Water Pump Port Adapters 12an Female BBM 2pk

The Water Pump Port Adapters 12AN Female BBM 2pk from Meziere delivers professional-grade cooling system connectivity for high-performance engine builds. These adapters serve as the critical bridge between your water pump outlet ports and 12AN hose lines, enabling custom coolant circulation paths essential for stroker engines, turbo installations, and heavily modified cooling systems. Whether you're integrating an external transmission cooler, remote thermostat housing, or auxiliary radiator loop, this two-pack provides the redundancy and flexibility that serious engine builders demand.

Constructed with female 12AN port fittings and male 1.5-inch BBM (bolt-boss male) threads, these adapters thread directly into your water pump's threaded ports without requiring core drilling or port modifications. The 12AN female side accepts standard 12AN hose ends, making them compatible with virtually any aftermarket cooling hose system you're running. Meziere manufactures these adapters from ductile iron with precise machining, ensuring leak-free pressure-rated connections that withstand peak cooling pressures in turbocharged and supercharged applications. The two-pack format lets you equip both primary water pump outlets or keep a spare for future modifications.

These adapters suit builders running Meziere water pumps or any aftermarket pump featuring 1.5-inch BBM port threads. They're indispensable for LS swaps with custom radiator placement, fuel-injected small-block rebuilds requiring remote coolant distribution, and vintage muscle car restorations where modern cooling efficiency is non-negotiable. Installation requires no special tools—hand-tight with anti-seize compound ensures proper torque without risk of stripping. The compact 2.4 x 2.3-inch profile fits tight engine compartments, and the 0.71 lbs weight per unit adds negligible mass to your cooling system.