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Billet 1-Piece Alternator Pulley/Fan, 2.5" V-Belt Style

Billet 1-Piece Alternator Pulley/Fan, 2.5" V-Belt Style

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Part #: 47-73985-1 OEM Part #: 85220
$83.99 ea.
Available - Allow additional time for delivery
1932 thru 1947
See applications below for exact details.

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  • Quality Resto-Mod Part
  • Fan And Pulley Machined From One Piece Of Aluminum
  • Perfectly Balanced For Vibration-Free Operation At Even Very High RPM

This is the most balanced alternator pulley & fan combo in the industry because it is machined 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 is included. It will fit most GM, Delco, & Ford alternators.

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.  It looks great too!


Combined Cancer/Birth Defect
Prop 65 Warning

WARNING This product can expose you to chemicals including Cadmium which is known to the State of California to cause cancer on birth defects or other reproductive harm. for more information, visit