Choose Options Quick view 50 pcs/pack Insulator 42-1312 185-12080 42-1312 MSRP: Now: $11.72 Was: InsulatorReplace OEM(s): DelcoFor: Delco 21SI, 22SI Series IR/EF AlternatorssUsed On: Delco 21SI, 22SI & 23SI Alternators with 2nd Production SRE Housings (Square Terminal Holes)Color:... MSRP: Now: $11.72 Was: Choose Options Quick view