Add to Cart Quick view Rotor 28-141 303-12039 28-141 MSRP: Now: $150.96 Was: RotorReplace OEM(s): DelcoFor: Delco 21SI Series 50-70A/24V IR/EF AlternatorssUsed On: Delco 21SI AlternatorsAmps: 70 AmpsAmps Draw: 2.5 AmpsAmps Low Output: 50 AmpsBody OD: 4.236in / 107... MSRP: Now: $150.96 Was: Add to Cart Quick view