Nissan Fairlady/300ZX Z32 Cylinder Head Front Core Plug Thread (11048C)

This part is a threaded cylinder head gallery plug used across VG30DE and VG30DETT engines. Its primary role is to seal internal oil passages within the cylinder heads, ensuring proper oil flow and pressure throughout the valvetrain. Manufactured from durable steel, it is designed to withstand high temperatures and long-term exposure to engine oil without degrading. This plug is commonly removed during engine rebuilds or head servicing, as it allows access for thorough cleaning of oil galleries. Proper installation is critical to prevent oil leaks or pressure loss inside the engine.

• USDM 300ZX (Z32): 1990–1996 (naturally aspirated and twin-turbo models)
• JDM Fairlady Z (Z32): 1989–2000 (naturally aspirated and twin-turbo models)