Add to Cart Quick view Rectifier DR5183 172-12071 DR5183 MSRP: Now: $88.21 Was: RectifierReplace OEM(s): DelcoFor: Delco 31SI Series 200A/12V IR/EF AlternatorssUsed On: Delco 31SI Alternator ApplicationsBrush Holder Included: NoCondition: NewDiode Amps: 50 AmpsDiode Style:... MSRP: Now: $88.21 Was: Add to Cart Quick view