Found 6 alternatives for 2-1377173-4 by WEC. Terminals Spade Connectors — Bulk,Bulk.
CONN SPADE TERM 14-16AWG #4 BLU
CONN SPADE TERM 16-22AWG #8
CONN SPADE TERM 10-12AWG #8 YEL
CONN SPADE TERM 16-22AWG #10 RED
CONN SPADE TERM 14-16AWG #1/4
CONN SPADE TERM 16-22AWG #10 RED