Add to Cart Quick view Rotor 28-100 303-12000 28-100 MSRP: Now: $83.40 Was: RotorReplace OEM(s): DelcoFor: Delco 10SI Series 70-72A IR/EF AlternatorssUsed On: Delco 10SI AlternatorsAmps: 70/72 AmpsAmps Draw: 4.2 AmpsAmps Low Output: 70 AmpsBody OD: 4.079in / 103... MSRP: Now: $83.40 Was: Add to Cart Quick view