Add to Cart Quick view Regulator D104HD 230-12037 D104HD MSRP: Now: $11.43 Was: RegulatorReplace OEM(s): DelcoFor: Delco 10SI/Type 116, 20SI, 21SI, 22SI, 23SI, 26SI, 27SI/Type 200, 29SI, 30SI, 33SI, 34SI Series IR/EF AlternatorssUsed On: Delco 10SI & 27SI AlternatorsActivation:... MSRP: Now: $11.43 Was: Add to Cart Quick view