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Having trouble finding a wide groove pulley for your alternator to use with the 1/2, 5/8 and 3/4 belts found on older vehicles?
We have the wide groove pulley you need. You can also use them to replace the large diameter pulley on an OEM generator or when adapting an alternator to replace an early generator to increase the RPM's and obtain more amperage at idle. Fits all GM and Ford alternators and other alternators and generators with 17mm (5/8") shafts. We also have the 5/8 - 3/4" wide pulleys for the Denso alternators with a 15mm shaft.
1/2" Pulley 5/8" Pulley 5/8 - 3/4" Pulley