EWP Male Fitting -16AN to 1in NPT

The EWP Male Fitting -16AN to 1in NPT from Davies, Craig is a precision adapter engineered for electric water pump systems and high-flow cooling applications in performance automotive builds. This fitting bridges two critical cooling circuit standards—the -16AN hose coupling and 1-inch NPT (National Pipe Thread) port connection—enabling seamless integration between aftermarket electric pumps, radiators, and custom plumbing layouts. Whether you're upgrading to an EWP for weight reduction, improved coolant flow control, or standalone cooling management on a track car or engine swap, this male fitting eliminates the need for improvised adapters that compromise flow integrity or create leak points.

Davies, Craig fittings are manufactured to OEM-grade tolerances, ensuring reliable sealing under elevated coolant pressures and thermal cycling common in modified engines. The -16AN end accepts standard AN hose barbs and clamps, while the 1-inch NPT male thread mates directly into female NPT ports on water pump housings, radiator tanks, or manifold blocks without requiring thread adapters. The compact 2.75-inch overall length and minimal 0.15-pound weight make this fitting ideal for tight engine bays where space is constrained, and the precision machining resists corrosion and thread galling over repeated assembly and disassembly cycles.

Mechanics and engine builders installing Davies, Craig EWP systems—particularly in LS swaps, truck turbocharged builds, or radical weight-reduction projects—rely on this fitting to eliminate OEM cooling constraints without custom fabrication. The dual-standard design also suits retrofit cooling upgrades where existing NPT manifold ports require AN-compatible hose routes to aftermarket radiators or remote water filters. Verify your pump housing or manifold port thread size before ordering; this fitting requires a female 1-inch NPT receiver. Proper installation includes thread sealant rated for coolant systems and torque specifications per Davies, Craig documentation to prevent leaks under operating pressure.