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Engine Core Plug. Engine Expansion Plug. Engine Freeze Plug. Engine Welch Plug.

Part Number: 11021AA170
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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 Legacy, Outback, Tribeca

CYLINDER BLOCK
Full Diagram
CYLINDER BLOCK Diagram
#11021A
Required: 3
SYSTEM
CYLINDER BLOCK
Full Diagram
CYLINDER BLOCK Diagram
#11021A
Required: 3
SYSTEM

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