Adapter Inlet Fitting 1.5 Hose Little Bertha

The Adapter Inlet Fitting 1.5 Hose Little Bertha from Waterman Racing Comp. is a precision coolant-system adapter engineered for high-performance engine builds and custom cooling setups. Designed for mechanics and enthusiasts running modified engines with upgraded cooling systems, this fitting bridges incompatible hose connections and allows seamless integration between aftermarket water pumps, radiators, and manifold ports. Whether you're upgrading a street rod, race engine, or custom cooling circuit, this adapter ensures reliable coolant flow without leaks or fitment issues.

Built to Waterman Racing's exacting standards, the 1.5-inch adapter inlet fitting features precision-machined construction with corrosion-resistant materials rated for high-temperature coolant circulation. The 1.5-inch hose port diameter matches common aftermarket cooling hose sizing, while the compact 2.88 × 2 × 5.63-inch footprint allows installation in tight engine bay environments without requiring extensive plumbing rework. This fitting's direct inlet design minimizes turbulence and maintains optimal coolant velocity, which is critical for preventing hot spots and cavitation in modified engines pushing elevated horsepower and coolant temperatures.

Professional mechanics and engine builders favor the Adapter Inlet Fitting 1.5 Hose Little Bertha for resto-mods, race car projects, and engine swaps where OEM cooling ports don't align with modern radiator and pump configurations. The lightweight 0.23-pound design makes it ideal for weight-conscious builds, and its durability under sustained high-flow conditions makes it essential for turbocharged and supercharged applications. Verify your existing hose connections and inlet port size before ordering to ensure compatibility with your cooling system architecture.