Koyo 13mm Coolant Reservoir Adapter (For Part# VH091662) Subaru WRX 08-21 / Legacy GT 05-09 | PI-2183

Product Fitment: 

2008-2021 Subaru WRX

2005-2009 Subaru Legacy GT

The Koyo PI-2183 adapter is a precision-engineered 13 mm coolant reservoir fitting designed to work with the Koyo Radiator part VH091662. When the original adapter becomes lost, damaged or corroded, the PI-2183 offers an exact replacement to restore proper coolant system function and plug integrity.

Key Features:

• 13 mm size – specifically suited for reservoir/fitting interface on compatible systems

• Compatibility with radiator part VH091662 in Subaru applications

• Ideal for replacing missing or damaged adapter fittings

• Simple replacement part without requiring full radiator replacement
  

Whether you’re performing a coolant system overhaul or just replacing a worn fitting, the PI-2183 ensures you maintain factory fit, function and system reliability.