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The ECS Tuning alternator pulley is precisionmachined, then hard anodized for good looks, corrosion resistance, and durability. Far lighter than stock cast or a stamped steel pulley, it has a lower moment of inertia that won't sap horsepower as it spools up from low speeds. Reduced mass aside, it is extremely strong and durable.
Carefully engineered as a directfit bolt on, our alternator pulley diameter allows you to keep your existing tensioner, and use an easytosource stock length serpentine belt.
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Pulley Weight:
Alternator pulley 108 grams