SKU: MEZWA16175S
MPN: WA16175S
The MEZIERE 16an Male to 1-3/4 Hose Adapter is a machined aluminum fitting that bridges the gap between AN plumbing and large-diameter smooth rubber hose. One end carries a #16 AN male connection cut to accept a standard AN hose end, while the other end is a 1.75-inch slip barb sized for radiator-style rubber hose. Builders running braided AN lines on a cooling system reach a point where they need to step over to conventional hose at the water pump or water neck, and this part handles that transition cleanly. It's a common piece in custom and race cooling system plumbing.
Construction is aluminum with a black anodized finish, matching the show-quality look MEZIERE applies across its fitting line. The #16 AN side is machined to the standard 37-degree AN profile so it threads to any conforming AN hose end without adapters or shims. The 1.75-inch slip diameter is built to seat inside smooth rubber hose of the same nominal size, then clamp down with a standard worm-gear or spring clamp. Because the body is anodized rather than plated, the finish resists corrosion from coolant exposure and won't flake the way chrome can. The black anodizing also pairs with the rest of MEZIERE's black-finished water necks and pump fittings for a consistent engine bay. Per manufacturer specifications, the part is intended for water pump and water neck hose connections.
Reach for this adapter when a build mixes AN-style braided line with a section of large rubber hose, which happens often at the water pump inlet, water neck outlet, or surge tank feed. It's the right call for street rods, race cars, and engine swaps where the plumbing has to be both functional and clean-looking. Once you've sorted the transition fittings, the same job usually involves matching a water neck and a surge tank to complete the loop. Browse our full heating and cooling selection to round out the system with compatible MEZIERE hardware.
The #16 AN male end is machined to the standard 37-degree AN flare profile, so it threads directly to any conforming #16 AN hose end or fitting. No additional adapters are needed to make that connection on the AN side.
The barb is a 1.75-inch (1-3/4") slip diameter sized for smooth, large-diameter rubber hose of the same nominal size, such as radiator hose. Seat the hose over the barb and secure it with a standard worm-gear or spring hose clamp.
Per manufacturer specifications, it's intended for water pump and water neck hose connections. It's commonly used to transition from braided AN line to a section of conventional smooth rubber hose anywhere in a custom or race cooling system.
The body is aluminum with a black anodized finish. Anodizing resists coolant corrosion and won't flake like plated chrome, and the black color matches MEZIERE's other black-finished water necks and pump fittings for a consistent look.
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