1.5in Hose Adapter With 1/4in NPT Port

The 1.5in Hose Adapter with 1/4in NPT Port by Cold Case Radiators is a precision-engineered fluid transfer component designed for high-performance cooling systems in tactical vehicles, military equipment, and specialized automotive applications. This adapter serves as a critical junction point in custom radiator installations and aftermarket cooling upgrades, where reliable hydraulic connections are non-negotiable. Whether you're building a purpose-built tactical platform, maintaining fleet cooling systems, or upgrading heavy-duty equipment, this hose adapter ensures secure, leak-free operation under demanding operational conditions.

Manufactured by Cold Case Radiators, a trusted name in precision cooling solutions, this adapter features a 1.5-inch hose port paired with a 1/4-inch NPT (National Pipe Thread) connection port for auxiliary cooling lines, bypass circuits, or sensor installations. The dual-port design enables flexible system configuration while maintaining structural integrity under pressure cycling and thermal stress. The compact footprint (2.25 x 2.05 x 3.05 inches) and minimal weight (0.25 lbs) make it ideal for space-constrained engine bays and weight-critical applications. Cold Case's quality construction ensures consistent performance across temperature extremes and extended duty cycles common in military and law enforcement vehicle operations.

This adapter is ideal for technicians, mechanics, and equipment specialists working on modular cooling system installations where standardized connection points are required. The 1/4in NPT port accommodates standard gauge ports, thermostatic switches, or secondary feed/return lines, making it compatible with most Cold Case Radiators systems and universal cooling applications. Installation requires basic mechanical competency and standard SAE wrenches; the compact profile allows fitment in most underhood configurations. For OEM replacement, system upgrades, or custom build applications, this hose adapter delivers the reliability and dimensional accuracy that tactical and military platforms demand.