O-Ring Boss to Radiator Hose -16-ORB to 1.500

The O-Ring Boss to Radiator Hose -16-ORB to 1.500 adapter from Drag Race Solutions is a precision fluid-transfer fitting designed for high-performance cooling system modifications. This adapter bridges the gap between -16 ORB (O-Ring Boss) port standards and 1.500-inch radiator hose connections, making it essential for custom cooling loops, engine transplants, and motorsport builds where OEM cooling geometry doesn't match your upgraded powerplant.

Constructed to Drag Race Solutions' exacting standards, the O-Ring Boss to Radiator Hose adapter features a robust -16 ORB threaded port on one end and a 1.500-inch connection on the other. The ORB design employs a tapered seal geometry with an integral O-ring groove, ensuring reliable performance under coolant pressure and temperature cycling—critical in competition environments where hose separation can lead to overheating.

This adapter is ideal for drag racers, road course competitors, and street performance builders running custom cooling systems. Its compact footprint and lightweight construction allow for tight integration into engine bays where space is at a premium, while the direct ORB-to-hose transition simplifies installation and reduces the need for additional hardware.