D518 (Ref# 35-135) Regulator 24 Volt, B-Circuit, 27.5 Vset, Solid State For: Delco 10DN Series ER/EF Alternators Used On: Industrial, Marine Applications Replaces: Delco 1119518 Terminal ID: Field F, Stator 2, B+ 3, Light 4, B- Case Features: Solid state Rotor current 2.2 to 2.6 amps