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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Engine Pulley Parts

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Hydraulic Alternator Belt Tensioner

ES#2575507 - 11281717188 - Hydraulic Alternator Belt Tensioner - Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner - Ruville - BMW

Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner

Brand:
Ruville - Corporate Logo
ES#:
2575507
Mfg#:
11281717188
Back Ordered
$81.99

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

$78.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt

ES#2679110 - 11287636378 - Accessory Belt - Drives the alternator, water pump, and power steering pump - Genuine BMW - BMW

Drives the alternator, water pump, and power steering pump For vehicles with production date from 09/1991

Brand:
Genuine BMW - Corporate Logo
ES#:
2679110
Mfg#:
11287636378
Ships in 2 Business Days
9% off MSRP

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

$69.99

This product was last offered at the strikethrough price on
09-12-2026

$63.99 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 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.

$60.99

This product was last offered at the strikethrough price on
09-12-2026

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

Water Pump Pulley

ES#2813428 - 11511730554 - Water Pump Pulley - Located behind the fan blade, fan clutch bolts to this pulley - Hamburg Tech - BMW

Located behind the fan blade, fan clutch bolts to this pulley We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813428
Mfg#:
11511730554
Ships in 1 Business Day
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Pulley

ES#2867224 - 11511730554 - Water Pump Pulley - Located behind the fan blade, fan clutch bolts to this pulley - Febi - BMW

Located behind the fan blade, fan clutch bolts to this pulley We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867224
Mfg#:
11511730554
Ships in 1 Business Day
$39.51

This product was last offered at the strikethrough price on
08-13-2026

$28.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pin - Priced Each

ES#20441 - 11231263911 - Pin - Priced Each - Acts as a dowel for the crank pulley - Genuine BMW - BMW

Acts as a dowel for the crank pulley

Brand:
Genuine BMW - Corporate Logo
ES#:
20441
Mfg#:
11231263911
Ships in 2 Business Days
$2.99 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 2 Business 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 - 6PK1555

ES#5482431 - 0500061555 - Accessory Belt - 6PK1555 - Drives the alternator, water pump, and power steering pump - Meyle - BMW

Drives the alternator, water pump, and power steering pump 5X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 09/1994

Brand:
Meyle - Corporate Logo
ES#:
5482431
Mfg#:
0500061555
Ships in 8 Business Days
$12.99 USD

A/C Belt - 5PK905

ES#5482407 - 0500050905 - A/C Belt - 5PK905 - Drives the air conditioning compressor - Meyle - BMW

Drives the air conditioning compressor 5X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 01/1992

Brand:
Meyle - Corporate Logo
ES#:
5482407
Mfg#:
0500050905
Ships in 8 Business Days
$5.99 USD

V-Ribbed Serpentine Belt

ES#5482142 - 0500061570 - V-Ribbed Serpentine Belt - Refresh your accessory drive during your next service interval with this high-quality, long-lasting replacement belt. - Meyle - BMW

Refresh your accessory drive during your next service interval with this high-quality, long-lasting replacement belt. 5X Entries Into Our F80 M3 Sweepstakes

Brand:
Meyle - Corporate Logo
ES#:
5482142
Mfg#:
0500061570
Ships on Sep 29, 2026
$16.99 USD

Accessory Drive Belt Kit

Reduces the risk of belt noise, slippage, and breakdowns

Brand:
Ina - Corporate Logo
ES#:
4920167
Mfg#:
FB0198K
Back Ordered
$166.99 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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