Radium 10AN Male Press-In Valve Cover Fitting, Honda K-Series Manufacturer_JAS This is the same thread

This is the same thread pitch used in -4AN (ORB=O-Ring Boss)

this tool offers precision

Excess oil-saturated air circulating back into the air intake stream can lead to degraded performance

WG38/40 7psi Pink Middle Spring

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Radium 10AN Male Press-In Valve Cover Fitting, Honda K-Series Manufacturer_JAS This is the same threadThe Radium Engineering 20 0909 10AN Male Press In Valve Cover Fitting is a low profile, swivel action fitting designed for Honda K Series valve covers. It simply presses in no drilling, welding, or permanent modification required making it the ideal solution for routing crankcase ventilation hoses to an oil catch can or AOS on K Series builds. Important: There are multiple valve cover variants across the Honda K Series range. This fitting is only