#12 AN W/P Fitting - Black

The #12 AN W/P Fitting - Black by Meziere is a precision adapter designed for high-performance cooling systems in race and street applications. This straight fitting connects a 1-inch NPT male port to a 12 AN male outlet, making it essential for custom water pump installations, engine modifications, and performance cooling upgrades. Built specifically for Meziere 100 Series water pumps, this adapter enables seamless integration between OEM or modified engine blocks and modern AN hose systems.

Constructed from aerospace-grade aluminum and finished in black anodize, the #12 AN W/P Fitting delivers both durability and corrosion resistance in demanding engine bay environments. The black anodized coating protects against oxidation while providing a professional appearance that complements modern engine dress-up packages. The 1 inch NPT male connection thread ensures a tight, leak-free seal with standard engine port specifications, while the 12 AN male outlet accepts -12 AN braided hose—the industry standard for high-flow cooling and fuel system applications. This direct connection eliminates the need for multiple adapters, reducing potential leak points and improving coolant flow efficiency.

Builders and engine shops rely on this fitting for LS swaps, big-block installations, and custom cooling system builds where Meziere pumps are the choice for consistent flow and reliability. The compact design (4.7 x 2.15 x 5.35 inches, weighing just 0.24 lbs) integrates easily into tight engine compartments without sacrificing strength or thread integrity. Whether upgrading a street rod cooling system, constructing a race-proven water pump assembly, or modernizing an older engine's cooling infrastructure, the #12 AN W/P Fitting provides the professional-grade transition needed for trouble-free operation.