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BMW Z4 2.5i M54 2.5L

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BMW Z4 2.5i M54 2.5L Engine Drive Belt Parts

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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

Deflection Pulley

ES#3215679 - 11287509508 - Deflection Pulley - Accessory drive belt idler pulley - Ina - BMW

Accessory drive belt idler pulley We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3215679
Mfg#:
11287509508
Ships in 7 Business Days
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt tensioner adjuster bearing

ES#3215769 - 12311713153 - Belt tensioner adjuster bearing - Bearing used on hydraulic belt tensioners - Ina - BMW

Bearing used on hydraulic belt tensioners We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3215769
Mfg#:
12311713153
In Stock
$10.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Belt tensioner adjuster bearing

ES#29428 - 12311713153 - Belt tensioner adjuster bearing - Bearing used on hydraulic belt tensioners - Genuine BMW - BMW

Bearing used on hydraulic belt tensioners

Brand:
Genuine BMW - Corporate Logo
ES#:
29428
Mfg#:
12311713153
Ships in 7 Business Days
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical Alternator Belt Tensioner Pulley Cover

ES#21612 - 11281435114 - Mechanical Alternator Belt Tensioner Pulley Cover - Seals the front of the pulley from debris - Genuine BMW - BMW MINI

Seals the front of the pulley from debris

Brand:
Genuine BMW - Corporate Logo
ES#:
21612
Mfg#:
11281435114
Ships in 1-2 days
$3.99

This product was last offered at the strikethrough price on
04-08-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley

ES#3673270 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - JL Germany - BMW

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems

Brand:
JL Germany
ES#:
3673270
Mfg#:
11287841228
Special Order: No Guaranteed ETA
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Air Conditioning Compressor

For dependable operation and peace of mind, trust the INA Serpentine Belt from ECS Tuning, a smart choice for preventative maintenance and long-term reliability in your BMW.

Brand:
Ina - Corporate Logo
ES#:
4920228
Mfg#:
FB4K339
Ships in 2 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt - Air Conditioning Compressor

ES#5482435 - 500040863 - Accessory Belt - Air Conditioning Compressor - Replacement 4PK863 accessory belt - Meyle - BMW

Replacement 4PK863 accessory belt 5X Entries Into Our F80 M3 Sweepstakes

Brand:
Meyle - Corporate Logo
ES#:
5482435
Mfg#:
500040863
Ships in 8 Business Days
$5.99

This product was last offered at the strikethrough price on
09-11-2026

$5.00 USD

Auxiliary belt

ES#4333261 - 11287509520 - Auxiliary belt - Restore optimal function to your BMW Z4s engine systems with this expertly crafted auxiliary belt from Meyle. - Meyle - BMW

Restore optimal function to your BMW Z4’s engine systems with this expertly crafted auxiliary belt from Meyle. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4333261
Mfg#:
11287509520
Ships on Sep 29, 2026
$15.99 USD
Free Shipping
on orders $49 and up

Accessory Belt - Alternator/Water Pump

Drives Critical Components

Brand:
Gates - Corporate Logo
ES#:
3235039
Mfg#:
11287636372
Ships on Oct 1, 2026
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#2866964 - 11287512758 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - Febi - BMW

Complete tensioner assembly with roller We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2866964
Mfg#:
11287512758
Special Order: No Guaranteed ETA
$75.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Drive Belt Parts

Drive belts transfer crankshaft power to various accessories, including the alternator, water pump, power steering pump, and air conditioning compressor. Replacement of drive belts, serpentine belts, and drive belt tensioners at recommended service intervals helps you avoid untimely breakdowns and expensive vehicle repairs.

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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