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Subaru STI : Engine and Cooling Products
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Engine Core Plug. Plug Cylinder Block.

Part Number: 11021AA020

-9Y. NO.1. NO.3. 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 STI (2004 - 2021)

CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021
-9Y.
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021
-9Y.
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021
Required: 3
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021
Required: 3
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021*C
Required: 3
NO.3.
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021*A
Required: 3
BODY '00MY-'04MY
NO.1.
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021*A
Required: 3
BODY
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021*A
Required: 3
SYSTEM '13MY-
CYLINDER BLOCK
Full Diagram
Diagram CYLINDER BLOCK for your Subaru STI
#11021*A
Required: 3
SYSTEM

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