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Ignitions and Electrical› Distributors, Magnetos and Crank Triggers

COBB

Billet Aluminum Crank Pulley

$165.00 $135.00 Save $30.00

SKU: 300102BK

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Constructed from durable Billet 6061-T6 aluminum and finished with a Stealth Black anodization, this pulley is built to withstand demanding under-hood conditions. It directly utilizes the factory crank pulley bolt for a straightforward installation process. The unit weighs only 1.2 lbs, reducing the overall rotational mass by up to 4 lbs compared to the stock component. This pulley is confirmed to fit a wide range of Subaru models, including various years and trims of the Impreza WRX, STI, Forester XT, Legacy GT, and Outback XT. It is emissions legal for sale in all 50 states with a CARB Executive Order (EO) number D-660-248. Note: Fitment has not been confirmed for H6 engines. Some sources indicate it will not fit 10+ Legacy models.

MIA's Description

It maintains the factory pulley diameter to prevent under-driving and electrical issues. The pulley also uses the stock drive belt surface for easy installation.

Constructed from Billet 6061-T6 aluminum with an anodized Stealth Black finish, this pulley weighs 1.2 lbs. It utilizes the factory crank pulley bolt and retains the stock drive belt surface for a straightforward installation process.

Fitment

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Specifications

BrandCOBB
Part Number300102BK
CategoryEngines and Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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