Pioneer Automotive PE158 Engine Expansion Plug Kit

The Pioneer Automotive PE158 is a complete engine expansion plug kit designed to restore proper sealing to engine block core holes. Also commonly referred to as freeze plugs or core plugs, expansion plugs are critical components that seal the sand casting holes in the engine block and cylinder head, preventing coolant leaks and maintaining proper engine operating pressure.

Pioneer Automotive Industries has been a trusted name in aftermarket engine components since 1946, and this kit is engineered to meet or exceed OEM specifications for fit and function.

Key Features:

• Complete kit includes all expansion plugs needed for a full engine block reseal
• Engineered for precise fit in OEM-specified core hole dimensions
• Durable construction designed to withstand engine heat, coolant exposure, and pressure cycling
• Helps prevent coolant leaks caused by corroded or damaged original expansion plugs
• Manufactured to meet or exceed original equipment standards

California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.