Crankshaft Pulleys & Harmonic Balancers for BMW 3 Series E91 (2006-2012)

Genuine BMW Hex Bolt - 11211439395

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T#:32404

Part#: 11211439395

In Stock

4% off MSRP $ 26.99

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

$ 25.99 USD

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4% off MSRP

$ 26.99

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

$ 25.99 USD

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Genuine BMW Hex Bolt
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F10,F25 X3

Fits BMW Engines including:
N51,N52,N52N,N54,N54T

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Crankshaft Pulley With Vibration Damper

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:593668

Part#: 11237564969

Ships in 1 Business Day

$ 234.99 USD

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$ 234.99 USD

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Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in synch with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.

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VAC V2 Harmonic SuperDamper By ATI - BMW N54 3.0L

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T#:639879

Part#: VAC-HPCD-N54

Ships in 8 Business Days

$ 1,059.99 USD

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$ 1,059.99 USD

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If you are breaking crankshafts and oil pumps, the cause may be a mystery to you as it has been to many of our customers. We know that controlling the harmonic resonance of the BMW 6 is highly important as RPMs rise, but the ideal configuration of the inline-6 motor makes even experienced engine builders overlook some fundamental principals of engine harmonics that can be destructive. ATI Performance Products has partnered with VAC Motorsports to develop new dampers for BMW 2.5L, 2.8L, 3.0L and 3.2L straight-6 engines found in the E36 and E46 M3, E9X and E6X, as well as newer Z3s and Z4s. These dampers eliminate crankshaft harmonic vibration, which allows the engine to produce more horsepower and torque, while also reducing internal engine wear at the same time. Broken oil pumps and timing chains will be a thing of the past! When used with a VAC accessory pulley, these dampers are a direct replacement over the OEM balancer. They have a 7” outer diameter and include OEM style timing alignment tabs. BMW enthusiasts should know that all ATI Super Dampers exceed SFI 18.1 Safety Certification and are approved for competition. The advantages of the ATI SuperDamper include eliminating vibration issues with inline 6 engines equipped with lightweight clutch and flywheel assemblies, reduced bearing, engine accessories, oil pump wear, and compatibility with underdrive pulleys. Includes lightweight VAC Billet Crankshaft Pulley.

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Hex Bolt - N52, N54

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T#:19792190

Part#: 11211439395

In Stock

Sale - Save 20% $ 18.99

This product was last offered at the strikethrough price on
05-03-2026

$ 15.19 USD

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Sale - Save 20%

$ 18.99

This product was last offered at the strikethrough price on
05-03-2026

$ 15.19 USD

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Replacement center bolt for the engine crank pulley.

Genuine BMW Crankshaft Pulley With Vibration Damper

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:32895

Part#: 11237564969

Ships in 2 Business Days

10% off MSRP $ 789.99

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

$ 713.99 USD

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10% off MSRP

$ 789.99

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

$ 713.99 USD

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Genuine BMW Vibration Damper -
This item fits the following BMW Chassis:
E70 X5,E82,E83 X3,E85,E86,E89 Z4,E90,E92,E93

Fits BMW Engines including:
N51,N52,N52N

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Genuine BMW Alternator Pulley

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:39000

Part#: 12317560483

Ships in 5 Business Days

7% off MSRP $ 145.99

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

$ 135.99 USD

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7% off MSRP

$ 145.99

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

$ 135.99 USD

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Genuine BMW Pulley Alternator - Bosch 6Pk
This item fits the following BMW Chassis:
E70 X5,E82,E83 X3,E90,E92,E93

Fits BMW Engines including:
N51,N52,N52N,N54

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OEM Febi Crankshaft Pulley With Vibration Damper - E60, E61, E82, E88...

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T#:38452839

Part#: 11237516385

Special Order: No Guaranteed ETA

$ 251.99 USD

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$ 251.99 USD

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Every time the cylinders fire, torque is transferred into the crankshaft. The crankshaft deflects under this torque, which sets up vibrations when the torque is released. At certain engine speeds the torque imparted by the cylinders are in sync with the vibrations in the crankshaft, which results in a phenomenon called resonance This resonance causes stress beyond what the crankshaft can withstand, resulting in crankshaft failure. The accessory pulley acts as a balancer and prevents these vibrations from destroying your crankshaft.

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Crankshaft Pulleys & Harmonic Balancers for BMW 3 Series E91 (2006-2012)

Genuine BMW Hex Bolt - 11211439395

Crankshaft Pulley With Vibration Damper

VAC V2 Harmonic SuperDamper By ATI - BMW N54 3.0L

Hex Bolt - N52, N54

Genuine BMW Crankshaft Pulley With Vibration Damper

Genuine BMW Alternator Pulley

OEM Febi Crankshaft Pulley With Vibration Damper - E60, E61, E82, E88...

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