Buy 1989 Nissan 300ZX Engine Core Plug. Cylinder block and oil pan. CYLINDER, Welch, EC - OEM Nissan Part # 00933-1301A (009331301A, 11021-D0100)

Engine Expansion Plug. Engine Freeze Plug. Plug Blind. Plug Welch.
Plug that prevents the engine block or cylinder head from cracking in case of freezing coolant. Also used to plug the casting holes from production.

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Fits 200SX, 300ZX, Hardbody Pickup, Maxima, Pathfinder, Pulsar NX, Sentra, Stanza