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This male clean-break fluid fitting accepts the female quick-disconnect fitting on the Hot Head Engine Preheater (formerly Part No. 3750-401). Although we no longer carry the Hot Head, we still offer these fittings for existing installations.
This lightweight aluminum fitting allows flow with minimal restriction when connected. When you disconnect the female fitting, internal valves positively stop fluid flow. Stainless steel internals offer corrosion resistance, and the Viton seals handle temperatures as high as 300° F. 1/2 NPT female threads allow a variety of plumbing options. Sold individually.
Locate two of these fittings (one inlet and one outlet) in a conveniently accessible but protected spot on the vehicle.
Install a Hot Head Remote-Connection Check Valve (Part No. 3750-425, sold separately) in one of your coolant hoses.
Use 10AN hose to connect the fittings to the valve, noting which leads to the Supply and which leads to the Return.
When you are ready to use the Hot Head, connect the hoses to the appropriate fitting. When the engine is warmed up, simply turn off the pump and release the QD fittings.
Aeroquip Part No. FBM1153.