Part Number: PV05997
Ilmor PV05997 Expansion Plug
Maintain proper engine sealing and cooling system integrity with the Ilmor PV05997 Expansion Plug. Designed as a genuine OEM replacement, this marine expansion plug seals critical engine block passages to help prevent coolant leaks and maintain reliable engine performance in demanding marine environments.
Expansion plugs, sometimes referred to as core plugs or freeze plugs, are essential components within the engine block cooling system. Over time, exposure to coolant, moisture, corrosion, and repeated heat cycles can weaken or damage these plugs, potentially leading to leaks and cooling system failures. Replacing worn expansion plugs helps protect the engine block and maintain dependable cooling system operation.
Manufactured to Ilmor factory specifications, the PV05997 expansion plug is built using durable marine-grade materials engineered for long-term reliability in high-performance marine applications. Designed as a direct-fit replacement, it provides precise fitment and dependable sealing performance for compatible Ilmor engines.
Common Engine Fitments
The Ilmor PV05997 expansion plug is commonly used on Ilmor MV8 and GDI marine engines, including:
- Ilmor MV8 5.7L
- Ilmor MV8 6.0L
- Ilmor MV8 6.2L
- Ilmor 5700GDI
- Ilmor 6000GDI
- Ilmor 6.2L GDI and GDI-S engine platforms
These engines are widely found in premium towboats and surf boats, including:
- MasterCraft X22
- MasterCraft X24
- MasterCraft X26
- MasterCraft XT21, XT22, and XT23
- MasterCraft NXT22 and NXT24
- MasterCraft ProStar
The PV05997 expansion plug is commonly used in engine block cooling system assemblies where maintaining a secure seal is essential for stable engine temperatures and long-term reliability.
Fitment can vary depending on engine serial number and block configuration, so confirming compatibility with part number PV05997 before ordering is recommended.
Key Features
- Genuine Ilmor OEM expansion plug
- Helps seal engine block cooling passages
- Designed for MV8 and GDI marine engine applications
- Marine-grade construction for corrosion resistance and durability
- Helps prevent coolant leaks and cooling system issues
- Direct-fit replacement for straightforward installation
Why Replace an Expansion Plug?
Expansion plugs can corrode or deteriorate over time from constant exposure to coolant and marine environments. Replacing worn plugs helps maintain cooling system integrity, prevent leaks, and protect the engine from overheating-related damage.
If you’re servicing an Ilmor-powered MasterCraft, the PV05997 expansion plug delivers the OEM-quality fit and dependable sealing performance your engine was designed for.