YA4603 Voltage Regulator---Replaces 121522-77790

Replaces number 121522-77790, 121450-77710, 121450-77790, VR-522

Fits: 180, 186, 187, 220, 1601, 1610, 1702, 1720, 1800, 1802, 1810, 1820
2000, 2001, 2002, 2010, 2020, 2202, 2220, 2301, 2310, 2402, 2420

6 Plug

If equipped with 4 Wire Plug use part number WH-522