW - Corporate Logo
ES#:
21719
Mfg#:
11287509508
Ships in 1-2 days
5% off MSRP

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

$72.99

This product was last offered at the strikethrough price on
07-25-2026

$68.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt tensioner base plate

ES#21659 - 11281726774 - Belt tensioner base plate - Used to mount the belt tensioner to the engine - Genuine BMW - BMW

Used to mount the belt tensioner to the engine

Brand:
Genuine BMW - Corporate Logo
ES#:
21659
Mfg#:
11281726774
Ships in 4 Business Days
$67.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Air Conditioning Compressor

ES#21723 - 11287512762 - Accessory Belt - Air Conditioning Compressor - A/C belt for your BMW - Genuine BMW - BMW

A/C belt for your BMW

Brand:
Genuine BMW - Corporate Logo
ES#:
21723
Mfg#:
11287512762
Ships in 2 Business 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.

$35.99

This product was last offered at the strikethrough price on
07-25-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#205356 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Ruville - BMW

Complete tensioner assembly with roller

Brand:
Ruville - Corporate Logo
ES#:
205356
Mfg#:
11287512758
Ships in 7 Business Days
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt tensioner pitman arm

ES#21658 - 11281726773 - Belt tensioner pitman arm - Provides a smooth tensioner movement - Genuine BMW - BMW

Provides a smooth tensioner movement

Brand:
Genuine BMW - Corporate Logo
ES#:
21658
Mfg#:
11281726773
Ships in 1-2 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.

$60.99

This product was last offered at the strikethrough price on
07-25-2026

$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

Keep your BMW running at peak performance with the OEM INA Accessory Belt. A dependable solution engineered for lasting function and factory precision.

Brand:
Ina - Corporate Logo
ES#:
4920237
Mfg#:
FB6K458
Back Ordered
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Pulley Parts

Pulleys drive accessories essential to vehicle operation. Whether you need to install a stock original equipment pulley during a repair, or improve engine performance and appearance with a lightweight aluminum or underdrive pulley, count on ECS Tuning for pulley solutions that work.

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Manufacturer names and/or part numbers are used only for identification purposes.

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