Radiator Hose 1-1/2in Check Valve w/8AN

The Radiator Hose 1-1/2in Check Valve w/8AN is a precision fluid control component designed for high-performance cooling systems and motorsport applications. This flapper-style check valve is essential for preventing backflow and siphoning in radiator lines, ensuring engine cooling efficiency and system integrity.

Constructed from durable aluminum with a natural finish, this check valve features a 1-1/2 inch hose barb for secure connections. The dual 8 AN female O-ring ports allow for easy integration with -8 AN fitting systems, providing flexibility in custom plumbing layouts. The internal flapper mechanism opens under forward pressure to allow coolant flow while sealing against reverse flow.

Ideal for custom cooling system builders and racing teams, this check valve fits easily into tight engine bay installations. Its compact design and reliable performance make it a valuable addition for anyone upgrading to remote-mount radiators or multi-loop cooling architectures.