Radium Engineering 10AN PCV Valve Cover Adapter | 2003-2006 Mitsubishi Evo 8/9 (14-0274)

The Evo valve cover has its own idea of a breather port; AN hose has another.

The Radium Engineering 10AN PCV Valve Cover Adapter for the Evo 8/9 converts the Mitsubishi valve cover breather connection to a 10AN male flare, giving catch can and breather plumbing a proper AN anchor at the source. Purpose-machined for the 4G63 cover rather than adapted to it, the fitting turns crankcase ventilation routing into standard hose-end work.

What You'll Feel

• Catch can plumbing starting from a real AN connection at the valve cover
• Full-flow 10AN sizing for the high blow-by conditions a built 4G63 generates
• A clean, engineered look replacing barbed improvisations

Features

• Adapts the Evo 8/9 valve cover breather connection to a 10AN male flare
• Machined anodized aluminum construction
• Pairs with Radium 10AN hose ends and catch can systems

The Details

Crankcase ventilation plumbing is only as good as its worst connection, and the valve cover end is where most improvised setups leak or restrict. This adapter fixes the anchor point, with the 10AN flare taking a standard hose end installed dry, hand tight plus 1/4 to 1/2 turn, and the cover side seated per its interface. From there, routing runs to a Radium catch can inlet and onward per your PCV or CCV architecture. Verify your valve cover's breather configuration matches before ordering, since Mitsubishi varied details across years and markets. Sold individually.

Kit Includes

• 1x 10AN PCV valve cover adapter (14-0274)

Applications

• 2003-2006 Mitsubishi Lancer Evolution 8 and 9 (4G63 valve cover breather)
• Catch can and breather system plumbing