Inlet Fitting 1-1/2in

The ALLSTAR PERFORMANCE Inlet Fitting 1-1/2in (ALL 30038) is a straight adapter fitting designed for radiator and cooling system applications requiring secure, leak-free fluid transfer. This aluminum adapter converts a 1-5/8-12 inch male O-ring connection to a 1-1/2 inch hose barb, making it ideal for custom cooling installations, radiator plumbing, and high-performance engine builds where precision fluid routing is critical.

The fitting's clear anodized aluminum construction provides corrosion resistance while allowing visual inspection of the connection interface. The O-ring sealed design ensures positive pressure retention without additional clamps or sealants, a standard in modern cooling system design. The 1-1/2 inch hose barb accommodates standard radiator and heater hose diameters commonly found in street rods, race vehicles, and engine swap projects. Weighing just 0.13 lbs, this compact adapter integrates seamlessly into tight engine bay configurations without adding bulk.

Technicians and builders favor straight adapters like this one when routing coolant flow without spatial constraints or when replacing factory fittings in custom radiator setups. The barb connection style provides reliable mechanical grip on hose material, reducing the risk of slippage during thermal cycling. This fitting is a stock component for high-performance engine builders, vintage restoration shops, and anyone reconfiguring cooling circuits for non-standard applications where direct male O-ring to hose barb conversion is required.