Subaru OEM Engine Expansion Plug WRX 04-25 / STI 04-21 | 15027AA133

Replace a worn or damaged engine expansion plug with the Genuine Subaru OEM Engine Expansion Plug. Designed as a direct factory replacement for 2004-2025 Subaru WRX and 2004-2021 Subaru STI models, this genuine Subaru component ensures proper fitment and dependable sealing performance.

Whether you're rebuilding an engine, replacing a leaking expansion plug, or completing preventative maintenance, using genuine Subaru OEM components helps maintain the reliability and performance your engine was designed for.

Fitment:
Subaru WRX (2004-2025)
Subaru STI (2004-2021)

Features:
Genuine Subaru OEM engine expansion plug
Direct factory replacement
Precision-manufactured to Subaru specifications
OEM-quality fit and sealing performance
Ideal for engine rebuilds, repairs, and maintenance
Sold individually

Warranty Disclaimer: Subaru of America will only warranty OEM parts installed by a certified Subaru dealership on a vehicle with a matching VIN. Warranty eligibility is subject to Subaru's policies and installation requirements.