Review on 🔌 DB Electrical APL5000: High-Quality Alternator with 1-Groove Pulley for Prestolite On Case Tractors - 5/8 Inch Belt Compatibility by Jamal Gerrero

Excellent! Very happy with it. Just like the picture, it is a machined solid steel pulley that appears to be cadmium plated. This is for a 5/8" wide belt (measured at the widest point of the belt) and for a 5/8" shaft alternator (GM 45/60/63/100 amp classic alternator). The outside diameter of the pulley is 3-1/16" or approximately 3.060". In my case I am using this on a 1953 Dodge 230 CI Flathead 6 with a 100 amp single wire GM alternator (model 12SI).