M16 x 1.5 to #6 Male Adapter w/Washer

The XRP-XTREME RACING PROD. M16 x 1.5 to #6 Male Adapter with Washer is a precision-engineered fitting designed for high-pressure fluid systems where reliable thread conversion is critical. This straight adapter transitions from metric M16 x 1.5 male threads to a #6 AN male connection, making it essential for custom fuel lines, hydraulic systems, and performance cooling circuits where different thread standards must interface seamlessly.

Constructed from aluminum and black anodized for corrosion resistance, this adapter includes an integrated crush washer that provides a positive seal under pressure without requiring additional hardware. The anodized finish protects against oxidation in harsh environments—particularly valuable in marine and high-vibration applications where repeated thermal cycling can degrade unprotected aluminum fittings. The adapter's compact dimensions (2.75 x 1.15 x 3.65 inches) allow installation in tight engine bays or cramped system layouts where space is limited.

This fitting is engineered for buyers building custom fuel systems, hydraulic recovery setups, or performance cooling networks where OEM fittings don't match available ports. The metric-to-AN conversion handles the compatibility gap between metric metric industrial components and traditional AN hose systems, eliminating the need for multiple adapter chains that introduce leak points and pressure drop. XRP fittings are recognized in racing and off-road communities for consistent thread accuracy and reliable performance under sustained pressure.

Whether assembling a custom fuel delivery system, upgrading hydraulic brake lines, or routing coolant through a non-standard engine block configuration, this adapter provides the thread conversion needed without sacrificing durability or leak resistance. The included crush washer ensures proper sealing on first installation—critical for systems where re-threading or repair work is expensive or time-sensitive.