The breather tube on the front driver's side of your engine block was designed to be connected by a hose to the intake system to facilitate Positive Crankcase Ventilation (PCV). If you change your carburetor or intake type and no longer have a place for the PCV hose, never block the PCV tube, and don't leave it without the protection of a filter. These filters are a proper fit for the PCV tube, and look great while protecting your engine! See matching Valve Cover breather in Related Items below.
For off road use only.
Datsun 240Z, 260Z, 280Z, 280ZX
Datsun S30, S130
1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983