#16 AN W/P Fitting - Red

The MEZIERE #16 AN W/P Fitting - Red (model WP1016R) is a straight water pump adapter designed for direct integration with Meziere 100 Series water pumps. This aluminum fitting bridges 1 inch NPT male threads to 16 AN male ports, providing a critical junction point for custom cooling system plumbing in performance engine builds. The red anodized finish offers both corrosion resistance and visual distinction in engine bay layouts, making it easy to trace coolant lines during maintenance or troubleshooting.

Aluminum construction keeps weight minimal while delivering reliable structural integrity under typical cooling system pressures. The straight-through design eliminates flow restrictions that elbows or complex fittings introduce, allowing coolant to move efficiently from the pump outlet to auxiliary cooling components or radiator circuits. The NPT-to-AN conversion addresses a common plumbing challenge in engine swaps and custom cooling setups, where pump ports and aftermarket radiator or heater control fittings use different thread standards. Precise machining ensures leak-free connections when paired with appropriate hose adapters and fittings rated for your system's operating pressure.

This fitting is essential for builders configuring standalone or modified cooling systems on street machines, race engines, and custom hot rods using Meziere electric or mechanical water pumps. It serves equally well in marine and powersports applications where engine-bay plumbing must adapt legacy pump designs to modern AN-port cooling components. The 16 AN designation indicates a fitting body sized to match -16 hose or adapter port specifications, a standard in high-performance cooling design. Checking pump outlet size, radiator inlet thread pattern, and system pressure rating before installation ensures compatibility and reliable operation.