#16 AN Water Neck Fitting - Black

The #16 AN Water Neck Fitting in black from Meziere is a precision-engineered coolant passage adapter essential for custom cooling system builds and high-performance engine modifications. This fitting serves as a critical junction point in aftermarket water circulation systems, allowing you to route coolant flow from your engine block or cylinder head to external cooling components with a secure, leak-free connection. Whether you're building a custom street rod, fabricating a race-spec cooling loop, or upgrading a modified engine bay, this AN fitting provides the reliability and compatibility that serious mechanics demand.

Manufactured from durable materials with a black finish that resists corrosion and blends seamlessly into modern engine bay aesthetics, the #16 AN Water Neck Fitting features a standard AN thread pattern that ensures compatibility with industry-standard hoses, adapters, and manifold connections. The #16 AN designation indicates a nominal bore size of 2 inches, making this fitting ideal for medium to high-flow cooling applications where adequate coolant volume is critical for engine temperature regulation. Meziere's machining tolerances guarantee a precise fit that eliminates thread-stripping failures and allows for confident installation in tight fabrication environments.

This fitting benefits engine builders, custom fabricators, and performance enthusiasts who require modular cooling system solutions for non-standard or modified engine platforms. It pairs seamlessly with AN hose kits, aluminum water pumps, and custom radiator configurations where factory coolant passages are eliminated or relocated. Installation requires standard AN wrenches and basic plumbing knowledge; apply thread sealant or Teflon tape to ensure a watertight seal before final assembly. Compatible with both street and race applications, the #16 AN Water Neck Fitting delivers the professional-grade reliability expected in serious automotive builds.