CHRISTMAS TRADING HOURS: Closed Midday 24–28 Dec · Open 29–31 Dec · Closed 1 Jan We’re running limited staff this week, so response times may be slower than usual. Orders will still be dispatched on all non–public holiday days.
Both aluminum and steel bungs feature 10AN male (7/8-14) threads and have a large 12.4mm (1/2") internal diameter for optimal flow.
Click HERE to download the 14-0274 installation instructions (PDF). The 14-0274 aluminum fitting can be used as a weld-in or press-in fitting (specifically for the USDM Mitsubishi EVO 8-9 magnesium valve cover). The press-in portion is 16.6mm diameter. It replaces the PCV valve's bushing so installation does NOT require valve cover removal. The fitting has extremely close tolerances to make a tight fit. NOTE: The JDM EVO 4-9 valve cover uses a different PCV valve and is NOT compatible.
The 14-0293 weld-on fitting (shown below) is made from steel and is commonly used on oil pans. To prevent rust, this raw (uncoated) fitting is soaked in oil.
Fitment Table
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