Billet Specialties 85220 - Alternator Fan & Pulley with Nose Cone Polished

Billet Specialties manufactures the most balanced alternator pulley & fan combo in the industry by machining the unit out of one solid piece of aluminum. Billet Specialties manufactures the most balanced alternator pulley & fan combo in the industry by machining the unit out of one solid piece of aluminum. This 1-piece pulley and fan combo features a bolt on nose cone to hide the alternator nut and washer, stainless hardware included. Fits most GM, Delco, & Ford alternators. Dimensions: 2-1/2" Diameter WHY BUY A BILLET PULLEY? The benefit of a billet aluminum pulley over a cast pulley is equal density. With a cast pulley, the aluminum is poured into a mold and then allowed to cool. This process can create variations in density throughout the pulley. Dense areas are heavier than the more porous areas causing the pulley to vibrate at high RPM. Our billet pulleys are equally dense throughout; equal weight translates to a true and balanced pulley drive system.