Buy OEM Subaru Part # 11021AA001 (11021AA000). Engine Core Plug. Plug Cylinder Block. Casting, Coolant

83. Plug that prevents the Engine Block or Cylinder Head from cracking in Case of freezing Coolant. Also used to Plug the casting holes from production.

PLUG-CYLINDER BLOCK Engine Core Plug

Fits DL, GL, GL10, Justy, Loyale, RS, RX, XT