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Alternator Pulleys

Keep your drive belt system in perfect shape by replacing your alternator pulley. We carry quality OE aftermarket and Genuine BMW options to service your vehicle right.
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Genuine BMW - Corporate Logo
T#:19315
Part#: 12311288238
Ships in 1-2 days
3% off MSRP $ 109.99

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

$ 106.99 USD
Free Shipping
3% off MSRP
$ 109.99

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

$ 106.99 USD
Free Shipping


Genuine BMW Pulley - D=66mm

This item fits the following BMW Chassis:
E30 M3,E30,E34

Fits BMW Engines including:
M10,M20,S14

Genuine BMW - Corporate Logo
T#:22242
Part#: 11287838194
In Stock
8% off MSRP $ 250.99

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

$ 229.99 USD
Free Shipping
8% off MSRP
$ 250.99

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

$ 229.99 USD
Free Shipping
This is the tensioner pulley for the serpentine belts on BMW's with the S65 engine. This tensioner keeps the belt for the alternator, power steering and Air Conditioning taught to provide maximum performance of each system.
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Genuine BMW - Corporate Logo
T#:38953
Part#: 12317501754
Ships in 1-2 days
3% off MSRP $ 122.99

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

$ 118.99 USD
Free Shipping
3% off MSRP
$ 122.99

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

$ 118.99 USD
Free Shipping


Genuine BMW Pulley Alternator - D=55Mm
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M54


Genuine BMW - Corporate Logo
T#:368207
Part#: 32421740858
Ships in 1-2 days
2% off MSRP $ 109.99

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

$ 107.99 USD
Free Shipping
2% off MSRP
$ 109.99

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

$ 107.99 USD
Free Shipping
Replaced your damaged power steering pulley with this OEM part. This the stock stock (135mm) diameter pulley. 

This item fits the following BMWs:
1996-1998  E36 BMW  323is 323ic 328i 328is 328ic
1999-2005  E46 BMW  323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003  E39 BMW  525i 528i 530i
2000-2006  E53 BMW  X5 3.0i 
1996-2002  Z3 BMW  Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
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Rein - Corporate Logo
T#:53750207
Part#: PKP0124
Back Ordered
New Item
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein
Genuine BMW - Corporate Logo
T#:194157
Part#: 11287649371
Ships in 1-2 days
8% off MSRP $ 85.99

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

$ 78.99 USD
Free Shipping
8% off MSRP
$ 85.99

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

$ 78.99 USD
Free Shipping
Genuine Bmw Deflection Pulley

Genuine BMW Motorsport - Corporate Logo
T#:396369
Part#: 12311311449KT
Ships on Sep 16, 2026
$ 1,696.99 USD
Free Shipping on orders $49 and up

Group A racecars were the top of their class in both touring car and rally racing. Heavily modified and extremely fast these cars set out to demonstrate the best of what a manufacturer could do on the racetrack. It was the predecessor to the current DTM class racing and set a standard for many other divisions of motorsport to follow.  

One of the weaker points of the S14 engine, when speaking from a racing standpoint is the belt drive system. While fine for a street going car, a V-belt is not suitable for high RPM applications. On the track, most of your time will be spent in the higher rev range which puts extreme amounts of stress on the factory setup. BMW realised this and came up with a solution that involved doing away with the V belt system and using a 6 rib serpentine style instead.

Extremely resistant to slippage and failure this design holds up much better the abuse of track duty and won't leave you stranded and waiting for tow back to the pit. Additionally, this kit does not accommodate and a/c compressor and the alternator and waterpump are underdriven by way of slightly larger pulleys. Combined, this puts less of a load on the crankshaft which leads to more efficient power delivery to the ground. If you track you E30 M3, this is an essential upgrade and until now was extremely difficult to source. Do not skip this pivotal step in your engine build or overhaul and get a leg up on the competition the Group A way.
Please note this kit is special order and in non-returnable

Features:

  • Kit replaces all engine pulleys and crank damper
  • Includes 6 rib serpentine belt
  • Underdriven waterpump and alternator pulleys
  • Recommended for off road and racing use only 

This kit fits the following BMWs:
1986-1992 BMW M3 All 
 

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