Qualcast 97-10B Engine Expansion Plug Kit

The Qualcast 97-10B is a complete engine expansion plug kit designed to seal engine block openings and prevent coolant leaks. Also known as freeze plugs or Welch plugs, these essential components protect your engine from coolant loss and maintain proper engine cooling system integrity.

Key Features:

• Manufactured from high-quality steel for reliable sealing and durability
• Precision-engineered cup design for proper fit and installation
• Made in the USA to strict quality standards
• Complete kit provides all necessary plugs for your engine application
• Suitable for automotive, marine, and performance applications

Expansion plugs are critical engine components that seal core holes left from the casting process. When properly installed, they create a leak-proof barrier to maintain cooling system pressure and prevent contamination. This kit includes the specific plug sizes required for your engine's configuration.