1-1/2in Radiator Hose Adapter

The 1-1/2in Radiator Hose Adapter from AutoMeter is a precision instrument designed for engine builders, performance technicians, and serious automotive enthusiasts who need reliable temperature monitoring on custom cooling systems. This straight adapter bridges the gap between your radiator hose and aftermarket temperature gauges, making it an essential component for any modified or monitored engine setup where factory gauge ports are unavailable or incompatible.

Constructed from aluminum for durability and corrosion resistance, the 1-1/2in Radiator Hose Adapter features a 1-1/2 inch hose barb on one end and a 3/8 inch NPT gauge port on the other, allowing direct integration of mechanical or electronic temperature sensors into your cooling system. The straight design minimizes turbulence and pressure loss, while the aluminum construction with natural finish resists degradation from coolant exposure.

Technicians installing custom gauge clusters on race vehicles, hot rods, street performance cars, and high-output engines rely on this adapter to access real-time coolant temperature data without modifying factory radiator hoses. The NPT gauge port accepts standard 3/8" NPT temperature senders, making it compatible with most aftermarket analog and digital gauges.