Add to Cart Quick view Regulator D437P 230-12122 D437P MSRP: Now: $46.01 Was: RegulatorReplace OEM(s): DelcoFamily: 50DNFor: Gear Driven Bus AlternatorssUsed On: Transit Bus ApplicationsActivation: IgnitionAdjustable: YesBrush Holder Included: NoCircuit Type:... MSRP: Now: $46.01 Was: Add to Cart Quick view